{"title":"Spark Plug Wires \u0026 Wire Sets","description":null,"products":[{"product_id":"sierra-18-28046-marine-spark-plug-wire-set-8-cylinder-generator-ignition-wires-mpn-118-28046","title":"Sierra 18-28046 Plug Wire Set, 8-Cylinder Marine Ignition Wires","description":"\u003cp\u003eThe Sierra 18-28046 Plug Wire Set is a complete set of ignition wires engineered for 8-cylinder marine engines. Ignition wires carry high-voltage current from the distributor and coil to each spark plug, and worn or cracked wires are a common cause of misfires, rough idle, hard starting, and lost power on the water. This set replaces the full run of wires as a matched kit rather than one wire at a time, which keeps resistance and firing consistent across all cylinders.\u003c\/p\u003e\u003cp\u003eThe set includes the coil wire, the wires running to the distributor end, the spark plug end wires, the coil end wire, and the coil-distributor end wire, each sized to Sierra's marine ignition specifications for an 8-cylinder application. Sierra builds its ignition wires to marine-duty standards, accounting for the heat, vibration, and moisture exposure that engine compartments see, which is a key difference from automotive wire sets not intended for marine use.\u003c\/p\u003e\u003cp\u003eThis is a direct-fit replacement kit for 8-cylinder marine engines using this wire configuration. Install a full set at the same time you're doing a tune-up or troubleshooting an ignition misfire, since mixing old and new wires can leave uneven resistance across cylinders.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28046\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire:\u003c\/strong\u003e 12\/24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor End:\u003c\/strong\u003e 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug End:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil End:\u003c\/strong\u003e 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Distributor End:\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Plug in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341374\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28046 plug wire set fit?\u003c\/strong\u003e The Sierra 18-28046 is built for 8-cylinder marine engines and includes a full set of ignition wires sized for that cylinder count.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-28046 set?\u003c\/strong\u003e One complete set is included, covering the coil wire, the distributor end wire, the spark plug end wire, the coil end wire, and the coil-distributor end wire for an 8-cylinder engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShould I replace all the ignition wires at once?\u003c\/strong\u003e Yes, replacing the full 18-28046 set together keeps resistance consistent across all 8 cylinders, rather than mixing new and old wires that can cause uneven firing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-28046 plug wire set weigh?\u003c\/strong\u003e The Sierra 18-28046 plug wire set weighs 1.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28046 made for marine use specifically?\u003c\/strong\u003e Yes, Sierra builds the 18-28046 wire set to marine ignition specifications rather than automotive standards, since engine compartments on boats face more heat, vibration, and moisture exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector type does the 18-28046 use?\u003c\/strong\u003e The 18-28046 set uses a plug-in connector type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are common signs that ignition wires need replacing?\u003c\/strong\u003e Misfires, rough idle, hard starting, and reduced power are common symptoms of worn ignition wires, and installing the Sierra 18-28046 as a complete set addresses all cylinders at once.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many items are included with the 18-28046?\u003c\/strong\u003e The Sierra 18-28046 ships as a single set (1 item) containing the wires for all 8 cylinders.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-28046 the correct part number to search for this wire set?\u003c\/strong\u003e Yes, 18-28046 is the Sierra part number for this plug wire set and is the number to reference when ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-28046 be used for a routine tune-up?\u003c\/strong\u003e Yes, the 18-28046 plug wire set is commonly installed during a tune-up alongside spark plug replacement on 8-cylinder marine engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113371355,"sku":"SIE-18-28046","price":24.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28046__83989.1722505234.500.750.jpg?v=1785188094"},{"product_id":"sierra-18-28080-spark-plug-wire-set-for-6-cylinder-mercury-outboards","title":"Sierra 18-28080 Ignition Wire Set for 6-Cylinder Mercury Outboard Engines","description":"\u003cp\u003eThe Sierra 18-28080 is an ignition wire set built for 6-cylinder Mercury outboard engines. It supplies the coil-to-distributor and spark plug wiring needed to deliver a clean, consistent spark to each cylinder, which is essential for reliable starting, smooth idle, and efficient combustion on the water. The wire set is constructed from marine-grade stainless steel conductors insulated with PVC or marine-grade TPE, materials chosen for their resistance to moisture, heat, vibration, and the corrosive marine environment that breaks down automotive-grade wiring over time. Each wire terminates in a Deutsch DT-style connector for a secure, weather-resistant connection at the coil, distributor, and plug ends, helping prevent the misfires and hard-starting issues that come from corroded or loose terminals.\u003c\/p\u003e\u003cp\u003eThis set is sold as a complete 1-pack kit, giving boat owners and marine technicians everything needed to replace an aging or damaged wire set in one job rather than sourcing individual wires. Sierra manufactures its ignition components specifically for marine use, so the 18-28080 is built to standards appropriate for engines that run in a wet, salt-exposed setting rather than repurposed automotive parts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28080\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Ignition Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercury outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Marine-grade stainless steel, PVC or marine-grade TPE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Deutsch DT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 1.3 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.69 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 1 wire set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341398\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e6-cylinder Mercury outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28080 wire set fit?\u003c\/strong\u003e The Sierra 18-28080 is built for 6-cylinder Mercury outboard engines, supplying the coil, distributor, and spark plug wiring for that cylinder count.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-28080 set?\u003c\/strong\u003e One complete wire set is included per pack, sized to cover all 6 cylinders on the compatible Mercury outboard engine along with the coil and distributor connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-28080 made from?\u003c\/strong\u003e Marine-grade stainless steel conductors are insulated in PVC or marine-grade TPE, materials selected for resistance to moisture, heat, and the corrosive marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of connector does this wire set use?\u003c\/strong\u003e A Deutsch DT-style connector is used at the wire ends, providing a secure, weather-resistant fit that helps prevent corrosion-related misfires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow thick are the wires in the 18-28080 set?\u003c\/strong\u003e Each wire has a diameter of 1.3 millimeters, sized for reliable spark delivery in a 6-cylinder marine ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-28080 wire set weigh?\u003c\/strong\u003e The complete set weighs 0.69 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28080 an OEM Mercury part or an aftermarket replacement?\u003c\/strong\u003e The 18-28080 is a Sierra-manufactured ignition wire set produced specifically for marine use rather than an adapted automotive part, and it is sold under Sierra's own part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace ignition wires instead of just the spark plugs?\u003c\/strong\u003e Ignition wires like the Sierra 18-28080 corrode and degrade from marine moisture and heat exposure over time, and worn wires can cause misfires, hard starting, or rough idle even with new spark plugs installed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-28080 include the coil and distributor wires or just plug wires?\u003c\/strong\u003e The set covers coil and distributor wiring in addition to the spark plug wires needed for the 6-cylinder Mercury outboard engine it fits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-28080 be used on a 4-cylinder or 8-cylinder engine?\u003c\/strong\u003e No, the 18-28080 is configured specifically for 6-cylinder applications; Sierra offers other wire set part numbers for different cylinder counts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28080 suitable for salt water use?\u003c\/strong\u003e Yes, its marine-grade stainless steel and PVC or TPE insulation are designed to withstand the moisture and corrosion exposure of salt water marine environments.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113469659,"sku":"SIE-18-28080","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28080__60796.1722382534.500.750.jpg?v=1785188576"},{"product_id":"sierra-18-28082-spark-plug-wire-set-for-mercury-outboards","title":"Sierra Spark Plug Wire Set 18-28082 for Mercury Outboard Engines","description":"\u003cp\u003eThe Sierra 18-28082 Spark Plug Wire Set is a replacement ignition wire set built for Mercury outboard engines. It carries the high-voltage current from the ignition coil to the spark plug, and a worn or cracked wire is a common cause of misfires, hard starting, and rough idle in an outboard powerhead. This set uses a copper core for reliable electrical conductivity paired with a polyvinyl chloride (PVC) insulation jacket that resists heat, moisture, and the vibration exposure typical of an outboard engine compartment.\u003c\/p\u003e\u003cp\u003eThe set ships as a single count item (1 wire set) and is compact, with each packaged unit measuring 0.39 x 0.39 x 0.39 inches. It is designed for Mercury outboard applications and is a straightforward swap for a factory ignition wire that has degraded, cracked, or is arcing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28082\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Mercury Outboard Spark Plug Wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper (core), Polyvinyl Chloride (PVC) (insulation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1.0 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.57 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341411\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-28082?\u003c\/strong\u003e The Sierra 18-28082 is a spark plug wire set built for Mercury outboard engines, carrying ignition voltage from the coil to the spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire set made of?\u003c\/strong\u003e The 18-28082 uses a copper core for conductivity with a polyvinyl chloride (PVC) insulation jacket to resist heat and moisture.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-28082 set?\u003c\/strong\u003e The set is packaged as a single count item, listed as 1 wire set (Unit Count: 1.0 Count).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-28082 wire set as packaged?\u003c\/strong\u003e The packaged item measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-28082 weigh?\u003c\/strong\u003e It weighs 0.57 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the 18-28082 fit?\u003c\/strong\u003e The 18-28082 is categorized for Mercury outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28082 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-28082 is the Sierra manufacturer part number for this spark plug wire set, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-28082 come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-28082 is covered by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-28082?\u003c\/strong\u003e The UPC for the Sierra 18-28082 spark plug wire set is 808282341411.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace a spark plug wire like the 18-28082?\u003c\/strong\u003e A cracked, arcing, or degraded ignition wire causes misfires and hard starting; replacing it with the Sierra 18-28082 restores a reliable spark voltage path on Mercury outboard engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113535195,"sku":"SIE-18-28082","price":62.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28082__47663.1722382019.500.750.jpg?v=1785188459"},{"product_id":"sierra-18-28083-spark-plug-wire-for-mercury-v6-efi-dfi-dts-outboard-ignition","title":"Sierra 18-28083 Spark Plug Wire for Mercury V6 EFI\/DFI\/DTS Outboard","description":"\u003cp\u003eThe Sierra 18-28083 is a single spark plug wire built for Mercury V6 EFI\/DFI\/DTS outboard engines. It carries the ignition signal from the distributor end to the spark plug end using a copper conductor, chosen for consistent electrical conductivity under the vibration and heat cycling typical of an outboard engine compartment. The wire is insulated with polyvinyl chloride (PVC), a durable jacket material that resists abrasion, moisture, and heat exposure over repeated duty cycles.\u003c\/p\u003e\u003cp\u003eEach end of the wire terminates in a boot-style connector, which seats securely over the distributor terminal and the spark plug to maintain a tight electrical connection and help keep out moisture and salt air. The wire is compact, measuring 2.81 x 7.13 x 10.44 inches, making it easy to route through tight outboard engine bays without excess slack. It is sold as a single wire (not a multi-wire set), so it is intended for replacing one damaged or worn spark plug wire on a Mercury V6 EFI\/DFI\/DTS outboard rather than a full harness.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28083\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercury V6 EFI\/DFI\/DTS outboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper, Polyvinyl Chloride (PVC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Boot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Wires:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 2.81 x 7.13 x 10.44 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341428\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury V6 EFI\/DFI\/DTS outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28083 spark plug wire fit?\u003c\/strong\u003e The Sierra 18-28083 is built for Mercury V6 EFI\/DFI\/DTS outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-28083 a full wire set or a single wire?\u003c\/strong\u003e It is a single spark plug wire, not a multi-wire set, so it is meant to replace one wire on a Mercury V6 EFI\/DFI\/DTS outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-28083 wire made from?\u003c\/strong\u003e Copper conductor wrapped in polyvinyl chloride (PVC) insulation makes up the Sierra 18-28083, giving it durability against heat and moisture in the engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of connectors does this wire use?\u003c\/strong\u003e Boot-style connectors are fitted at both ends of the 18-28083, providing a secure seal at the distributor and spark plug terminals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-28083 spark plug wire?\u003c\/strong\u003e The Sierra 18-28083 measures 2.81 x 7.13 x 10.44 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-28083 weigh?\u003c\/strong\u003e This spark plug wire weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28083 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-28083 is the Sierra manufacturer part number for this spark plug wire, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this product?\u003c\/strong\u003e The package includes one Sierra 18-28083 spark plug wire with boot connectors on each end; unit count is 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-28083 wire on a different Mercury outboard model?\u003c\/strong\u003e The 18-28083 is designated for Mercury V6 EFI\/DFI\/DTS outboards; compatibility with other Mercury outboard models is not stated for this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is 18-28083 different from Sierra's multi-wire ignition sets?\u003c\/strong\u003e Unlike Sierra ignition wire sets that bundle four or more wires for a full harness replacement, the 18-28083 is a single wire intended for replacing just one spark plug wire on a Mercury V6 EFI\/DFI\/DTS outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connects to the distributor end of the 18-28083?\u003c\/strong\u003e A boot connector terminates the distributor end of the Sierra 18-28083, matching the boot connector at the spark plug end.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988114223323,"sku":"SIE-18-28083","price":19.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-28083__89723.1677852504.500.750.jpg?v=1785188019"},{"product_id":"sierra-18-28084-spark-plug-wire-set-for-mercury-outboards-replaces-mpn-118-28084-upc-808282341435","title":"Sierra 18-28084 Plug Wire Set for Mercury Outboard Engines, 1 Pack","description":"\u003cp\u003eThe Sierra 18-28084 Plug Wire Set is a replacement ignition wire set built for Mercury outboard engines. Ignition plug wires carry high-voltage spark from the coil to each spark plug, and worn, cracked, or corroded wires are a common cause of hard starting, misfires, and rough idle on outboard motors. This set is sold as a single 1-pack unit with a plug-in connector type for straightforward installation without special tools or splicing.\u003c\/p\u003e\u003cp\u003eSierra manufactures ignition and electrical components specifically for the marine industry, engineered to hold up to the vibration, heat, and moisture exposure that outboard engines see on the water. Replacing a full plug wire set rather than individual wires helps ensure consistent resistance and spark delivery across all cylinders, which supports smoother running and more reliable starts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28084\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Spark Plug Wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Plug in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 2.81 inches L x 10.44 inches W x 7.13 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.49 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341435\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Mercury outboard engines using the 18-28084 ignition wire set.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28084 plug wire set fit?\u003c\/strong\u003e The Sierra 18-28084 is a plug wire set designed for Mercury outboard engines, sold as a complete 1-pack ignition wire set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many plug wires are included in the 18-28084 set?\u003c\/strong\u003e This set is packaged as a single 1-pack unit, sold as one complete ignition plug wire set rather than individual wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector type does this plug wire set use?\u003c\/strong\u003e The 18-28084 uses a plug-in connector type, allowing it to connect directly without additional splicing hardware.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-28084 plug wire set weigh?\u003c\/strong\u003e The Sierra 18-28084 plug wire set weighs 0.49 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the 18-28084 plug wire set?\u003c\/strong\u003e It ships in packaging measuring 2.81 inches long, 10.44 inches wide, and 7.13 inches high.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28084 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-28084 is Sierra's own manufacturer part number for this ignition plug wire set, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace ignition plug wires on an outboard engine?\u003c\/strong\u003e Worn or corroded ignition plug wires can cause misfires, hard starting, and rough idle, and replacing the full set with the Sierra 18-28084 helps restore consistent spark delivery to each cylinder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere is the Sierra 18-28084 manufactured?\u003c\/strong\u003e The Sierra 18-28084 plug wire set is manufactured in China.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-28084 come with installation instructions?\u003c\/strong\u003e The listing for the Sierra 18-28084 does not specify included installation instructions; it is packaged as the plug wire set itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-28084 plug wire set?\u003c\/strong\u003e The UPC for the Sierra 18-28084 plug wire set is 808282341435.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988114321627,"sku":"SIE-18-28084","price":42.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28084__69929.1722374391.500.750.jpg?v=1785189177"},{"product_id":"sierra-18-28090-spark-plug-wire-set-for-johnson-evinrude-v6-outboard-complete-6-wire-kevlar-ignition-lead-set","title":"Sierra 18-28090 V6 Outboard Spark Plug Wire Set for Johnson\/Evinrude - 6 Wires","description":"\u003cp\u003eThe Sierra 18-28090 is a V6 outboard spark plug wire set built as a complete replacement for Johnson\/Evinrude V6 outboard engines. The set includes a total of six wires, each constructed with a Kevlar core for durability and long life and a stainless steel wound conductor to support maximum horsepower and engine performance. Every wire is covered in an 8mm high tear strength silicone jacket, chosen for its resistance to high under-cowl temperatures, and reinforced with an innovative nylon reinforcing tape for added strength and durability. A high tensile strength membrane adds further heat resistance so the wires hold up under continued engine operation.\u003c\/p\u003e\u003cp\u003eEach wire terminates in corrosion resistant stainless steel spark plug and distributor terminals, which maintain strong electrical conductivity even in a marine environment. The distributor end uses moisture-proof, molded insulators to keep water and condensation out of the connection, and a high-quality conductive center carrier reinforcement keeps the conductor intact over time. The mag\/wire wound core is engineered to deliver maximum voltage to the plugs while suppressing radio frequency interference (R.F.I.) and electromagnetic interference (E.M.I.), which helps prevent disruption to onboard electronics. This set is designed specifically for Johnson\/Evinrude V6 outboard engines and is sold as a matched set of six wires with boot-style connectors.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28090\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Outboard Configuration:\u003c\/strong\u003e V6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Brand:\u003c\/strong\u003e Johnson\/Evinrude\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Count:\u003c\/strong\u003e 6 wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Jacket:\u003c\/strong\u003e 8mm silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Corrosion resistant stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Insulators:\u003c\/strong\u003e Moisture-proof, molded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Suppression:\u003c\/strong\u003e Mag\/wire wound core for R.F.I. And E.M.I. Suppression\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10 x 6 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8375 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude V6 outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28090 spark plug wire set fit?\u003c\/strong\u003e The Sierra 18-28090 is built for Johnson\/Evinrude V6 outboard engines and includes a complete set of six wires for that configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-28090 set?\u003c\/strong\u003e This set includes a total of six spark plug wires, matching the cylinder count of a Johnson\/Evinrude V6 outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire jacket made of?\u003c\/strong\u003e Each wire in the 18-28090 set is covered in an 8mm high tear strength silicone jacket for protection against high under-cowl temperatures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is inside the wire, and how durable is it?\u003c\/strong\u003e The 18-28090 wire set uses a Kevlar core along with a stainless steel wound conductor, giving it durability and long life while supporting full engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo these wires help with radio or electronic interference?\u003c\/strong\u003e Yes, the 18-28090 uses a mag\/wire wound core specifically designed to suppress radio frequency interference (R.F.I.) and electromagnetic interference (E.M.I.).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of terminals does the Sierra 18-28090 use?\u003c\/strong\u003e The set terminates in corrosion resistant stainless steel spark plug and distributor terminals, which maintain strong conductivity in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the distributor connections protected from moisture?\u003c\/strong\u003e Yes, the 18-28090 features moisture-proof, molded distributor insulators to keep water and condensation out of the connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-28090 wire set as packaged?\u003c\/strong\u003e The Sierra 18-28090 spark plug wire set measures 10 x 6 x 3 inches and weighs 0.8375 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-28090 the same set as the 18-28092?\u003c\/strong\u003e No, the 18-28090 is the V6 Outboard Plug Wire Set, while the 18-28092 is a separate part number for a V4 Outboard Plug Wire Set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does the 18-28090 use a nylon reinforcing tape?\u003c\/strong\u003e The nylon reinforcing tape adds strength and durability to each wire in the 18-28090 set, working alongside the high tensile strength membrane for added heat resistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-28090 work on a V4 or inline outboard?\u003c\/strong\u003e No, the 18-28090 is designed specifically for Johnson\/Evinrude V6 outboard engines and is not the correct set for a V4 or inline configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-28090?\u003c\/strong\u003e Ordering the Sierra 18-28090 gets you the complete matched set of six spark plug wires with boots and terminals for a Johnson\/Evinrude V6 outboard.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988126740699,"sku":"SIE-18-28090","price":58.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__75442.1773294563.500.750.jpg?v=1785188577"},{"product_id":"sierra-18-28086-spark-plug-wire-set-for-6-cylinder-mercury-outboards-copper-core-boot-connectors","title":"Sierra 18-28086 Spark Plug Wire Set for 6-Cylinder Mercury Outboard Engines","description":"\u003cp\u003eThe Sierra 18-28086 Spark Plug Wire Set is a replacement ignition wire set built for 6-cylinder Mercury outboard engines. Each set is packaged complete and ready to install, restoring reliable spark delivery to engines with worn, cracked, or deteriorated factory wires. The wires use a copper core for consistent electrical conduction along with polyvinyl chloride (PVC) insulation that stands up to engine-bay heat, moisture, and vibration. Boot-style connectors on the wire ends provide a secure, snug fit at the spark plug and coil connection points, helping prevent misfires caused by loose or arcing connections.\u003c\/p\u003e\u003cp\u003eBecause ignition wires degrade over time from heat cycling and exposure to fuel and oil residue, replacing the full set together (rather than one wire at a time) helps ensure even resistance and consistent spark across all cylinders. The 18-28086 set is sized specifically for 6-cylinder applications, matching the cylinder count of the Mercury outboard engines it is designed to service.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28086\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper (core), Polyvinyl Chloride (PVC) (insulation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Boots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1 (complete set)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.78125 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341459\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits 6-cylinder Mercury outboard engines.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the Sierra 18-28086 spark plug wire set designed for?\u003c\/strong\u003e The 18-28086 set is built for 6-cylinder Mercury outboard engines, matching the cylinder count and ignition layout of those engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cylinders does the 18-28086 wire set cover?\u003c\/strong\u003e Six. The set is sized for 6-cylinder engine applications, providing one wire per cylinder as a complete set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the wires made of?\u003c\/strong\u003e The 18-28086 spark plug wires use a copper core for electrical conduction, wrapped in polyvinyl chloride (PVC) insulation for protection against heat and moisture in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of connector do the wires use?\u003c\/strong\u003e Boot-style connectors are used on the Sierra 18-28086 wire set for a secure fit at the spark plug and coil connection points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full set or a single wire?\u003c\/strong\u003e The 18-28086 is sold as one complete set covering all 6 cylinders, not as an individual replacement wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-28086 set include the spark plugs themselves?\u003c\/strong\u003e No, this is an ignition wire (lead) set only; spark plugs are not included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-28086 wire set weigh?\u003c\/strong\u003e It weighs 0.78125 pounds as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the packaged dimensions of the wire set?\u003c\/strong\u003e The listed item dimensions for the Sierra 18-28086 are 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28086 a genuine manufacturer part?\u003c\/strong\u003e Yes, it is a genuine Sierra part identified by UPC 808282341459.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace all the ignition wires at once instead of just the failed one?\u003c\/strong\u003e Replacing the full 18-28086 set keeps resistance and spark strength consistent across all 6 cylinders, since wires age and degrade at similar rates when exposed to the same heat and vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if the 18-28086 is the correct wire set for my boat?\u003c\/strong\u003e Confirm your outboard is a 6-cylinder Mercury engine, since the 18-28086 set is matched to that cylinder count.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988126806235,"sku":"SIE-18-28086","price":94.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28086__36846.1722514505.500.750.jpg?v=1785188268"},{"product_id":"sierra-18-28085-spark-plug-wire-set-4-lead-copper-core-ignition-wires-for-marine-outboards","title":"Sierra Spark Plug Wire Set 18-28085 for Mercury Outboard Engines","description":"\u003cp\u003eThe Sierra 18-28085 Spark Plug Wire Set is a copper-core ignition wire set built for Mercury outboard engines. Each wire carries the ignition spark from the coil or distributor to the spark plug, and consistent, low-resistance delivery is critical for reliable starting, smooth idle, and full power output on the water. Sierra builds this set with a copper core and copper top material, matching the conductive properties expected of marine-grade ignition wiring, and it is designed as a universal fit across the outboard applications it covers rather than a single narrow application.\u003c\/p\u003e\u003cp\u003eThis is a complete set (one unit count) intended as a direct replacement for a worn, cracked, or misfiring wire set, and it carries Sierra's standard limited warranty. Because ignition wires age from heat cycling and vibration, replacing the full set at once rather than one wire at a time helps keep resistance and timing consistent across all cylinders. The 18-28085 is intended for watercraft use and is sold as a universal-fit wire set rather than being restricted to one specific engine block or horsepower rating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28085\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Material Type:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Watercraft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Fit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.68 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341442\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eMercury outboard engines (universal fit; no specific horsepower, year, or model restriction is specified).\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28085 spark plug wire set fit?\u003c\/strong\u003e The 18-28085 is a universal-fit wire set intended for Mercury outboard engines; no specific horsepower or model range is specified for it, so it is not limited to one engine block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-28085 set?\u003c\/strong\u003e This is sold as one complete set (unit count of 1), covering the full wire set rather than an individual replacement wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the conductor made of?\u003c\/strong\u003e Both the core and the top material of the Sierra 18-28085 wire set are copper, which provides low-resistance conduction for reliable spark delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-28085 is a Sierra-branded spark plug wire set, manufactured by Sierra International with its own limited warranty coverage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-28085 wire set weigh?\u003c\/strong\u003e The Sierra 18-28085 spark plug wire set weighs 0.68 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace the whole wire set instead of a single wire?\u003c\/strong\u003e Replacing all wires together, as with the 18-28085 set, keeps resistance and spark delivery consistent across every cylinder instead of leaving older, higher-resistance wires mixed in with a new one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-28085 set intended for marine or automotive use?\u003c\/strong\u003e It is listed for watercraft use, making it a marine ignition wire set rather than an automotive-specific product.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-28085 come with a warranty?\u003c\/strong\u003e Yes, the Sierra 18-28085 wire set includes Sierra's standard limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with part number 18-28085?\u003c\/strong\u003e The package includes the complete spark plug wire set only, listed under the included components as Wire Set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-28085 fit any outboard, or only certain horsepower ranges?\u003c\/strong\u003e It is designated a universal fit for Mercury outboard engines, with no specific horsepower or year range stated in its specifications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988126839003,"sku":"SIE-18-28085","price":62.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28085__15400.1722361936.500.750.jpg?v=1785188953"},{"product_id":"sierra-18-28100-coil-lead-wire-for-sterndrive-inboard-marine-ignition-copper-coil-to-distributor-lead","title":"Sierra Coil Lead Wire 18-28100, 12 Inch, 90 Degree Male Distributor End to 90 Degree Female Coil End","description":"\u003cp\u003eThe Sierra Coil Lead Wire 18-28100 is a copper ignition coil lead built to carry current from the ignition coil to the distributor on marine engines with a traditional points-and-coil ignition setup. It measures 12 inches long and is configured with a 90 degree male connector on the distributor end and a 90 degree female connector on the coil end, matching the exact routing angle these engines require so the lead sits flush without kinking or straining the terminals.\u003c\/p\u003e\u003cp\u003eCopper construction provides reliable electrical conductivity for consistent spark delivery, which is essential for dependable ignition performance in a marine environment. Because coil leads are a wear item exposed to heat and vibration, replacing a cracked or corroded lead with this Sierra 18-28100 helps restore proper coil-to-distributor connection and ignition reliability. Note that Sierra also offers 18-28101 (female distributor end, female coil end) and 18-28102 (male distributor end, 180 degree male coil end) as separate part numbers, so confirm the connector configuration needed before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Coil Lead Wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor End Connector:\u003c\/strong\u003e 90 degree male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil End Connector:\u003c\/strong\u003e 90 degree female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 1.45 x 5.85 x 6.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.13 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341466\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-28100 coil lead wire used for?\u003c\/strong\u003e It carries current from the ignition coil to the distributor on marine engines using a points-and-coil ignition system, connecting the coil to the distributor with a 90 degree male end and a 90 degree female end.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the 18-28100 coil lead?\u003c\/strong\u003e The lead measures 12 inches long, running from the coil terminal to the distributor terminal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector configuration does the 18-28100 have?\u003c\/strong\u003e It has a 90 degree male connector on the distributor end and a 90 degree female connector on the coil end.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the coil lead made of?\u003c\/strong\u003e The Sierra 18-28100 is made of copper for reliable electrical conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-28100 coil lead weigh?\u003c\/strong\u003e It weighs 0.13 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-28100 the same as the 18-28101 coil lead?\u003c\/strong\u003e No. The 18-28100 has a 90 degree male distributor end and 90 degree female coil end, while the 18-28101 has a female distributor end and a 90 degree female coil end. They are separate Sierra part numbers, so match connector genders carefully before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-28100 differ from the 18-28102?\u003c\/strong\u003e The 18-28100 uses a 90 degree female coil end connector, while the 18-28102 uses a 180 degree male coil end connector. Both share the same 12 inch length and 90 degree male distributor end.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the packaged 18-28100?\u003c\/strong\u003e Item dimensions are 1.45 x 5.85 x 6.75 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-28100 come as a single unit?\u003c\/strong\u003e Yes, the Sierra 18-28100 coil lead wire ships as one item.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-28100 coil lead?\u003c\/strong\u003e The UPC is 808282341466.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-28100 an OEM part or aftermarket?\u003c\/strong\u003e It is a Sierra-brand replacement coil lead wire identified by part number 18-28100, sold as a direct component replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition system is the 18-28100 coil lead designed for?\u003c\/strong\u003e It is designed for marine engines with a coil-and-distributor style ignition system that uses a separate coil lead between the coil and distributor.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988128051419,"sku":"SIE-18-28100","price":15.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-28100__42028.1710174825.500.750.jpg?v=1785188581"},{"product_id":"sierra-18-28081-ignition-spark-plug-wire-set-for-6-cylinder-mercury-outboards","title":"Sierra 18-28081 Ignition Wire Set for 6-Cylinder Mercury Outboard Engines","description":"\u003cp\u003eThe Sierra 18-28081 is an ignition wire set built for 6-cylinder Mercury outboard engines. This set supplies the coil wire and distributor-end wiring needed to deliver spark from the ignition coil through the distributor to each cylinder, restoring consistent firing and easier starts on an outboard where the factory wiring has cracked, arced, or lost insulation integrity over time.\u003c\/p\u003e\u003cp\u003eEach wire uses a copper conductor for low-resistance spark transfer, wrapped in Polyvinyl Chloride (PVC) insulation that resists the heat, vibration, moisture, and fuel exposure typical of a marine engine compartment. Because the wires are matched to the coil and distributor routing of a 6-cylinder Mercury outboard, the set installs as a direct match for that cylinder count without cutting, splicing, or re-terminating individual leads.\u003c\/p\u003e\u003cp\u003eThe set ships as a single complete unit (1 count) so every wire needed for the engine's ignition circuit arrives together, weighing 0.75 pounds. It is intended as a full replacement of the existing ignition wiring rather than a single-wire repair, giving the ignition system uniform resistance and insulation across all cylinders after installation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28081\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury Outboard Spark Plug Wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper, Polyvinyl Chloride (PVC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.75 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282341404\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e6-cylinder Mercury outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28081 ignition wire set fit?\u003c\/strong\u003e The Sierra 18-28081 is built for 6-cylinder Mercury outboard engines, supplying the coil wire and distributor-end leads for that cylinder count.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-28081 set?\u003c\/strong\u003e It ships as one complete set (1 count) covering the coil wire and distributor-end wiring for all 6 cylinders, not an individual wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the wires made from?\u003c\/strong\u003e The 18-28081 wire set uses a copper conductor for spark transfer, insulated in Polyvinyl Chloride (PVC) to resist heat, moisture, and vibration in the engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-28081 weigh?\u003c\/strong\u003e This ignition wire set weighs 0.75 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-28081 a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-28081 is a genuine Sierra ignition wire set, not a generic aftermarket splice kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this set include the coil wire?\u003c\/strong\u003e Yes, the coil wire is included along with the distributor-end wiring in the 18-28081 set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this wire set be used on a 4-cylinder or 8-cylinder Mercury outboard?\u003c\/strong\u003e No. The 18-28081 is matched to 6-cylinder Mercury outboard engines; Sierra offers separate part numbers for other cylinder counts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace the ignition wire set instead of a single wire?\u003c\/strong\u003e Replacing the full 18-28081 set gives every cylinder matching resistance and fresh PVC insulation, which keeps ignition timing and spark strength consistent across a 6-cylinder Mercury outboard rather than leaving older, degraded wires in the circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat signs indicate the ignition wires need replacement?\u003c\/strong\u003e Cracked or brittle PVC insulation, visible arcing, misfires, or hard starting on a 6-cylinder Mercury outboard point to worn ignition wiring that the 18-28081 set is designed to replace.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the UPC for the 18-28081 wire set 808282341404?\u003c\/strong\u003e Yes, 808282341404 is the UPC associated with the Sierra 18-28081 ignition wire set.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988128248027,"sku":"SIE-18-28081","price":70.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28081__83766.1722515097.500.750.jpg?v=1785187988"},{"product_id":"sierra-18-28092-spark-plug-wire-set-for-v4-outboard-motors-evinrude-outboard-ignition-wires","title":"Sierra 18-28092 V4 Outboard Spark Plug Wire Set for Evinrude Outboards","description":"\u003cp\u003eThe Sierra 18-28092 is a V4 Outboard Plug Wire Set built to deliver a clean, reliable spark to each cylinder of a V4 outboard engine, including Evinrude V4 outboard applications. Ignition wires take constant heat, vibration, and moisture under the cowling, and this set is constructed to hold up to that environment while keeping voltage loss and electrical noise to a minimum.\u003c\/p\u003e\u003cp\u003eEach wire uses a mag\/wire wound core that delivers maximum voltage to the plug while suppressing radio frequency interference (RFI) and electromagnetic interference (EMI), which helps prevent static or interference with onboard electronics. A high-quality conductive center carrier reinforcement maintains conductor integrity over time, while a high tensile strength membrane and an innovative nylon reinforcing tape add durability and resist wire breakage from vibration and flexing. The distributor ends use moisture-proof, molded insulators to keep water and humidity out of the connection points, protecting against misfires and corrosion.\u003c\/p\u003e\u003cp\u003eThe outer jacket is an 8mm silicone material with high tear strength, rated to protect the conductor at temperatures up to 500 degrees F, making it suitable for the high-heat conditions found around an outboard powerhead. This set is sized and configured specifically for V4 outboard engines; Sierra offers a separate wire set for V6 outboards for engines with a different cylinder configuration.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-28092\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e V4 Outboard Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e V4 outboard engines, including Evinrude outboard applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Jacket:\u003c\/strong\u003e 8mm silicone jacket, high tear strength\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Resistance:\u003c\/strong\u003e Up to 500 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Type:\u003c\/strong\u003e Mag\/wire wound core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Suppression:\u003c\/strong\u003e Resists radio frequency interference (RFI) and electromagnetic interference (EMI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulators:\u003c\/strong\u003e Moisture-proof, molded distributor insulators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforcement:\u003c\/strong\u003e High-quality conductive center carrier reinforcement with nylon reinforcing tape\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Male-to-Male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Shape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Count:\u003c\/strong\u003e 1 set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.59 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282339517\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for V4 outboard engines, including Evinrude V4 outboard applications. A separate Sierra wire set (18-28090) is offered for V6 outboards, so confirm your engine's cylinder configuration before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo specific OEM cross-reference numbers are listed for the 18-28092.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-28092 fit?\u003c\/strong\u003e The 18-28092 is a plug wire set built specifically for V4 outboard engines, including Evinrude V4 outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-28092 the same as the V6 wire set?\u003c\/strong\u003e No. The 18-28092 is configured for V4 outboards; Sierra offers a separate part, 18-28090, for V6 outboards. Order the set that matches your engine's cylinder count.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires are included in this set?\u003c\/strong\u003e The Sierra 18-28092 is sold as one complete wire set for a V4 outboard engine, with one wire per cylinder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the wire jacket made from?\u003c\/strong\u003e The 18-28092 uses an 8mm high tear strength silicone jacket that protects the conductor at temperatures up to 500 degrees F.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires cause radio or electronic interference?\u003c\/strong\u003e No. The mag\/wire wound core in the 18-28092 delivers maximum voltage while suppressing radio frequency interference (RFI) and electromagnetic interference (EMI).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-28092 resist moisture at the connections?\u003c\/strong\u003e Moisture-proof, molded distributor insulators are used at the connection points to help keep water and humidity out of the ignition circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow durable is this wire set under vibration?\u003c\/strong\u003e The set combines a high tensile strength membrane with nylon reinforcing tape, and a conductive center carrier reinforcement, to resist breakage from engine vibration and repeated flexing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector type do the wires use?\u003c\/strong\u003e The 18-28092 wire set uses male-to-male connectors with a round wire shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-28092 weigh?\u003c\/strong\u003e The 18-28092 spark plug wire set weighs 0.59 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there OEM cross-reference numbers for the 18-28092?\u003c\/strong\u003e No specific OEM cross-reference numbers are published for the Sierra 18-28092; it is identified by its Sierra part number, 18-28092.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this wire set be used on engines other than Evinrude?\u003c\/strong\u003e The 18-28092 is built for V4 outboard engines and is associated with Evinrude outboard applications; confirm your engine matches a V4 configuration before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988128444635,"sku":"SIE-18-28092","price":48.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-28092__26516.1739460522.500.750.jpg?v=1785188420"},{"product_id":"sierra-18-4455-1-marine-cable-boot-4-1-2-in-motor-well-pass-through-grommet-for-control-cables-fuel-lines-and-wiring","title":"Sierra Cable Boot 18-4455-1, Self-Adhesive Motor Well Boot for 4 1\/2 Inch Hole, Cable and Fuel Line Pass-Thru","description":"\u003cp\u003eThe Sierra Cable Boot 18-4455-1 is a self-adhesive motor well boot designed to provide a secure, organized pass-thru point for control cables, fuel lines, and wiring routed through a boat's transom or motor well. It is sized for a 4 1\/2 inch hole, making it a direct fit replacement for that opening size when reorganizing or sealing a cable and hose pass-through. The boot mounts using a self-adhesive installation, allowing it to be applied directly to the mounting surface without additional hardware.\u003c\/p\u003e\u003cp\u003eThis boot helps keep multiple cables, fuel lines, and wires bundled together as they pass through the hull or motor well, reducing chafe, movement, and disorganized routing. It measures 4.5 inches by 4.5 inches, matching the 4 1\/2 inch hole it is built for. Sierra also offers a companion boot sized for a 3 inch hole and a handle-only accessory, so boat owners with a different hole size or an existing boot that needs a new handle have matching options within the same family.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4455-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size:\u003c\/strong\u003e 4 1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 4.5 inches L x 4.5 inches W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Self-Adhesive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282386351\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits a 4 1\/2 inch mounting hole for motor well cable and fuel line pass-thru applications.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat hole size is the Sierra Cable Boot 18-4455-1 designed for?\u003c\/strong\u003e It is built for a 4 1\/2 inch hole, matching its 4.5 inch by 4.5 inch overall size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-4455-1 boot installed?\u003c\/strong\u003e This cable boot uses a self-adhesive installation, so it mounts directly to the surface around the pass-thru hole without extra fasteners.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this boot used for?\u003c\/strong\u003e The Sierra Cable Boot 18-4455-1 provides a secure, organized pass-thru for control cables, fuel lines, and wiring routed through a motor well or transom opening.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra make a version of this boot for a smaller hole?\u003c\/strong\u003e Yes, Sierra also offers 18-4454 for a 3 inch hole, which is a separate part number from the 4 1\/2 inch 18-4455-1 covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I buy just the handle for this cable boot separately?\u003c\/strong\u003e Yes, a handle-only option (18-4901) is available separately from the full 18-4455-1 boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4455-1 cable boot weigh?\u003c\/strong\u003e It weighs 0.09 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-4455-1 boot?\u003c\/strong\u003e The boot measures 4.5 inches by 4.5 inches, sized to cover a 4 1\/2 inch hole.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this boot fit a 3 inch cable pass-thru hole?\u003c\/strong\u003e No, the 18-4455-1 is sized specifically for a 4 1\/2 inch hole; a 3 inch hole requires the separate 18-4454 part instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan multiple cables and fuel lines pass through one 18-4455-1 boot?\u003c\/strong\u003e Yes, it is designed to organize and pass through multiple cables, fuel lines, or wires through a single motor well opening.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4455-1 boot genuine Sierra equipment?\u003c\/strong\u003e Yes, this is a genuine Sierra branded cable boot, part number 18-4455-1.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988197159131,"sku":"SIE-18-4455-1","price":35.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-4455__56953.1722505225.500.750.jpg?v=1785188581"},{"product_id":"sierra-18-4454-1-cable-boot-for-marine-ignition-wiring-round-weatherproof-connector-boot","title":"Sierra Cable Boot 18-4454-1","description":"\u003cp\u003eThe Sierra Cable Boot, part number 18-4454-1, is an electrical supply component designed to cover and protect cable connections on marine electrical and ignition systems. Cable boots like this one shield exposed terminal connections from moisture, corrosion, and accidental contact, helping maintain a secure and weatherproof electrical connection on board. This is a lightweight, single-piece boot sized for one cable connector.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-4454-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Cable Boot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Electrical Supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282386344\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.11 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-4454-1 cable boot used for?\u003c\/strong\u003e The Sierra 18-4454-1 is a cable boot used to cover and protect an electrical cable connection, guarding the terminal from moisture and accidental contact on a marine electrical system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4454-1 cable boot weigh?\u003c\/strong\u003e It weighs 0.11 pounds, making the Sierra 18-4454-1 a lightweight component for electrical wiring installations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4454-1 a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-4454-1 is a genuine Sierra branded cable boot, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra Cable Boot 18-4454-1?\u003c\/strong\u003e The UPC is 808282386344, which can be used to verify you are ordering the correct Sierra 18-4454-1 cable boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cable boots are included when I order 18-4454-1?\u003c\/strong\u003e One Sierra 18-4454-1 cable boot is included per unit ordered.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category does the Sierra 18-4454-1 fall under?\u003c\/strong\u003e The Sierra 18-4454-1 is classified as an electrical supply item, specifically a cable boot for wiring connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-4454-1 be used indoors and outdoors?\u003c\/strong\u003e Yes, the 18-4454-1 cable boot is suited for both indoor and outdoor marine electrical applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-4454-1 fit a specific connector shape?\u003c\/strong\u003e The Sierra 18-4454-1 cable boot has a round item shape designed to fit over a cable connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4454-1 lightweight?\u003c\/strong\u003e Yes, lightweight construction is a key feature of the Sierra 18-4454-1 cable boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know I am buying the correct cable boot for my application?\u003c\/strong\u003e Confirm the part number 18-4454-1 or UPC 808282386344 matches what your existing cable boot or wiring documentation calls for before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988197224667,"sku":"SIE-18-4454-1","price":13.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4454_lg__99727.1652900529.500.750.jpg?v=1785188634"},{"product_id":"sierra-18-5224-9-marine-spark-plug-wire-terminal-10-pack-brass-replaces-mercury-20121-johnson-evinrude-510364-for-outboard-ignition-wire","title":"Sierra 18-5224-9 Marine Spark Plug Wire Terminal, Replaces Mercury 20121, Package of 10","description":"\u003cp\u003eThe Sierra 18-5224-9 is a marine spark plug wire terminal designed to attach to ignition wire on outboard motors, sold as a package of 10 terminals. Built from brass for reliable electrical conductivity and corrosion resistance in the marine environment, this terminal is the connection point where ignition wire meets the spark plug boot, completing the circuit that fires the spark plug. Because it comes packaged in a quantity of 10, it is well suited for shops and boat owners servicing multiple cylinders or keeping spares on hand for ignition wire repairs and rebuilds.\u003c\/p\u003e\u003cp\u003eSierra engineers its ignition parts to meet or exceed the original equipment they replace, and this terminal is built to withstand the vibration, heat, and moisture exposure typical of outboard engine compartments. It is a direct equivalent for several OEM terminal numbers used across outboard and sterndrive ignition systems, making it a straightforward replacement when rebuilding ignition wire assemblies or repairing a damaged terminal connection.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5224-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 10 terminals per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282164911\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Ignition wire terminal for outboard motors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned to fit outboard motor ignition wire applications.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 510364\u003c\/li\u003e\n\u003cli\u003eMercury Marine 20121\u003c\/li\u003e\n\u003cli\u003eMercury Marine 8M0084600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow many terminals come in the Sierra 18-5224-9 package?\u003c\/strong\u003e The Sierra 18-5224-9 is sold as a package of 10 spark plug wire terminals, making it convenient for servicing an entire outboard motor's ignition wiring or keeping spares on hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-5224-9 terminal made of?\u003c\/strong\u003e It is made of brass, which provides good electrical conductivity and resists corrosion in the marine environment where ignition components are exposed to moisture.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-5224-9 terminal replace?\u003c\/strong\u003e It replaces Johnson\/Evinrude 510364, Mercury Marine 20121, and Mercury Marine 8M0084600, so it can be used as a direct equivalent for any of those OEM terminal numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5224-9 genuine Sierra or aftermarket?\u003c\/strong\u003e It is a genuine Sierra part, manufactured by Sierra as an aftermarket replacement engineered to meet or exceed the original equipment terminal it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is each spark plug wire terminal?\u003c\/strong\u003e Each 18-5224-9 terminal measures 0.39 x 0.39 x 0.39 inches, a compact size that fits onto ignition wire before the spark plug boot is attached.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5224-9 package weigh?\u003c\/strong\u003e The package of 10 Sierra 18-5224-9 terminals weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a spark plug wire terminal used for?\u003c\/strong\u003e A spark plug wire terminal, like the Sierra 18-5224-9, connects ignition wire to a spark plug boot, forming the electrical connection needed to deliver spark to the plug on an outboard motor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5224-9 come with installation instructions or crimping tools?\u003c\/strong\u003e The package contains only the brass terminals themselves; no crimping tool or instructions are included with the 18-5224-9.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5224-9 terminal fit any outboard motor ignition wire?\u003c\/strong\u003e The 18-5224-9 is designed as an ignition wire terminal for outboard motors; check that your ignition wire gauge matches the terminal before installing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty applies to the Sierra 18-5224-9?\u003c\/strong\u003e As a genuine Sierra product, the 18-5224-9 qualifies for Sierra's Customer Satisfaction Warranty, which covers defects in workmanship and materials for the useful life of the product.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-5224-9 be used to repair a single damaged terminal instead of rewiring the whole ignition harness?\u003c\/strong\u003e Yes, since the 18-5224-9 is sold in a package of 10, it can be used to replace just one damaged terminal or several as needed during ignition wire repairs.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202074331,"sku":"SIE-18-5224-9","price":15.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sierra_lg_1740__30176.1558127062.500.750.jpg?v=1785188022"},{"product_id":"magforce-9-marine-spark-plug-wire-lead-18-5227-1-replaces-mercury-84-813715a1-fits-mercury-mariner-outboards","title":"Sierra 18-5227-1 MagForce 9 Inch Spark Plug Wire, 7mm Copper Core, Replaces Mercury 84-813715A1","description":"\u003cp\u003eThe Sierra 18-5227-1 is a premium MagForce marine spark plug wire lead built for Mercury\/Mariner outboard engine ignition systems. It measures 9 inches in length with a 7mm copper core wire, designed to be \"electronics friendly\" so it protects onboard electronic devices and electronic engine controls from RFI (radio frequency interference) and EMI (electro magnetic interference) while still delivering maximum voltage to the spark plug.\u003c\/p\u003e\u003cp\u003eConstruction features moisture-proof, molded distributor insulators and a high-quality conductive center carrier reinforcement to keep the conductor intact over time. The mag\/wire wound core delivers full voltage without generating RFI or EMI, while a high tensile strength membrane and innovative nylon reinforcing tape add durability and heat resistance. The silicone jacket protects the conductor up to 500 degrees F and comes pre-greased for ultimate high-temperature protection on both the jacket and boots. Posi-lock stainless steel terminals resist corrosion and provide maximum conductivity at the connection points.\u003c\/p\u003e\u003cp\u003eThis exact-fit design is engineered for easy installation and years of trouble-free service, making it a direct replacement wire for the specified Mercury\/Mariner outboard ignition application. It is finished in white.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5227-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Diameter:\u003c\/strong\u003e 7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Outboard engine ignition systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury\/Mariner outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e84-813715A1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5227-1 spark plug wire fit?\u003c\/strong\u003e The Sierra 18-5227-1 is designed for Mercury\/Mariner outboard engine ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5227-1 a direct replacement for Mercury 84-813715A1?\u003c\/strong\u003e Yes, the 18-5227-1 replaces Mercury part number 84-813715A1 and is built as an exact-fit design for easy installation in place of that wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the Sierra 18-5227-1 spark plug wire?\u003c\/strong\u003e It measures 9 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the core diameter of this spark plug wire?\u003c\/strong\u003e The ignition wire's core is 7mm in diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the core made of?\u003c\/strong\u003e The 18-5227-1 uses a 7mm copper core wire for conducting voltage to the spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire protect against electronic interference?\u003c\/strong\u003e Yes, the MagForce construction of the 18-5227-1 is electronics friendly, protecting onboard electronic devices and engine controls from RFI and EMI while still delivering maximum voltage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the jacket made of and how much heat can it handle?\u003c\/strong\u003e The wire has a silicone jacket that protects the conductor up to 500 degrees F, and the jacketing and boots are pre-greased for high-temperature protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-5227-1?\u003c\/strong\u003e This spark plug wire is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5227-1 weigh?\u003c\/strong\u003e The 18-5227-1 weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of terminals does this spark plug wire use?\u003c\/strong\u003e It uses Posi-lock stainless steel terminals, which resist corrosion and provide maximum conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM or aftermarket spark plug wire?\u003c\/strong\u003e The 18-5227-1 is a Sierra aftermarket MagForce ignition wire manufactured as a direct replacement for the Mercury 84-813715A1 wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-5227-1 straightforward?\u003c\/strong\u003e Yes, its exact-fit design is intended for easy installation and years of trouble-free service on the applicable Mercury\/Mariner outboard ignition system.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202107099,"sku":"SIE-18-5227-1","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__12711.1753840680.500.750.jpg?v=1785188234"},{"product_id":"sierra-18-5228-1-magforce-9-marine-spark-plug-wire-lead-replaces-mercury-84-813715a1-fits-mercury-outboard-ignition","title":"Sierra 18-5228-1 MagForce 9 Inch 8mm Spark Plug Wire, Replaces Mercury 84-813715A1","description":"\u003cp\u003eThe Sierra 18-5228-1 is a 9 inch, 8mm MagForce ignition wire built for Mercury and Mariner outboard ignition systems. It is designed as an electronics friendly replacement lead, meaning it shields onboard electronic engine controls and other electronic devices from RFI and EMI interference while still delivering the full voltage the ignition system needs to fire the plug reliably. The exact fit design matches the original wire's dimensions and connector style, so it installs the same way the factory lead did without any modification or splicing.\u003c\/p\u003e\u003cp\u003eEach end terminates in a boot-style connector for a secure, weather-resistant seal at the spark plug and coil or distributor connection. This wire directly replaces Mercury part number 84-813715A1, making it a straightforward drop-in swap when an original equipment lead has cracked, arced, or lost continuity. Sierra builds each wire to meet or exceed the specifications of the original equipment part it replaces, so performance and durability match what the engine shipped with.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5228-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Wiring Plug Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Boot Style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Nylon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Spark Plug Wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 84-813715A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOutboard - Mercury\/Mariner ignition system\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e84-813715A1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5228-1 spark plug wire fit?\u003c\/strong\u003e The Sierra 18-5228-1 is built for the Mercury\/Mariner outboard ignition system, matching the fit of the original equipment wire it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-5228-1 replace?\u003c\/strong\u003e It directly replaces Mercury part number 84-813715A1, so it can be ordered as a drop-in substitute for that original equipment wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is this spark plug wire?\u003c\/strong\u003e The Sierra 18-5228-1 measures 9 inches in length with an 8mm wire gauge.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire gauge of the 18-5228-1?\u003c\/strong\u003e It is an 8mm spark plug wire, sized to match the original 9 inch Mercury\/Mariner lead it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector style does the 18-5228-1 use?\u003c\/strong\u003e This wire terminates in a boot-style connector at the spark plug end for a secure, weather-resistant fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5228-1 made from?\u003c\/strong\u003e The connector housing on the Sierra 18-5228-1 is nylon, chosen for heat resistance and a snug seal over the plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5228-1 weigh?\u003c\/strong\u003e The Sierra 18-5228-1 spark plug wire weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5228-1 safe for electronic engine controls?\u003c\/strong\u003e Yes, Sierra's MagForce construction on the 18-5228-1 is designed to be electronics friendly, protecting electronic engine controls and other onboard electronics from RFI and EMI interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5228-1 an OEM part or aftermarket?\u003c\/strong\u003e The 18-5228-1 is a Sierra aftermarket replacement wire engineered to meet or exceed the quality of the original Mercury 84-813715A1 equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many of these wires do I need for my engine?\u003c\/strong\u003e The 18-5228-1 is sold as a single 9 inch, 8mm wire; the number required depends on how many spark plugs your Mercury\/Mariner outboard has.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5228-1 install without modification?\u003c\/strong\u003e Yes, it uses an exact fit design matching the original Mercury\/Mariner wire, so it installs the same way as the factory 84-813715A1 lead without cutting or splicing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5228-1?\u003c\/strong\u003e Each order includes one Sierra 18-5228-1 plug wire with its boot-style connector attached, ready to install in place of the original Mercury 84-813715A1 lead.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202172635,"sku":"SIE-18-5228-1","price":20.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5228-1__70825.1722512069.500.750.jpg?v=1785188705"},{"product_id":"sierra-18-5225-marine-spark-plug-wire-kit-replaces-mercury-84-99215a26-84-813706a26-25-ft-7mm-hypalon-ignition-wire-for-outboard-motors","title":"Sierra 18-5225 Spark Plug Wire Kit, 25 Foot Hypalon Ignition Wire, Replaces Mercury 84-99215A26, 84-813706A26","description":"\u003cp\u003eThe Sierra 18-5225 Spark Plug Wire Kit gives you everything needed to rebuild the ignition wiring on outboard motors that use Mercury-style spark plug wire. Rather than a fixed-length pre-terminated wire, the kit is built around a 25 foot roll of 7mm Hypalon ignition wire with a metallic core, paired with a large assortment of three different end fittings so you can cut the wire to the exact length each cylinder requires and terminate it with the correct fitting for your engine. This makes the kit useful for replacing cracked, brittle, or misfiring ignition wires on multi-cylinder outboards without having to source individual pre-made leads.\u003c\/p\u003e\u003cp\u003eThe Hypalon jacket is a synthetic rubber compound chosen for its resistance to heat, oil, and the harsh marine environment, while the metallic core is designed to carry ignition voltage reliably to the spark plugs. Because the kit supplies bulk wire and multiple fitting sizes rather than one fixed harness, it is well suited to shops and owners who need to service more than one cylinder or more than one engine from a single kit. The Sierra 18-5225 directly replaces Mercury ignition wire kits 84-99215A26 and 84-813706A26.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5225\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 25 feet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 7 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Material:\u003c\/strong\u003e Hypalon jacket with metallic core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Fittings:\u003c\/strong\u003e Large assortment of three different sizes to fit outboard motors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.55 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned to fit outboard motors that use the Mercury ignition wire kits listed below.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 84-99215A26\u003c\/li\u003e\n\u003cli\u003eMercury 84-813706A26\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5225 Spark Plug Wire Kit include?\u003c\/strong\u003e The kit includes a 25 foot roll of 7mm Hypalon ignition wire with a metallic core, plus a large assortment of three different end fittings so you can build wires to fit outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the ignition wire in this kit?\u003c\/strong\u003e The wire supplied in the Sierra 18-5225 kit is 7 millimeters in diameter and comes as a 25 foot roll, letting you cut leads to the length each cylinder needs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire jacket made of?\u003c\/strong\u003e The 18-5225 kit uses 7mm Hypalon ignition wire with a metallic core, a synthetic rubber jacket chosen for durability in the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the Sierra 18-5225 replace?\u003c\/strong\u003e This kit replaces Mercury ignition wire kits 84-99215A26 and 84-813706A26.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this kit fit my specific outboard motor?\u003c\/strong\u003e The Sierra 18-5225 is built to fit outboard motors that originally used Mercury ignition wire kits 84-99215A26 or 84-813706A26; the assortment of three end fitting sizes is provided to match different outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit come with pre-cut, terminated wires?\u003c\/strong\u003e No. The 18-5225 supplies a 25 foot roll of bulk 7mm Hypalon ignition wire along with an assortment of end fittings, so wires are cut and terminated to the length and fitting needed for each cylinder.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much wire is in the Sierra 18-5225 kit?\u003c\/strong\u003e There are 25 feet of 7mm Hypalon ignition wire included in the kit, enough to build multiple spark plug leads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many end fitting sizes come with the kit?\u003c\/strong\u003e The Sierra 18-5225 includes a large assortment of three different end fitting sizes to fit outboard motors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5225 kit weigh?\u003c\/strong\u003e The kit weighs 0.55 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5225 an OEM Mercury part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra aftermarket kit engineered to replace Mercury ignition wire kits 84-99215A26 and 84-813706A26.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this kit be used on more than one cylinder or engine?\u003c\/strong\u003e Because the 18-5225 provides a full 25 foot roll of wire and multiple end fitting sizes rather than a single pre-made lead, it can be used to service more than one cylinder or spark plug wire from a single kit.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202205403,"sku":"SIE-18-5225","price":32.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5225__67788.1739458813.500.750.jpg?v=1785188550"},{"product_id":"sierra-18-5229-9-1-outboard-spark-plug-wire-set-22-7mm-5-wires","title":"Sierra 18-5229-9-1 Spark Plug Wire Set, 22 Inch, 7mm Copper Core, Pack of 5","description":"\u003cp\u003eThe Sierra 18-5229-9-1 Spark Plug Wire Set is a package of five 22 inch ignition wire leads built with 7mm copper core wire for marine engines. Each lead uses a Kevlar core for durability and long service life, paired with a stainless steel wound conductor to support consistent voltage delivery and engine performance. The wires are finished with premium silicone jacketing and boots, giving the leads high temperature protection at the plug and coil connections. Corrosion resistant stainless steel spark plug and distributor terminals maintain solid electrical conductivity in the marine environment, while the wire construction is designed to suppress RFI so it does not interfere with sensitive onboard electronics.\u003c\/p\u003e\u003cp\u003eThis set ships as a pack of 5 wires at 22 inches in length with a 7mm copper core, making it suited to engines that require this wire length and gauge. The male-to-male round connector design allows for straightforward installation in place of worn or cracked ignition leads.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5229-9-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Core:\u003c\/strong\u003e 7mm copper core wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e Pack of 5 spark plug wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound conductor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacketing:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Corrosion resistant stainless steel spark plug and distributor terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Gender:\u003c\/strong\u003e Male-to-Male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.53 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194062\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires come in the Sierra 18-5229-9-1 set?\u003c\/strong\u003e The Sierra 18-5229-9-1 set includes 5 spark plug wires, each 22 inches long with a 7mm copper core.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat length are these spark plug wires?\u003c\/strong\u003e Each wire in the 18-5229-9-1 set measures 22 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat gauge or core size is the wire?\u003c\/strong\u003e The 18-5229-9-1 wires use a 7mm copper core wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire core made of?\u003c\/strong\u003e A Kevlar core runs through each 18-5229-9-1 wire for durability and long life, wrapped around a stainless steel wound conductor for consistent power delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre these wires heat resistant?\u003c\/strong\u003e Yes, the 18-5229-9-1 leads are finished with premium silicone jacketing and boots that provide high temperature protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires interfere with my boat's electronics?\u003c\/strong\u003e No. The 18-5229-9-1 wire set is built for superior RFI suppression, which protects sensitive electronic engine systems from interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector type do these spark plug wires use?\u003c\/strong\u003e The 18-5229-9-1 set uses a male-to-male, round connector design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this spark plug wire set weigh?\u003c\/strong\u003e The Sierra 18-5229-9-1 pack of 5 spark plug wires weighs 0.53 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals corrosion resistant?\u003c\/strong\u003e Yes, the 18-5229-9-1 wires have corrosion resistant stainless steel spark plug and distributor terminals for reliable conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The Sierra 18-5229-9-1 spark plug wire set has UPC 808282194062.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full engine set or individual wires?\u003c\/strong\u003e The 18-5229-9-1 is sold as a package of 5 wires, priced per package rather than as a single wire.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202238171,"sku":"SIE-18-5229-9-1","price":58.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5229-9-1_lg__96538.1558127382.500.750.jpg?v=1785188270"},{"product_id":"sierra-18-5231-1-magforce-9-marine-spark-plug-wire-lead-replaces-omc-582365-evinrude-johnson-outboard-white","title":"Sierra 18-5231-1 MagForce 9 Inch Marine Spark Plug Wire Lead, Replaces OMC 582365","description":"\u003cp\u003eThe Sierra 18-5231-1 is a 9 inch MagForce marine spark plug wire lead built for outboard ignition systems. It uses a Kevlar core for durability and long service life, paired with a stainless steel wound conductor engineered to support maximum horsepower and engine performance. The wire is finished with premium silicone jacketing and boots that protect against high engine bay temperatures, while also providing superior RFI suppression to keep sensitive onboard electronics from picking up ignition interference.\u003c\/p\u003e\u003cp\u003eBoth the spark plug and distributor terminals are made from corrosion resistant stainless steel, maintaining strong electrical conductivity even in the salt air and moisture-heavy conditions common to marine use. The wire is finished in white and measures 9 inches in length, making it a direct fit replacement for the original equipment lead it is designed to replace. It is commonly used on outboard spark plug wire applications and is sold individually as a single wire.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5231-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Line:\u003c\/strong\u003e MagForce Spark Plug Wire Lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacketing:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Corrosion resistant stainless steel (spark plug and distributor ends)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194079\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal fit spark plug wire; not limited to a specific engine make or model.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 582365\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the length of the Sierra 18-5231-1 spark plug wire?\u003c\/strong\u003e The Sierra 18-5231-1 measures 9 inches in length, sized to match the original equipment lead it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5231-1 replace an OMC spark plug wire?\u003c\/strong\u003e Yes, the Sierra 18-5231-1 replaces OMC part number 582365.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this spark plug wire?\u003c\/strong\u003e It is finished in white silicone jacketing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the core material of the Sierra 18-5231-1?\u003c\/strong\u003e A Kevlar core runs through the 18-5231-1 for added durability and long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire fit a specific engine make or model?\u003c\/strong\u003e The Sierra 18-5231-1 is a universal fit spark plug wire rather than being limited to one specific engine make or model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the terminal ends made of?\u003c\/strong\u003e Both the spark plug end and distributor end terminals on the 18-5231-1 are corrosion resistant stainless steel for reliable conductivity in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this spark plug wire help with electronic interference?\u003c\/strong\u003e Yes, the silicone jacketing on the 18-5231-1 provides RFI suppression to reduce interference with sensitive onboard electronics.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5231-1 weigh?\u003c\/strong\u003e The Sierra 18-5231-1 spark plug wire weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5231-1 sold as a single wire or a set?\u003c\/strong\u003e The Sierra 18-5231-1 is sold as a single 9 inch spark plug wire lead, not a full set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the conductor type used in this wire?\u003c\/strong\u003e A stainless steel wound conductor is used inside the 18-5231-1 to support maximum horsepower and engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5231-1 built to handle high engine bay temperatures?\u003c\/strong\u003e Yes, the premium silicone jacketing and boots on the 18-5231-1 provide high temperature protection in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5231-1?\u003c\/strong\u003e The UPC for the Sierra 18-5231-1 spark plug wire is 808282194079.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202270939,"sku":"SIE-18-5231-1","price":13.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__09227.1752850643.500.750.jpg?v=1785189181"},{"product_id":"sierra-18-5230-9-1-spark-plug-wire-set-5-wires-for-evinrude-outboards","title":"Sierra 10 Inch Spark Plug Wire, 7mm Copper Core, Pack of 5 (18-5230-9-1)","description":"\u003cp\u003eThe Sierra 18-5230-9-1 is a 10 inch marine spark plug wire built with 7mm copper core metallic wire, sold as a pack of 5. It is part of Sierra's MAGFORCE line of ignition wires, engineered to be \"electronics friendly\" so it protects onboard electronic devices and electronic engine controls from RFI (radio frequency interference) and EMI (electromagnetic interference) while still delivering the maximum amount of voltage to the spark plug. The metallic copper core construction is designed to carry current efficiently and consistently for reliable ignition performance on the water.\u003c\/p\u003e\u003cp\u003eEach wire uses an exact fit design intended for straightforward installation and years of trouble-free service, making it a practical choice for routine ignition maintenance or replacing worn, cracked, or high-resistance spark plug wires. Because these wires are sold per package of 5 at a fixed 10 inch length, they suit engines and configurations that call for that specific wire length; Sierra also offers this same wire in a 9 inch version (18-5227-1) and a 22 inch version (18-5229-9-1) for applications requiring a different length.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5230-9-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 7mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Type:\u003c\/strong\u003e Metallic core wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.53 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition System Feature:\u003c\/strong\u003e Electronics friendly, RFI\/EMI protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow long is the Sierra 18-5230-9-1 spark plug wire?\u003c\/strong\u003e The 18-5230-9-1 spark plug wire measures 10 inches in length, which is the fixed length for this specific part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in a package?\u003c\/strong\u003e The 18-5230-9-1 is sold as a package of 5 spark plug wires, not as a single wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire made of?\u003c\/strong\u003e This spark plug wire is built with 7mm copper core metallic wire, part of Sierra's metallic core wire construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat makes this different from a standard spark plug wire?\u003c\/strong\u003e The 18-5230-9-1 is part of Sierra's MAGFORCE ignition wire line, which is designed to be electronics friendly, meaning it protects onboard electronic devices and electronic engine controls from RFI and EMI interference while still delivering maximum voltage to the plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wire suitable for a marine ignition system?\u003c\/strong\u003e Yes, the 18-5230-9-1 is designed as a marine ignition system spark plug wire with an exact fit design for easy installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat if I need a longer or shorter wire than 10 inches?\u003c\/strong\u003e Sierra offers the same wire construction in other lengths under different part numbers: 9 inches is part number 18-5227-1, and 22 inches is part number 18-5229-9-1. Each is a separate SKU, so order the length that matches your application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5230-9-1 wire help prevent electrical interference?\u003c\/strong\u003e Yes, this wire is designed to protect electronic devices and electronic engine controls from RFI and EMI while delivering maximum voltage, per its MAGFORCE electronics friendly design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5230-9-1 easy to install?\u003c\/strong\u003e The wire uses an exact fit design intended for easy installation and years of trouble-free service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is in the package?\u003c\/strong\u003e The package contains 5 individual 10 inch, 7mm copper core spark plug wires (part number 18-5230-9-1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part?\u003c\/strong\u003e Yes, part number 18-5230-9-1 is a genuine Sierra spark plug wire from Sierra's MAGFORCE ignition wire lineup.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988202336475,"sku":"SIE-18-5230-9-1","price":17.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5230-9-1_lg__37227.1558127432.500.750.jpg?v=1785189065"},{"product_id":"sierra-18-5752-universal-8mm-spark-plug-boot-with-terminal-connector-replaces-oem-580339-for-force-yamaha-outboards","title":"Sierra 18-5752 Universal 8mm Spark Plug Boot, OEM Equivalent 580339, with Terminal Connector","description":"\u003cp\u003eThe Sierra 18-5752 is a universal 8mm spark plug boot supplied complete with a terminal connector, designed to make a secure, weather-resistant connection between an ignition wire and the spark plug on marine engines. The boot's job is to shield the plug connection from moisture, salt spray, and vibration common in the marine environment while maintaining a tight electrical seal so the engine fires reliably. Because it is a universal-fit boot rated for 8mm wire, it is built to be paired during ignition wire replacement, tune-ups, or when repairing a damaged or deteriorated boot on an existing wire set rather than replacing the entire harness. The included terminal connector means no separate crimp fitting is needed to complete the installation, simplifying the repair to a single part. Sierra states that its products are engineered to meet the demands of high-horsepower engines and to hold up in harsh marine conditions, and that they meet or exceed the original equipment part being replaced. This boot is sold as a single unit and is a straightforward, low-cost way to restore a clean ignition connection on outboard and other marine engines using 8mm plug wire.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-5752\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Universal Spark Plug Boot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Terminal Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Equivalent Part Number:\u003c\/strong\u003e 580339\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.07 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282244484\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle Service Type:\u003c\/strong\u003e Watercraft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal 8mm spark plug boot; fits applications using 8mm ignition wire.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e580339\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size wire does the Sierra 18-5752 spark plug boot fit?\u003c\/strong\u003e It is sized for 8mm ignition wire, matching the thread and wire diameter used on many marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this boot come with a connector, or do I need to buy one separately?\u003c\/strong\u003e The Sierra 18-5752 ships complete with a terminal connector, so no separate crimp fitting is required to finish the installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5752 boot made for a specific engine brand?\u003c\/strong\u003e No, it is a universal-fit 8mm spark plug boot rather than a boot molded for one specific engine or brand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the OEM equivalent part number for the Sierra 18-5752?\u003c\/strong\u003e 580339 is listed as the OEM equivalent part number for the Sierra 18-5752 spark plug boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5752 spark plug boot weigh?\u003c\/strong\u003e The Sierra 18-5752 weighs 0.07 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this boot on a boat that runs in saltwater?\u003c\/strong\u003e Yes, Sierra states its parts are engineered to hold up in the harsh marine environment, which includes saltwater exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many boots come in one package?\u003c\/strong\u003e One Sierra 18-5752 spark plug boot is included per unit; the quantity is 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this boot work as well as the original equipment part?\u003c\/strong\u003e Sierra states its products meet or exceed the original equipment part they replace, which applies to the 18-5752 boot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace a spark plug boot like the 18-5752?\u003c\/strong\u003e A spark plug boot typically needs replacement when it cracks, hardens, or no longer seats tightly, causing a weak or intermittent ignition connection; the 18-5752 is used to restore that seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with the 18-5752?\u003c\/strong\u003e The package includes one universal 8mm spark plug boot with its terminal connector already attached, ready to install on 8mm ignition wire.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988230156507,"sku":"SIE-18-5752","price":5.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5752__18586.1722511725.500.750.jpg?v=1785188653"},{"product_id":"sierra-18-8800-1-spark-plug-wire-set-for-chris-craft-engines-replaces-mercury-84-813720a5-omc-503748","title":"Sierra 18-8800-1 Spark Plug Wire Set, MerCruiser 110\/120\/140 I\/O, Replaces Mercury 84-813720A5, White","description":"\u003cp\u003eThe Sierra 18-8800-1 is a white spark plug wire set built for MerCruiser inboard\/outboard engines equipped with a contact-controlled distributor running standard rotation. This set is designed for the MerCruiser 110 and 120 (153 cid L4) and the MerCruiser 140 (181 cid L4), covering engines with the specific serial number ranges tied to those model years. It is not intended for MerCruiser engines equipped with Thunderbolt ignition systems.\u003c\/p\u003e\u003cp\u003eEach set carries 4 wires to match the 4-cylinder MerCruiser engines it is built for, delivering a reliable connection between the distributor and spark plugs for consistent ignition performance. The wires are rated for 12 volts DC, standard for marine ignition systems of this type. As a direct cross-reference to Mercury Marine, OMC, and Mallory OEM numbers, this set is a straightforward replacement when factory ignition wiring wears out or fails on a covered MerCruiser engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8800-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pins:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Voltage:\u003c\/strong\u003e 12 Volts (DC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.77 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194307\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Contact-controlled distributor, standard rotation, excludes Thunderbolt ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mercury Marine 84-813720A5, 84-816761Q4; OMC 503748; Mallory 9-28020\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e MerCruiser 110, 120, 140 I\/O (153\/181 cid L4)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 110, 153 cid L4, 1963-1966, Serial Number 1537370-2044033\u003c\/li\u003e\n\u003cli\u003eMerCruiser 120, 153 cid L4, 1964-1986, Serial Number 1666601-B531853\u003c\/li\u003e\n\u003cli\u003eMerCruiser 140, 181 cid L4, 1968-1986, Serial Number 2508261-B450800\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 84-813720A5\u003c\/li\u003e\n\u003cli\u003eMercury Marine 84-816761Q4\u003c\/li\u003e\n\u003cli\u003eOMC 503748\u003c\/li\u003e\n\u003cli\u003eMallory 9-28020\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8800-1 wire set fit?\u003c\/strong\u003e The 18-8800-1 fits MerCruiser 110 and 120 engines (153 cid L4) and the MerCruiser 140 (181 cid L4), each equipped with a contact-controlled distributor running standard rotation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire set work on a MerCruiser with Thunderbolt ignition?\u003c\/strong\u003e No. The 18-8800-1 excludes MerCruiser engines with Thunderbolt ignition systems; it is built for contact-controlled distributor setups only.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does 18-8800-1 cross-reference?\u003c\/strong\u003e It cross-references Mercury Marine 84-813720A5 and 84-816761Q4, OMC 503748, and Mallory 9-28020.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the set?\u003c\/strong\u003e 4 wires, matching the 4-cylinder MerCruiser 110, 120, and 140 engines this set is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the spark plug wires?\u003c\/strong\u003e The Sierra 18-8800-1 set is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the shipping weight of this part?\u003c\/strong\u003e The 18-8800-1 wire set weighs 0.77 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years does the 18-8800-1 cover?\u003c\/strong\u003e Coverage is 1963-1966 for the MerCruiser 110, 1964-1986 for the MerCruiser 120, and 1968-1986 for the MerCruiser 140.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage is the 18-8800-1 rated for?\u003c\/strong\u003e It is rated for 12 volts DC, standard for marine ignition wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8800-1 an OEM or aftermarket part?\u003c\/strong\u003e It is a Sierra-manufactured replacement that cross-references directly to Mercury Marine, OMC, and Mallory OEM wire sets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this part?\u003c\/strong\u003e The Sierra 18-8800-1 carries UPC 808282194307.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a difference in fitment between the 110\/120 and the 140?\u003c\/strong\u003e Yes. The MerCruiser 110 and 120 use a 153 cid L4 engine, while the MerCruiser 140 uses a 181 cid L4 engine; both are covered by the 18-8800-1 set.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434399451,"sku":"SIE-18-8800-1","price":41.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__99880.1753840690.500.750.jpg?v=1785188097"},{"product_id":"sierra-18-8802-1-spark-plug-wire-set-8-cylinder-conventional-ignition-marine-engines-replaces-volvo-penta-8757166-mercruiser-84-816761a12","title":"Sierra 18-8802-1 Spark Plug Wire Set for 350 CID 8-Cylinder Prestolite and Mallory Distributors, 1986-1992","description":"\u003cp\u003eThe Sierra 18-8802-1 is a conventional-ignition spark plug wire set built for 350 cid 8-cylinder marine engines running a Prestolite (screw down cap) or Mallory distributor from 1986 to 1992. Each wire uses a Kevlar core paired with a durable stainless steel wound conductor, delivering maximum horsepower and consistent engine performance while resisting the vibration and heat stress typical of marine engine bays. Premium silicone jacketing and boots provide high-temperature protection at the plug and distributor connections, and the terminals are corrosion-resistant stainless steel for reliable conductivity in a marine environment.\u003c\/p\u003e\u003cp\u003eThis set is part of Sierra's MAGFORCE ignition wire line, engineered to be \"Electronics Friendly\" -- it shields onboard electronic devices and electronic engine controls from RFI and EMI interference while still delivering maximum voltage to the plugs. The distributor end is moisture-proof and molded for a secure, sealed connection, and the exact-fit design is intended for straightforward installation without custom trimming or fitting.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8802-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinders:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e 350 CID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Compatibility:\u003c\/strong\u003e Prestolite (screw down cap) and Mallory\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Range:\u003c\/strong\u003e 1986-1992\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Conventional Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacketing and Boot Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Corrosion-resistant stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Cap Seal:\u003c\/strong\u003e Moisture-proof, molded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRFI\/EMI Suppression:\u003c\/strong\u003e Yes, Electronics Friendly design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.83 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194321\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e350 cid, 8-cylinder engines with a Prestolite distributor (screw down cap), 1986-1992\u003c\/li\u003e\n\u003cli\u003e350 cid, 8-cylinder engines with a Mallory distributor, 1986-1992\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCDI 631-0010\u003c\/li\u003e\n\u003cli\u003eMallory 9-28003\u003c\/li\u003e\n\u003cli\u003eMallory 9-28030\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 84-43376A12\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 84-813720A12\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 84-816761A12\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 84-816761Q12\u003c\/li\u003e\n\u003cli\u003eOMC Stern Drive 503752\u003c\/li\u003e\n\u003cli\u003eOMC Stern Drive 503755\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 8757166\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 8757166-7\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8802-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8802-1 fits 350 cid 8-cylinder marine engines equipped with either a Prestolite distributor (screw down cap) or a Mallory distributor, for the 1986 to 1992 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a conventional ignition wire set?\u003c\/strong\u003e Yes, the Sierra 18-8802-1 is a conventional ignition spark plug wire set, not a distributorless or coil-on-plug design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-8802-1 cross-reference to?\u003c\/strong\u003e It replaces CDI 631-0010, Mallory 9-28003 and 9-28030, Mercruiser Stern Drive 84-43376A12, 84-813720A12, 84-816761A12, and 84-816761Q12, OMC Stern Drive 503752 and 503755, and Volvo Penta 8757166 and 8757166-7.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8802-1 wire set weigh?\u003c\/strong\u003e The Sierra 18-8802-1 spark plug wire set weighs 1.83 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat materials are the wires made from?\u003c\/strong\u003e Each wire in the 18-8802-1 set has a Kevlar core with a stainless steel wound conductor, covered by premium silicone jacketing and boots, with corrosion-resistant stainless steel terminals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire set interfere with onboard electronics?\u003c\/strong\u003e No, the 18-8802-1 is part of Sierra's MAGFORCE line, designed to be Electronics Friendly by suppressing RFI and EMI that could otherwise disrupt electronic engine controls and other onboard devices.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8802-1 work with both Prestolite and Mallory distributors?\u003c\/strong\u003e Yes, the same 18-8802-1 part number covers 350 cid 8-cylinder engines fitted with either a Prestolite distributor (screw down cap) or a Mallory distributor from 1986 to 1992.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the distributor connection sealed against moisture?\u003c\/strong\u003e The distributor end of the 18-8802-1 set uses a moisture-proof, molded design for a secure, sealed connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-8802-1 different from a standard ignition wire set?\u003c\/strong\u003e Beyond standard voltage delivery, the 18-8802-1 adds superior RFI suppression, silicone high-temperature jacketing, and corrosion-resistant stainless steel terminals aimed at marine engine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8802-1 designed for easy installation?\u003c\/strong\u003e Yes, Sierra designed the 18-8802-1 with an exact-fit configuration intended for straightforward installation on the covered 350 cid 8-cylinder engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-8802-1 spark plug wire set?\u003c\/strong\u003e The UPC for the Sierra 18-8802-1 spark plug wire set is 808282194321.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8802-1 cross-reference to a Volvo Penta part number?\u003c\/strong\u003e Yes, the 18-8802-1 replaces Volvo Penta 8757166 and 8757166-7 among its listed cross-references.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434464987,"sku":"SIE-18-8802-1","price":64.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8802-1_lg__40202.1558140514.500.750.jpg?v=1785188222"},{"product_id":"marine-spark-plug-wire-set-for-6-cylinder-prestolite-stern-drive-replaces-mercruiser-84-816761q7-omc-503750-sierra-18-8801-1","title":"Sierra 18-8801-1 MagForce Spark Plug Wire Set for 262 cid 6-Cylinder Prestolite Ignition Engines, 1986-1992","description":"\u003cp\u003eThe Sierra 18-8801-1 is a MagForce ignition wire set built for 262 cid 6-cylinder marine engines equipped with a Prestolite distributor featuring a screw-down cap, covering the 1986 through 1992 model years. Sierra's MagForce wires are engineered to be \"Electronics Friendly,\" shielding onboard electronic devices and electronic engine controls from RFI and EMI interference while still delivering maximum voltage to the plugs. Each wire uses a Kevlar core paired with a durable stainless steel wound conductor for consistent conductivity and long service life, wrapped in premium silicone jacketing and boots for protection against high underhood and bilge temperatures. Spark plug and distributor terminals are corrosion resistant stainless steel for reliable long-term contact. The set is designed as an exact-fit replacement, so installation follows the factory wire routing without modification. This is a universal fit ignition wire set intended for the specific engine and distributor combination listed in the fitment section below, and it is backed by Sierra's Industry Leading Customer Satisfaction Warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8801-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e 262 cid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Prestolite (screw-down cap)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear Range:\u003c\/strong\u003e 1986-1992\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Prestolite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket\/Boot Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRFI\/EMI Protection:\u003c\/strong\u003e Yes (MagForce electronics-friendly design)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194314\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e262 cid, 6-cylinder engine with Prestolite distributor (screw-down cap), 1986-1992\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e84-816761Q7\u003c\/li\u003e\n\u003cli\u003e84-816761A7\u003c\/li\u003e\n\u003cli\u003e84-813720A7\u003c\/li\u003e\n\u003cli\u003e84-43376A7\u003c\/li\u003e\n\u003cli\u003e503750\u003c\/li\u003e\n\u003cli\u003e876532-3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engine does the Sierra 18-8801-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8801-1 is built for a 262 cid, 6-cylinder marine engine equipped with a Prestolite distributor that has a screw-down cap, covering the 1986 through 1992 model years.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8801-1 wire set compatible with a Delco distributor instead of Prestolite?\u003c\/strong\u003e No. The 18-8801-1 is designed specifically for the Prestolite screw-down cap distributor used on the 262 cid 6-cylinder engine from 1986-1992; engines with a Delco distributor require a different Sierra wire set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-8801-1 cross-reference?\u003c\/strong\u003e This set replaces Mercruiser stern drive numbers 84-816761Q7, 84-816761A7, 84-813720A7, and 84-43376A7, OMC number 503750, and Volvo Penta number 876532-3.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the spark plug wire core made from?\u003c\/strong\u003e The 18-8801-1 uses a Kevlar core combined with a stainless steel wound conductor, giving the wire durability along with strong conductivity for engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires interfere with onboard electronics?\u003c\/strong\u003e No. Sierra's MagForce design used in the 18-8801-1 is built to be electronics friendly, suppressing RFI and EMI so it does not disrupt electronic engine controls or other onboard electronic devices while still delivering full voltage to the plugs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cylinders does the 18-8801-1 wire set cover?\u003c\/strong\u003e It is a 6-cylinder set, matching the 262 cid engine's cylinder count.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the boots and jacketing made of on this wire set?\u003c\/strong\u003e The 18-8801-1 uses premium silicone jacketing and boots, which provide protection against high underhood temperatures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals on the 18-8801-1 corrosion resistant?\u003c\/strong\u003e Yes, the spark plug and distributor terminals are made of corrosion resistant stainless steel for reliable long-term electrical contact in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8801-1 wire set weigh?\u003c\/strong\u003e The 18-8801-1 spark plug wire set weighs 1.4 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8801-1 an exact-fit replacement or a universal wire kit?\u003c\/strong\u003e It is manufactured to an exact-fit design for easy installation on the specified 262 cid Prestolite-equipped engine, and Sierra lists it with a universal fit type for the covered application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-8801-1 come with a warranty?\u003c\/strong\u003e Yes, the 18-8801-1 is covered under Sierra's Industry Leading Customer Satisfaction Warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years does the 18-8801-1 cover for the 262 cid engine?\u003c\/strong\u003e It covers model years 1986 through 1992 for the 262 cid, 6-cylinder engine with a Prestolite screw-down cap distributor.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434563291,"sku":"SIE-18-8801-1","price":57.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8801-1__99543.1739459110.500.750.jpg?v=1785188864"},{"product_id":"sierra-18-8807-1-magforce-marine-spark-plug-wire-set-replaces-omc-503747-fits-omc-cobra-sterndrive-4-cylinder-engines-white","title":"Sierra 18-8807-1 Spark Plug Wire Set, Replaces OMC 503747, for OMC Sterndrive\/Cobra 2.3L 4-Cylinder Engines","description":"\u003cp\u003eThe Sierra 18-8807-1 is a premium MagForce spark plug wire set engineered for OMC Sterndrive\/Cobra stern drive engines. Built with a Kevlar core for durability and long service life, the wires use a durable stainless steel wound conductor to support maximum horsepower and engine performance. Premium silicone jacketing and boots provide high-temperature protection at the plug and distributor connections, while the construction delivers superior RFI suppression for engines running sensitive electronic systems. Corrosion-resistant stainless steel spark plug and distributor terminals maintain reliable conductivity in the marine environment. This wire set is designed to replace OMC 503747 and is the correct plug wire set for OMC Sterndrive\/Cobra 2.3L 4-cylinder engines from 1987 to 1990. The set includes one full set of wires sized for a 4-cylinder engine, ready to install as a direct replacement for worn, cracked, or misfiring original wires.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8807-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Kevlar, Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound conductor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Corrosion resistant stainless steel spark plug and distributor terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.12 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Count:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e OMC 503747\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC Sterndrive\/Cobra 2.3L, 4-cylinder, 1987-1990\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 503747\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8807-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8807-1 is designed for OMC Sterndrive\/Cobra 2.3L, 4-cylinder engines built from 1987 to 1990.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set replace OMC 503747?\u003c\/strong\u003e Yes, the Sierra 18-8807-1 is a direct replacement for OMC part number 503747.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire set made of?\u003c\/strong\u003e It is built with a Kevlar core and a durable stainless steel wound conductor, wrapped in premium silicone jacketing and boots for high-temperature protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires are in the 18-8807-1 set?\u003c\/strong\u003e The set is sized for a 4-cylinder engine, providing one wire per cylinder to match the OMC Sterndrive\/Cobra 2.3L application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8807-1 wire set weigh?\u003c\/strong\u003e This Sierra spark plug wire set weighs 1.12 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals corrosion resistant?\u003c\/strong\u003e Yes, the 18-8807-1 uses corrosion resistant stainless steel spark plug and distributor terminals for reliable conductivity in marine conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set help with RFI interference?\u003c\/strong\u003e Yes, the silicone jacketing and construction of the 18-8807-1 provide superior RFI suppression, which benefits engines with sensitive electronic systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8807-1 an OEM or aftermarket part?\u003c\/strong\u003e The 18-8807-1 is a Sierra-branded aftermarket wire set manufactured as a direct replacement for OMC 503747.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I replace my spark plug wires with the 18-8807-1?\u003c\/strong\u003e Cracked, worn, or degraded silicone jacketing on original wires can cause misfires and RFI interference; the 18-8807-1 restores proper spark delivery with new Kevlar-core, stainless steel wound wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-8807-1 on a 6-cylinder or 8-cylinder OMC engine?\u003c\/strong\u003e No, the 18-8807-1 is sized specifically for the 4-cylinder 2.3L OMC Sterndrive\/Cobra application; other cylinder counts require a different Sierra plug wire set.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434596059,"sku":"SIE-18-8807-1","price":47.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8807-1__30286.1737892603.500.750.jpg?v=1785187976"},{"product_id":"sierra-18-8806-1-magforce-marine-ignition-wire-set-for-omc-cobra-sterndrive-inboard-engines-8mm-silicone-spark-plug-wires","title":"Sierra 18-8806-1 MAGFORCE Ignition Wiring Plug Set for OMC\/Cobra Engines","description":"\u003cp\u003eThe Sierra 18-8806-1 MAGFORCE Ignition Wiring Plug Set is a marine spark plug wire set engineered for OMC\/Cobra engines. Sierra's MAGFORCE wires are built \"electronics friendly,\" shielding onboard electronic devices and electronic engine controls from RFI (radio frequency interference) and EMI (electro-magnetic interference) while still delivering maximum voltage to the plugs. A mag\/wire wound core is the key to this interference-free performance, and an exact-fit design allows for straightforward installation without modification.\u003c\/p\u003e\u003cp\u003eConstruction is built for the marine environment: moisture-proof, molded distributor insulators keep contaminants out of the connection points, while a high-quality conductive center carrier reinforcement maintains conductor integrity over time. The conductor itself is wrapped in a high tensile strength membrane for durability and heat resistance, further reinforced with an innovative nylon reinforcing tape for added strength. An 8mm silicone jacket protects the conductor up to 500 degrees Fahrenheit, and high-temperature, pre-greased silicone insulators ease installation and improve the heat seal at each connection. Posi-Lock stainless steel terminals resist corrosion, an important feature for wiring exposed to a marine environment.\u003c\/p\u003e\u003cp\u003eThis set is designed for OMC\/Cobra engines and is covered under Sierra's Industry Leading Customer Satisfaction Warranty.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8806-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Wiring Plug Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Nylon, Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 8 Millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.77 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Terminal Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type:\u003c\/strong\u003e Spark Plug Wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194352\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC\/Cobra Engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMallory No. 9-28026\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8806-1 ignition wiring plug set fit?\u003c\/strong\u003e The Sierra 18-8806-1 MAGFORCE Ignition Wiring Plug Set is designed for OMC\/Cobra engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wiring set protect electronics from interference?\u003c\/strong\u003e Yes, the 18-8806-1 set uses a mag\/wire wound core that delivers maximum voltage while shielding electronic devices and electronic engine controls from RFI and EMI.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire diameter of the 18-8806-1 plug set?\u003c\/strong\u003e The Sierra 18-8806-1 ignition wires measure 8 millimeters in diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much heat can the wire jacket withstand?\u003c\/strong\u003e The silicone jacket on the 18-8806-1 wiring set protects the conductor up to 500 degrees Fahrenheit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there an OEM equivalent number for this part?\u003c\/strong\u003e The Sierra 18-8806-1 corresponds to Mallory number 9-28026.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the terminals made of?\u003c\/strong\u003e The 18-8806-1 set uses Posi-Lock stainless steel terminals, which resist corrosion in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the distributor insulators moisture-resistant?\u003c\/strong\u003e Yes, the Sierra 18-8806-1 set includes moisture-proof, molded distributor insulators to keep out water and contaminants.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8806-1 wiring plug set weigh?\u003c\/strong\u003e This Sierra ignition wiring plug set weighs 1.77 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat reinforces the conductor for durability?\u003c\/strong\u003e A high-quality conductive center carrier and a high tensile strength membrane reinforce the conductor in the 18-8806-1 set, with nylon reinforcing tape adding further strength.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an exact-fit replacement design?\u003c\/strong\u003e Yes, the Sierra 18-8806-1 is built with an exact-fit design intended for easy installation on OMC\/Cobra engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this product come with a warranty?\u003c\/strong\u003e The 18-8806-1 wiring plug set is covered under Sierra's Industry Leading Customer Satisfaction Warranty, which covers defects in workmanship and materials for the useful life of the product.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector type is used on this wiring set?\u003c\/strong\u003e The Sierra 18-8806-1 uses a terminal block connector type.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434661595,"sku":"SIE-18-8806-1","price":85.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8806-1__64693.1722510755.500.750.jpg?v=1785188235"},{"product_id":"sierra-18-8804-1-marine-ignition-wire-set-replaces-mercury-84-813720a2-fits-mercruiser-thunderbolt-v8-8-cyl-sterndrive-inboard","title":"Sierra Ignition Wire Set 18-8804-1 for MerCruiser 260 350 MAG and 300 320 EFI 350 V-8 Electronic Distributor","description":"\u003cp\u003eThe Sierra 18-8804-1 is an ignition wire set built for MerCruiser stern drive and inboard V-8 engines equipped with a standard-rotation electronic distributor. It supplies the coil lead and spark plug leads needed to deliver a reliable spark path from the distributor to each cylinder, and it is designed for electronic distributor ignition systems, excluding Thunderbolt ignition setups. The set includes one coil lead measuring 12 inches along with spark plug leads in four lengths (30, 35, 40, and 45 inches) so each cylinder position gets a properly sized lead rather than a one-size-fits-all wire. Leads use lead-based conductor construction typical of marine ignition wiring for consistent conductivity and resistance to the vibration and heat found in an engine compartment.\u003c\/p\u003e\u003cp\u003eThis wire set fits MerCruiser 260 and 350 MAG V-8 engines built in the 1982-1994 model years within serial number range 6218462 through F600999, as well as MerCruiser 300 and 320 EFI 350\/V-8 engines built in the 1985-1989 model years within serial number range A543604 through C622418. Confirm your engine model and serial number against these ranges before ordering, since ignition wiring is engine-specific and the wrong set will not seat or route correctly.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8804-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition wire set (wiring and plug set)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Compatibility:\u003c\/strong\u003e Electronic distributor, standard rotation, excluding Thunderbolt ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Lead Length:\u003c\/strong\u003e 12 inches (1 lead)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Lead Lengths:\u003c\/strong\u003e 30 inches, 35 inches, 40 inches, 45 inches (2 leads each length)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 2.75 x 7.12 x 10.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.94 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 260, 350 MAG V-8, 1982-1994, serial number range 6218462 - F600999\u003c\/li\u003e\n\u003cli\u003eMerCruiser 300, 320 EFI 350\/V-8, 1985-1989, serial number range A543604 - C622418\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8804-1 ignition wire set fit?\u003c\/strong\u003e This wire set fits MerCruiser 260 and 350 MAG V-8 engines from the 1982-1994 model years within serial number range 6218462 through F600999, and MerCruiser 300 and 320 EFI 350\/V-8 engines from the 1985-1989 model years within serial number range A543604 through C622418.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-8804-1 work with a Thunderbolt ignition system?\u003c\/strong\u003e No. The Sierra 18-8804-1 is built for standard-rotation electronic distributor ignition and specifically excludes Thunderbolt ignition systems, so it should not be used on engines with Thunderbolt ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug leads come in this set, and how long are they?\u003c\/strong\u003e The 18-8804-1 set includes spark plug leads in four lengths: 30 inches, 35 inches, 40 inches, and 45 inches, with two leads supplied at each length to cover a V-8 cylinder layout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the kit include a coil lead?\u003c\/strong\u003e Yes, the Sierra 18-8804-1 includes one coil lead measuring 12 inches in addition to the spark plug leads.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the ignition leads made of?\u003c\/strong\u003e The leads in the 18-8804-1 wire set use lead-based conductor construction, which is standard for marine ignition wiring exposed to engine heat and vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8804-1 wire set weigh?\u003c\/strong\u003e The Sierra 18-8804-1 ignition wire set weighs 1.94 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the packaged dimensions of this ignition wire set?\u003c\/strong\u003e The Sierra 18-8804-1 measures 2.75 x 7.12 x 10.5 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my MerCruiser engine is in the right serial number range for this part?\u003c\/strong\u003e Check your engine's serial number tag against the ranges listed for the 18-8804-1: 6218462 through F600999 for the 260\/350 MAG V-8, or A543604 through C622418 for the 300\/320 EFI 350\/V-8. If your serial number falls outside both ranges, this part is not the correct match.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full ignition wire set or just replacement plug wires?\u003c\/strong\u003e The 18-8804-1 is a complete wiring and plug lead set, including both the coil lead and the full set of spark plug leads needed for the engine, not a single replacement wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this wire set be used on engines outside the listed serial number ranges?\u003c\/strong\u003e Fitment for the Sierra 18-8804-1 is defined by the specific engine models and serial number ranges listed, so it should only be used on MerCruiser 260\/350 MAG or 300\/320 EFI 350\/V-8 engines that fall within those ranges.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434694363,"sku":"SIE-18-8804-1","price":62.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__17345.1772450817.500.750.jpg?v=1785188720"},{"product_id":"sierra-18-8811-1-marine-spark-plug-wire-set-4-cylinder-est-electronic-ignition-for-mercury-mercruiser-and-omc-stern-drive-engines","title":"Sierra 18-8811-1 MagForce Spark Plug Wire Set, 4 Cylinder EST Electronic Ignition, Mercury Marine and OMC Engines","description":"\u003cp\u003eThe Sierra 18-8811-1 MagForce spark plug wire set is a 4 cylinder wire set built for EST electronic ignition systems on Mercury Marine and OMC engines. Each wire uses a Kevlar core for long-term durability combined with a stainless steel wound conductor that supports maximum horsepower and consistent engine performance. The wires are covered in premium silicone jacketing with silicone boots, giving the set high temperature protection where heat exposure around the engine block and exhaust is greatest. Superior RFI suppression is built into the wire construction, which helps protect sensitive onboard electronic systems from ignition interference, an important consideration on engines running EST electronic ignition. Corrosion resistant stainless steel spark plug and distributor terminals maintain strong conductivity in the marine environment, where moisture and salt exposure accelerate terminal corrosion on lesser wire sets. The set includes one complete wiring and plug set sized for a 4 cylinder configuration. This is a direct fit replacement wire set for the applicable Mercury Marine and OMC 4 cylinder engines using EST electronic ignition, restoring reliable spark delivery without re-engineering the ignition harness.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8811-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 4 Cylinder, EST Electronic Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Mercury Marine and OMC Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless Steel Wound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacketing and Boots:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Corrosion Resistant Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Spark Plug, Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 9 x 7.25 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.87 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194406\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMallory Cross Reference:\u003c\/strong\u003e 9-28028\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for 4 cylinder Mercury Marine and OMC engines equipped with EST electronic ignition.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eCross references to Mallory part number 9-28028.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8811-1 spark plug wire set fit?\u003c\/strong\u003e It is built for 4 cylinder Mercury Marine and OMC engines running EST electronic ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8811-1 set?\u003c\/strong\u003e The set is a complete 4 cylinder wiring and plug set, sized as one unit for the full ignition harness rather than sold as individual wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there an OEM or competitor cross reference for part 18-8811-1?\u003c\/strong\u003e Yes, Sierra part 18-8811-1 cross references to Mallory part number 9-28028.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the conductor made from in this wire set?\u003c\/strong\u003e The 18-8811-1 set uses a stainless steel wound conductor around a Kevlar core, which is built for maximum horsepower and consistent engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires hold up to engine heat?\u003c\/strong\u003e Premium silicone jacketing and silicone boots on the 18-8811-1 set provide high temperature protection in areas of the engine bay where heat exposure is greatest.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo these spark plug wires cause interference with onboard electronics?\u003c\/strong\u003e No, the 18-8811-1 MagForce set includes superior RFI suppression to protect sensitive electronic systems from ignition interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the terminal ends made of on the 18-8811-1 wire set?\u003c\/strong\u003e Corrosion resistant stainless steel spark plug and distributor terminals are used, maintaining strong conductivity in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the packaged 18-8811-1 wire set?\u003c\/strong\u003e The set measures 9 x 7.25 x 3 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8811-1 spark plug wire set weigh?\u003c\/strong\u003e It weighs 0.87 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8811-1 set genuine Sierra or aftermarket?\u003c\/strong\u003e It is a genuine Sierra MagForce spark plug wire set, part number 18-8811-1, not a generic aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-8811-1 set?\u003c\/strong\u003e One complete wiring and plug set for a 4 cylinder EST electronic ignition engine is included.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434727131,"sku":"SIE-18-8811-1","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8811-1_lg__37271.1558132952.500.750.jpg?v=1785188135"},{"product_id":"marine-spark-plug-wire-lead-12-for-johnson-evinrude-outboards-replaces-omc-582365-sierra-18-8818-1-magforce","title":"Sierra 18-8818-1 Spark Plug Wire Lead, Replaces OMC 582365, 12 Inch, Johnson\/Evinrude Outboard","description":"\u003cp\u003eThe Sierra 18-8818-1 is a MagForce spark plug wire lead built for Johnson\/Evinrude outboard engines. It carries current from the coil or distributor to the spark plug through a Kevlar-reinforced core wrapped in a durable stainless steel wound conductor, giving the wire the strength to resist heat, vibration, and corrosion over long service life.\u003c\/p\u003e\u003cp\u003eThe conductive center is carrier reinforced to keep the conductor path intact under continued flexing and engine heat, while premium silicone jacketing and boots provide high-temperature protection at both ends of the wire. The stainless steel wound conductor also delivers superior RFI suppression, protecting sensitive onboard electronics and instrumentation from ignition interference. Spark plug and distributor terminals are made of corrosion-resistant stainless steel for reliable conductivity at every connection point.\u003c\/p\u003e\u003cp\u003eThis wire lead measures 12 inches in length and is sold as a single wire, making it a direct fit for replacing a worn or damaged lead on Johnson\/Evinrude outboard ignition systems. It replaces OMC 582365 and is backed by Sierra's warranty coverage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8818-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Material:\u003c\/strong\u003e Stainless Steel (wound)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket\/Boot Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.11 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194468\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 582365\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-8818-1 replace?\u003c\/strong\u003e The 18-8818-1 replaces OMC 582365, so it is a direct swap for that original spark plug wire lead on applicable Johnson\/Evinrude outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is this spark plug wire?\u003c\/strong\u003e It measures 12 inches in length, sized for direct replacement of a single spark plug wire lead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire's core made of?\u003c\/strong\u003e A Kevlar core runs through the 18-8818-1, chosen for durability and long service life under continuous engine heat and vibration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire cause radio or electronics interference?\u003c\/strong\u003e No. The stainless steel wound conductor in the 18-8818-1 provides RFI suppression, which reduces ignition interference with sensitive onboard electronics.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the 18-8818-1 designed for?\u003c\/strong\u003e This Sierra wire lead is designed for Johnson\/Evinrude outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-8818-1 is a genuine Sierra MagForce part, sold under Sierra's own part number and backed by Sierra's warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the spark plug and distributor terminals?\u003c\/strong\u003e The terminals on the 18-8818-1 are corrosion-resistant stainless steel, chosen to maintain conductivity in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in this listing?\u003c\/strong\u003e The 18-8818-1 is sold as a single spark plug wire lead, not a full wire set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat protects the wire from engine heat?\u003c\/strong\u003e Premium silicone jacketing and boots cover the 18-8818-1, providing high-temperature protection along the wire and at its terminal ends.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8818-1 weigh?\u003c\/strong\u003e This spark plug wire lead weighs 0.11 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the conductive center resist wear from flexing?\u003c\/strong\u003e Yes, the conductive center of the 18-8818-1 is carrier reinforced to keep the conductor intact under repeated flexing and heat cycling.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434759899,"sku":"SIE-18-8818-1","price":14.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8818-1__76736.1722498937.500.750.jpg?v=1785189045"},{"product_id":"sierra-18-8813-1-magforce-marine-spark-plug-wire-set-replaces-volvo-penta-875571-4-cylinder-stern-drive-ignition-7mm","title":"Sierra 18-8813-1 Spark Plug Wire Set, Replaces Volvo Penta 875571, for AQ120B\/AQ125\/AQ131\/AQ140\/AQ145\/AQ151 4-Cylinder Engines","description":"\u003cp\u003eThe Sierra 18-8813-1 is a MagForce premium marine spark plug wire set built for 4-cylinder Volvo Penta stern drive engines. Each wire uses a Kevlar core paired with a durable stainless steel wound conductor, giving the set the strength to handle continuous marine vibration and heat cycling while supporting reliable spark delivery for maximum horsepower and engine performance. The wires are covered in premium silicone jacketing with silicone boots, providing high temperature protection at the spark plug and distributor connections where heat exposure is greatest. Superior RFI suppression is built into the construction, reducing ignition-generated interference so that sensitive onboard electronics and marine electronics are not disrupted during operation.\u003c\/p\u003e\u003cp\u003eCorrosion resistant stainless steel is used at both the spark plug and distributor terminals, maintaining strong electrical conductivity even in a saltwater and high-humidity marine environment. The set is sized with a 7 millimeter wire diameter and is designed for conventional ignition systems on 4-cylinder engines. The 18-8813-1 is a direct fit for a range of Volvo Penta AQ-series stern drive engines, replacing the original Volvo Penta ignition wiring while adding upgraded materials over typical wear-prone factory wiring. It ships as a complete one-set unit ready to install on a compatible 4-cylinder Volvo Penta engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8813-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Conventional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 7 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor:\u003c\/strong\u003e Stainless steel wound conductor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket and Boot Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Corrosion resistant stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Spark plug terminals and ignition system connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.93 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194413\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta AQ120B, 4-cylinder, 1977 to 1980\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ125A\/B, 4-cylinder, 1981 to 1985\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ131A\/B\/C\/D, 4-cylinder, 1985 to 1989\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ140A, 4-cylinder, 1975 to 1979\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ145A\/B, 4-cylinder, 1979 to 1985\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ151A\/B\/C, 4-cylinder, 1985 to 1989\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta 875571\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 875571-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat Volvo Penta engines does the Sierra 18-8813-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8813-1 fits Volvo Penta AQ120B (1977 to 1980), AQ125A\/B (1981 to 1985), AQ131A\/B\/C\/D (1985 to 1989), AQ140A (1975 to 1979), AQ145A\/B (1979 to 1985), and AQ151A\/B\/C (1985 to 1989), all 4-cylinder engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set replace Volvo Penta 875571?\u003c\/strong\u003e Yes, the Sierra 18-8813-1 replaces Volvo Penta 875571, as well as OEM number 875571-2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire diameter on this set?\u003c\/strong\u003e 7 millimeters, matched to the conventional ignition systems used on the compatible 4-cylinder Volvo Penta engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat materials is the 18-8813-1 wire set made from?\u003c\/strong\u003e It combines a Kevlar core with a stainless steel wound conductor, covered by premium silicone jacketing and silicone boots.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does it use stainless steel terminals?\u003c\/strong\u003e Corrosion resistant stainless steel spark plug and distributor terminals keep the 18-8813-1 conductive in a marine environment where standard terminals would corrode.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the wire set reduce electronic interference?\u003c\/strong\u003e Yes, the 18-8813-1 includes RFI suppression to protect sensitive onboard electronics from ignition interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cylinders is this wire set designed for?\u003c\/strong\u003e This is a 4-cylinder wire set, matching the AQ120B, AQ125, AQ131, AQ140, AQ145, and AQ151 Volvo Penta engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition type is the 18-8813-1 compatible with?\u003c\/strong\u003e Conventional ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8813-1 weigh?\u003c\/strong\u003e 0.93 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8813-1 a genuine Volvo Penta part or aftermarket?\u003c\/strong\u003e It is a Sierra-branded MagForce wire set engineered as a replacement for Volvo Penta 875571 and 875571-2, not an original Volvo Penta part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the wire set components?\u003c\/strong\u003e Each component of the 18-8813-1 measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when ordering the 18-8813-1?\u003c\/strong\u003e One complete spark plug wire set for a 4-cylinder Volvo Penta engine.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434792667,"sku":"SIE-18-8813-1","price":185.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8813-1_lg__34006.1558133111.500.750.jpg?v=1785188199"},{"product_id":"marine-spark-plug-wire-lead-18-8816-1-replaces-omc-582365-for-johnson-evinrude-outboards-6-in-white","title":"Sierra 18-8816-1 Spark Plug Wire, Replaces OMC 582365, Johnson\/Evinrude, 6 Inch, White","description":"\u003cp\u003eThe Sierra 18-8816-1 is a premium replacement spark plug wire lead engineered for Johnson\/Evinrude outboard applications. This 6 inch wire uses a Kevlar-reinforced core paired with a durable stainless steel wound conductor, giving the lead the strength to handle continuous engine vibration and heat without breaking down. A premium silicone jacket and matching silicone boots seal out moisture and protect against high engine bay temperatures, while the construction provides superior RFI suppression to keep sensitive onboard electronics running cleanly. Both ends terminate in corrosion resistant stainless steel spark plug and distributor terminals, which maintain solid electrical conductivity even in the humid, salt-exposed marine environment where these outboards operate.\u003c\/p\u003e\u003cp\u003eThis wire is built as a direct functional replacement for OMC 582365, so it installs using the same connection points as the original equipment wire it replaces. It is supplied as a single wire lead, finished in white, and is part of Sierra's outboard ignition wire program for Johnson\/Evinrude engines.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8816-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Johnson\/Evinrude\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Wires:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel, Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Weight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 7 x 6 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194444\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 582365\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-8816-1 replace?\u003c\/strong\u003e It replaces OMC 582365, so the Sierra 18-8816-1 spark plug wire installs as a direct functional substitute for that original equipment wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this spark plug wire fit my outboard engine?\u003c\/strong\u003e The Sierra 18-8816-1 is built for Johnson\/Evinrude outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the Sierra 18-8816-1 spark plug wire?\u003c\/strong\u003e This wire measures 6 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire made of?\u003c\/strong\u003e The Sierra 18-8816-1 uses a Kevlar-reinforced core with a stainless steel wound conductor, finished with a premium silicone jacket and boots.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this spark plug wire?\u003c\/strong\u003e It is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires are included?\u003c\/strong\u003e The Sierra 18-8816-1 is supplied as a single spark plug wire lead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminal ends corrosion resistant?\u003c\/strong\u003e Yes, the spark plug and distributor terminals on the 18-8816-1 are made of corrosion resistant stainless steel for reliable conductivity in marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8816-1 genuine OEM or aftermarket?\u003c\/strong\u003e It is a Sierra aftermarket wire engineered to replace the OEM OMC 582365 wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire help reduce electrical interference?\u003c\/strong\u003e Yes, the 18-8816-1 provides superior RFI suppression to protect sensitive onboard electronic systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8816-1 weigh?\u003c\/strong\u003e It weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this part?\u003c\/strong\u003e The UPC for the Sierra 18-8816-1 spark plug wire is 808282194444.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wire compatible with other engine brands besides Johnson\/Evinrude?\u003c\/strong\u003e The Sierra 18-8816-1 is specified for Johnson\/Evinrude outboard applications.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434858203,"sku":"SIE-18-8816-1","price":16.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-8816_lg__07400.1558133266.500.750.jpg?v=1785188864"},{"product_id":"sierra-18-8815-1-marine-spark-plug-wire-set-for-evinrude-johnson-outboards-4-in-kevlar-core-ignition-wires","title":"Sierra 18-8815-1 Wiring Plug Set - Ignition Wires for Evinrude Outboard Engines","description":"\u003cp\u003eThe Sierra 18-8815-1 Wiring Plug Set is an ignition wire set built for Evinrude outboard engines. Each wire uses a stainless steel wound conductor for consistent conductivity and reliable engine performance, paired with a Kevlar core that adds durability and long service life under the vibration and heat typical of marine ignition systems. The spark plug and distributor terminals are made of corrosion resistant stainless steel, which helps maintain a solid electrical connection in the marine environment where moisture and salt exposure are constant concerns. Premium silicone jacketing and boots wrap each wire and terminal connection, providing high-temperature protection close to the engine block and exhaust components. The set also delivers superior RFI suppression, reducing electrical interference so onboard electronics and sensitive instrumentation run without disruption. Each wire measures 4 inches (101.6 mm) in length. This wiring plug set is a direct fit for Evinrude outboard engines, making it a straightforward replacement when ignition wires have degraded from heat, vibration, or corrosion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8815-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194437\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 4 inches (101.6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.09 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 8 x 6 x 0.03 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Material:\u003c\/strong\u003e Stainless steel wound conductor with Kevlar core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel (spark plug and distributor ends)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacketing:\u003c\/strong\u003e Silicone, high-temperature rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeature:\u003c\/strong\u003e RFI suppression\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThis wiring plug set is designed for Evinrude outboard engines.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8815-1 wiring plug set fit?\u003c\/strong\u003e The Sierra 18-8815-1 wiring plug set is designed for Evinrude outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long are the wires in this set?\u003c\/strong\u003e Each wire in the Sierra 18-8815-1 set measures 4 inches (101.6 mm) in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the spark plug and distributor terminals made of?\u003c\/strong\u003e Corrosion resistant stainless steel is used for both the spark plug and distributor terminals on the Sierra 18-8815-1 wiring plug set, which helps maintain conductivity in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the conductor made from?\u003c\/strong\u003e A stainless steel wound conductor is used, which supports maximum horsepower and consistent engine performance in the Sierra 18-8815-1 ignition wire set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set have any core reinforcement for durability?\u003c\/strong\u003e Yes, the Sierra 18-8815-1 set uses a Kevlar core, which adds durability and helps extend the service life of each wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wire set protected against high engine temperatures?\u003c\/strong\u003e Premium silicone jacketing and boots on the Sierra 18-8815-1 provide high-temperature protection for the wires and terminal connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this ignition wire set cause electrical interference with onboard electronics?\u003c\/strong\u003e No, the Sierra 18-8815-1 wiring plug set includes superior RFI suppression, reducing interference with sensitive electronic systems onboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8815-1 wiring plug set weigh?\u003c\/strong\u003e This wiring plug set weighs 0.09 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the Sierra 18-8815-1 wiring plug set?\u003c\/strong\u003e The Sierra 18-8815-1 is a complete wiring plug set with terminals, boots, and silicone-jacketed wires ready to install on a compatible Evinrude outboard engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8815-1 a genuine Sierra part?\u003c\/strong\u003e Yes, the 18-8815-1 is manufactured and sold under the Sierra brand as a wiring plug set for Evinrude outboard engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434890971,"sku":"SIE-18-8815-1","price":16.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8815-1__80474.1558321376.500.750.jpg?v=1785188302"},{"product_id":"sierra-18-8819-1-magforce-7-marine-spark-plug-wire-lead-for-mercury-mariner-and-chrysler-force-outboards","title":"Sierra 18-8819-1 MagForce 7 Inch 8mm Spark Plug Wire Lead for Mercury\/Mariner and Chrysler Force Engines","description":"\u003cp\u003eThe Sierra 18-8819-1 is a 7 inch, 8mm marine spark plug wire lead built for Mercury\/Mariner and Chrysler Force engines. It is part of Sierra's MagForce line of ignition wires, engineered to be electronics friendly so it protects onboard electronic devices and electronic engine controls from RFI and EMI while still delivering maximum voltage to the spark plug. The wire uses a Kevlar-reinforced core paired with a stainless steel wound conductor to support strong horsepower and consistent engine performance, and it is wrapped in a silicone jacket with silicone boots that hold up under high underhood and engine-bay temperatures.\u003c\/p\u003e\u003cp\u003eCorrosion resistance is a key feature of this lead: Posi-lock stainless steel spark plug and distributor terminals resist corrosion and maintain solid electrical conductivity over time in the marine environment. The exact-fit design is intended for straightforward installation without modification. This is a single 7 inch, 8mm wire lead rather than a full ignition wire set, making it suited for replacing an individual damaged or deteriorated lead.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8819-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Length:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore:\u003c\/strong\u003e Kevlar-reinforced core with stainless steel wound conductor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel (Posi-lock)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRFI\/EMI Suppression:\u003c\/strong\u003e Yes, Electronics Friendly MagForce design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194475\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mariner engines\u003c\/li\u003e\n\u003cli\u003eChrysler Force engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNo OEM cross-reference numbers are listed for this part number.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat length and gauge is the Sierra 18-8819-1 spark plug wire?\u003c\/strong\u003e The Sierra 18-8819-1 is a 7 inch, 8mm spark plug wire lead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does the 18-8819-1 spark plug wire fit?\u003c\/strong\u003e This wire is designed for Mercury\/Mariner and Chrysler Force engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8819-1 come as a single wire or a full set?\u003c\/strong\u003e It is a single 7 inch spark plug wire lead, not a complete ignition wire set, so it is intended for replacing one individual wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the core made of in this Sierra spark plug wire?\u003c\/strong\u003e The 18-8819-1 uses a Kevlar-reinforced core with a stainless steel wound conductor for durability and consistent engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this spark plug wire interfere with onboard electronics?\u003c\/strong\u003e No, the 18-8819-1 is part of Sierra's MagForce line, which is designed to be Electronics Friendly, suppressing RFI and EMI so it does not interfere with electronic devices or electronic engine controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the terminals made from on the 18-8819-1?\u003c\/strong\u003e The terminals are Posi-lock stainless steel, which resists corrosion and maintains reliable conductivity in the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8819-1 spark plug wire weigh?\u003c\/strong\u003e The 18-8819-1 spark plug wire weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8819-1 wire resistant to high heat?\u003c\/strong\u003e Yes, the wire and boots use silicone jacketing designed for high-temperature protection in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there OEM cross-reference numbers for the 18-8819-1?\u003c\/strong\u003e No OEM cross-reference number is listed for the Sierra 18-8819-1 spark plug wire lead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-8819-1 straightforward?\u003c\/strong\u003e Yes, the 18-8819-1 uses an exact-fit design intended for easy installation in place of the original wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The Sierra 18-8819-1 spark plug wire lead has UPC 808282194475.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434923739,"sku":"SIE-18-8819-1","price":17.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__94422.1753840685.500.750.jpg?v=1785187976"},{"product_id":"marine-spark-plug-wire-set-for-mercruiser-sterndrive-6-cylinder-replaces-84-816761a8-sierra-magforce","title":"Sierra 18-8809-1 MagForce Spark Plug Wire Set for 6-Cylinder Mercruiser Sterndrive Engines","description":"\u003cp\u003eThe Sierra 18-8809-1 is a MagForce spark plug wire set built for 6-cylinder Mercruiser sterndrive engines. Each wire uses a Kevlar-reinforced core paired with a stainless steel wound conductor, a combination chosen to deliver consistent electrical conductivity while standing up to the vibration, heat, and moisture found in a marine engine compartment. The wires are jacketed in silicone with silicone boots at each connection point, protecting against high underhood temperatures while also providing superior RFI suppression so the set will not interfere with sensitive onboard electronics such as fuel injection and ignition control modules.\u003c\/p\u003e\u003cp\u003eConnection points are finished with corrosion-resistant stainless steel spark plug and distributor terminals, maintaining strong electrical contact over time in a saltwater or freshwater environment. The set is designed for conventional ignition systems and is intended for 6-cylinder Mercruiser sterndrive applications. As with any ignition component, confirm fitment against your engine's specifications before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8809-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicone, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Conventional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.11 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194383\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 84-816761Q8, 84-816761A8, 84-813720A8, 84-43376A8\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003e6-cylinder Mercruiser sterndrive engines with conventional ignition systems.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e84-816761Q8\u003c\/li\u003e\n\u003cli\u003e84-816761A8\u003c\/li\u003e\n\u003cli\u003e84-813720A8\u003c\/li\u003e\n\u003cli\u003e84-43376A8\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8809-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8809-1 is built for 6-cylinder Mercruiser sterndrive engines running a conventional ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8809-1 wire set a direct replacement for OEM Mercruiser wires?\u003c\/strong\u003e Yes, it cross-references to Mercruiser stern drive part numbers 84-816761Q8, 84-816761A8, 84-813720A8, and 84-43376A8, so it installs as a direct replacement for those OEM sets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the wires made from?\u003c\/strong\u003e Each wire in the Sierra 18-8809-1 set combines a Kevlar core with a stainless steel wound conductor, wrapped in a silicone jacket with silicone boots.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cylinders does this wire set cover?\u003c\/strong\u003e This set is configured for 6-cylinder engines, matching the cylinder count of the Mercruiser sterndrive engines it is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires cause interference with onboard electronics?\u003c\/strong\u003e No, the 18-8809-1 set is designed with superior RFI suppression specifically to avoid interfering with sensitive electronic systems on the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals on this wire set corrosion resistant?\u003c\/strong\u003e Both the spark plug end and distributor end terminals on the 18-8809-1 are stainless steel, chosen for corrosion resistance and consistent conductivity in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition type is this wire set compatible with?\u003c\/strong\u003e Sierra 18-8809-1 is built for conventional ignition systems, not electronic or coil-on-plug setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8809-1 spark plug wire set weigh?\u003c\/strong\u003e The complete set weighs 1.11 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires are included in the set?\u003c\/strong\u003e The Sierra 18-8809-1 is sold as one complete 6-cylinder wire set, listed as 1 item.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the silicone jacketing hold up to engine heat?\u003c\/strong\u003e Yes, the silicone jacketing and boots on the 18-8809-1 are designed for high-temperature protection in the engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this part?\u003c\/strong\u003e The Sierra 18-8809-1 spark plug wire set carries UPC 808282194383.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434956507,"sku":"SIE-18-8809-1","price":59.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8809-1__00610.1739458888.500.750.jpg?v=1785188920"},{"product_id":"sierra-18-8820-1-magforce-marine-spark-plug-wire-set-for-omc-volvo-penta-v8-sterndrive-engines-delco-est-efi-ignition","title":"Sierra 18-8820-1 Spark Plug Wire Set, Ford HEI, for OMC 5.0L and 5.8L 8-Cylinder Engines 1993-1996","description":"\u003cp\u003eThe Sierra 18-8820-1 is an 8-cylinder spark plug wire set built for OMC sterndrive engines equipped with a Ford HEI distributor, covering the 5.0L (Ford) and 5.8L engine applications from 1993 to 1996. Each set includes individually sized wires so cylinder-to-cylinder routing matches factory length: three 42 inch wires, two 38 inch wires, two 27 inch wires, and one 32 inch wire, plus a 14 inch coil wire to complete the ignition circuit.\u003c\/p\u003e\u003cp\u003eTerminal ends at both the spark plug and distributor connections are stainless steel, which resists the corrosion that marine engine bays are prone to and helps maintain consistent electrical conductivity over time. The set is designed for use with EST electronic ignition systems and uses Delco EST \/ Delco EFI style connectors. It ships as a complete single-item set (Unit Count: 1) ready to install in place of a worn or cracked factory wire set.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8820-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Ford HEI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Delco EST, Delco EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Lengths:\u003c\/strong\u003e (3) 42 inches, (2) 38 inches, (2) 27 inches, (1) 32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e 14 inches (1 piece)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel (spark plug and distributor terminals)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.99 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194482\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 5.0L (Ford), 8-cylinder, Ford HEI distributor, 1993-1996\u003c\/li\u003e\n\u003cli\u003eOMC 5.8L, 8-cylinder, Ford HEI distributor, 1993-1996\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eNo OEM cross-reference numbers are listed for this part.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8820-1 spark plug wire set fit?\u003c\/strong\u003e It fits OMC 5.0L (Ford) and 5.8L 8-cylinder engines built with a Ford HEI distributor from 1993 to 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires come in the 18-8820-1 set?\u003c\/strong\u003e The set includes eight spark plug wires sized for an 8-cylinder engine: three 42 inch wires, two 38 inch wires, two 27 inch wires, and one 32 inch wire, plus one 14 inch coil wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the wire terminals made from?\u003c\/strong\u003e The spark plug and distributor terminals on the Sierra 18-8820-1 are stainless steel, which resists corrosion for consistent conductivity in a marine engine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wire set compatible with Delco EST or EFI ignition systems?\u003c\/strong\u003e Yes, the 18-8820-1 uses Delco EST \/ Delco EFI style connectors and is designed for use with EST electronic ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8820-1 include a coil wire?\u003c\/strong\u003e Yes, one 14 inch coil wire is included along with the eight spark plug wires in the set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8820-1 wire set weigh?\u003c\/strong\u003e It weighs 1.99 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire set work with a GM distributor instead of Ford HEI?\u003c\/strong\u003e The 18-8820-1 is built specifically for engines with a Ford HEI distributor; it is not the listed part for GM Prestolite or Delco EST distributor applications on other engine displacements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-8820-1?\u003c\/strong\u003e The UPC for the Sierra 18-8820-1 spark plug wire set is 808282194482.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8820-1 sold as a complete set or individual wires?\u003c\/strong\u003e It ships as one complete set (Unit Count: 1) containing all eight spark plug wires and the coil wire needed for the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the wire length vary by cylinder position?\u003c\/strong\u003e Yes, the Sierra 18-8820-1 set is built with four different wire lengths (42, 38, 32, and 27 inches) to match specific cylinder positions rather than using one uniform length throughout.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988434989275,"sku":"SIE-18-8820-1","price":83.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__58255.1753840685.500.750.jpg?v=1785188009"},{"product_id":"marine-spark-plug-wire-set-for-gm-350-v8-5-7l-1970-1990-replaces-mercruiser-84-816761a9-omc-503752-8-cylinder","title":"Sierra 18-8803-2 MAGFORCE Spark Plug Wire Set, 8-Cylinder, Replaces Mercury Marine 84-816761A9, OMC 503755","description":"\u003cp\u003eThe Sierra 18-8803-2 is a MAGFORCE ignition wire set built for 8-cylinder Mercury Marine and OMC engines. Sierra markets these as \"Electronics Friendly,\" meaning the wire construction is engineered to protect onboard electronic devices and electronic engine controls from radio frequency interference (RFI) and electromagnetic interference (EMI) while still delivering maximum voltage to the spark plugs. Each wire uses a mag\/wire wound core to suppress interference without sacrificing spark energy, paired with moisture-proof, molded distributor insulators that seal out water intrusion at the distributor cap connection. A high-quality conductive center carrier reinforcement maintains conductor integrity over time, and a high tensile strength outer membrane adds durability and heat resistance so the wires hold up in the engine bay.\u003c\/p\u003e\u003cp\u003eThe set is designed for exact-fit installation on the applicable engine, meaning the wires are sized and routed to match factory configuration without cutting or custom fitting. This is a complete 8-cylinder wire set, replacing the full run of factory or worn ignition wires in one kit. It is built to meet or exceed original equipment quality and is a direct fit replacement referencing multiple Mercury Marine and OMC OEM part numbers.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8803-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Count:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper (core), PVC (insulation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 8 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Other\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.17 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194925\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Wiring, Plug Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Mercury Marine and OMC 8-cylinder engines using the OEM part numbers listed below.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMallory 9-28000\u003c\/li\u003e\n\u003cli\u003eMallory 9-28010\u003c\/li\u003e\n\u003cli\u003eMallory 9-28012\u003c\/li\u003e\n\u003cli\u003eMallory 9-28021\u003c\/li\u003e\n\u003cli\u003eMercruiser 84-43376A9\u003c\/li\u003e\n\u003cli\u003eMercury Marine 84-816761Q9\u003c\/li\u003e\n\u003cli\u003eMercury Marine 84-816761A9\u003c\/li\u003e\n\u003cli\u003eMercury Marine 84-813720A10\u003c\/li\u003e\n\u003cli\u003eMercury Marine 84-813720A9\u003c\/li\u003e\n\u003cli\u003eMercury Marine 84-816761Q10\u003c\/li\u003e\n\u003cli\u003eOMC 503752\u003c\/li\u003e\n\u003cli\u003eOMC 503755\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8803-2 wire set fit?\u003c\/strong\u003e The 18-8803-2 is built for 8-cylinder Mercury Marine and OMC engines, matching the factory OEM part numbers it cross-references.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires are in this set?\u003c\/strong\u003e This kit is a complete 8-cylinder set, so it includes enough ignition wires to replace all eight spark plug leads on the engine in one purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-8803-2 replace?\u003c\/strong\u003e It cross-references Mercury Marine 84-816761Q9, 84-816761A9, 84-813720A10, 84-813720A9, and 84-816761Q10, Mercruiser 84-43376A9, OMC 503752 and 503755, and Mallory 9-28000, 9-28010, 9-28012, and 9-28021.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8803-2 the same quality as the original wires?\u003c\/strong\u003e Sierra manufactures this MAGFORCE wire set to meet or exceed original equipment quality, so it is built as a direct, exact-fit replacement rather than a generic substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the wires made of?\u003c\/strong\u003e Each wire in the 18-8803-2 set uses a copper core with PVC insulation, plus a mag\/wire wound core construction for interference suppression.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow thick are the spark plug wires?\u003c\/strong\u003e The wires in the Sierra 18-8803-2 set measure 8 millimeters in diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires interfere with my boat's electronics?\u003c\/strong\u003e No. Sierra designed the MAGFORCE 18-8803-2 wire set to be Electronics Friendly, suppressing radio frequency interference (RFI) and electromagnetic interference (EMI) so it does not disrupt onboard electronic devices or engine controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8803-2 wire set weigh?\u003c\/strong\u003e The complete Sierra 18-8803-2 ignition wire set weighs 2.17 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the wire set include the distributor cap insulators?\u003c\/strong\u003e Yes, the 18-8803-2 set uses moisture-proof, molded distributor insulators to keep water out of the distributor cap connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy do the wires use a wound core instead of solid copper throughout?\u003c\/strong\u003e The mag\/wire wound core in the 18-8803-2 set is designed to deliver maximum voltage to the spark plugs while still suppressing RFI and EMI, which a plain solid conductor would not filter out as effectively.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation straightforward?\u003c\/strong\u003e Sierra designs the 18-8803-2 as an exact-fit wire set, so it installs using the factory routing and connections without custom cutting or fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box?\u003c\/strong\u003e The Sierra 18-8803-2 comes as a complete 8-cylinder wiring and plug set ready to install on Mercury Marine and OMC engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435022043,"sku":"SIE-18-8803-2","price":57.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8803-2_lg__22716.1558140573.500.750.jpg?v=1785188223"},{"product_id":"sierra-18-8808-2-spark-plug-wire-set-for-mercruiser-4-cyl-224-cid-marine-engines-with-conventional-ignition","title":"Sierra 18-8808-2 Mag Force Spark Plug Wire Set for Mercruiser 4-Cylinder Engines with Conventional Ignition","description":"\u003cp\u003eThe Sierra 18-8808-2 Mag Force spark plug wire set is a direct-fit ignition wire kit built for Mercruiser 4-cylinder engines equipped with conventional ignition systems. The set uses a stainless steel wound conductor for strong horsepower and engine performance along with superior RFI suppression, protecting sensitive onboard electronics from interference. A Kevlar core runs through each wire for maximum durability and long service life, while premium silicone jacketing and silicone boots shield the wires against the high underhood temperatures typical of a marine engine compartment. Corrosion-resistant stainless steel terminals are used at both the spark plug and distributor connections to maintain reliable conductivity in the marine environment.\u003c\/p\u003e\u003cp\u003eThe kit includes five wires sized for correct routing on applicable Mercruiser 4-cylinder engines: one 13-inch coil wire, one 23-inch spark wire, one 26-inch spark wire, one 34-inch spark wire, and one 39-inch spark wire. It is engineered as a like-for-like replacement for the original ignition wiring on the applicable engine models, restoring consistent spark delivery and smoother running.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8808-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Conventional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e 13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Wire Lengths:\u003c\/strong\u003e 23 inches, 26 inches, 34 inches, 39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket and Boot Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282228705\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser Model 165, 4-cylinder, Delco distributor, 1987, serial number 0B434940 to 0B774251\u003c\/li\u003e\n\u003cli\u003eMercruiser Model 170, 4-cylinder, Delco distributor, 1985-1986, serial number 6916779 to 0B434940\u003c\/li\u003e\n\u003cli\u003eMercruiser Model 190, 4-cylinder, Delco distributor, 1985-1986, serial number 6916779 to 0B436390\u003c\/li\u003e\n\u003cli\u003eMercruiser Model 3.7L, 4-cylinder, Delco distributor, 1988-1989, serial number 0B774252 and up\u003c\/li\u003e\n\u003cli\u003eMercruiser Model 3.7LX, 4-cylinder, Delco distributor, 1988-1989, serial number 0B775249 and up\u003c\/li\u003e\n\u003cli\u003eMercruiser Model 470, 4-cylinder, Delco distributor, 1976-1984, serial number 4208370 to 6916778\u003c\/li\u003e\n\u003cli\u003eMercruiser Model 485, 4-cylinder, Delco distributor, 1980-1982, serial number 5685394 to 6218036\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8808-2 spark plug wire set fit?\u003c\/strong\u003e The 18-8808-2 fits Mercruiser 4-cylinder engines with conventional ignition systems, including Model 165 (1987), Model 170 (1985-1986), Model 190 (1985-1986), Model 3.7L (1988-1989), Model 3.7LX (1988-1989), Model 470 (1976-1984), and Model 485 (1980-1982), all with Delco distributors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8808-2 wire set?\u003c\/strong\u003e This Sierra Mag Force set includes five wires: one 13-inch coil wire and four spark plug wires measuring 23 inches, 26 inches, 34 inches, and 39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire conductor made of?\u003c\/strong\u003e A stainless steel wound conductor is used throughout the 18-8808-2 set, chosen for strong horsepower delivery, engine performance, and superior RFI suppression for sensitive electronic systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this set use a Kevlar core?\u003c\/strong\u003e Yes, each wire in the Sierra 18-8808-2 set has a Kevlar core for maximum durability and long service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat protects the wires from engine heat?\u003c\/strong\u003e Premium silicone jacketing and silicone boots cover the wires and terminals in the 18-8808-2 set, providing high-temperature protection in the engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wire set designed for conventional or electronic ignition?\u003c\/strong\u003e The Sierra 18-8808-2 is built specifically for Mercruiser 4-cylinder engines with conventional ignition systems, not electronic ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8808-2 spark plug wire set weigh?\u003c\/strong\u003e It weighs 1.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the terminals made of?\u003c\/strong\u003e The spark plug and distributor terminals on the 18-8808-2 are stainless steel, chosen for corrosion resistance and maximum conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this set fit a Mercruiser 3.7LX engine?\u003c\/strong\u003e Yes, the 18-8808-2 fits the Mercruiser 3.7LX with a Delco distributor for the 1988-1989 model years, serial number 0B775249 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8808-2 a genuine Sierra part?\u003c\/strong\u003e Yes, this is a genuine Sierra Mag Force wire set identified by part number 18-8808-2, manufactured to meet or exceed the performance of the original ignition wiring it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the wire length differ between the coil wire and spark plug wires?\u003c\/strong\u003e Yes, the coil wire in the 18-8808-2 set measures 13 inches, while the four spark plug wires measure 23, 26, 34, and 39 inches respectively to match correct engine routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat Mercruiser serial number range applies to Model 470 with this wire set?\u003c\/strong\u003e For the Mercruiser Model 470, the 18-8808-2 applies to 1976-1984 engines with a Delco distributor, serial number 4208370 to 6916778.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435054811,"sku":"SIE-18-8808-2","price":57.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8808__82484.1558140665.500.750.jpg?v=1785188865"},{"product_id":"sierra-18-8822-1-magforce-marine-spark-plug-wire-set-replaces-mercruiser-84-816608q81-fits-mercruiser-sterndrive-engines","title":"Sierra 18-8822-1 MagForce Spark Plug Wire Set, Replaces 84-816608Q81, for Mercruiser 5.0L\/5.7L Delco EST Sterndrives 1993-2005","description":"\u003cp\u003eThe Sierra 18-8822-1 is a MagForce spark plug wire set built for Mercruiser sterndrive engines equipped with the 5.0L or 5.7L V8 Delco EST ignition system, model years 1993 to 2005. Sierra designed the MagForce line to be \"electronics friendly,\" protecting sensitive onboard electronics and engine control systems from radio frequency interference (RFI) and electromagnetic interference (EMI) while still delivering maximum voltage to the spark plugs.\u003c\/p\u003e\u003cp\u003eEach wire uses a Kevlar core for durability and long service life, paired with a stainless steel wound conductor that supports maximum horsepower and engine performance. The set is finished with premium silicone jacketing and silicone boots for high-temperature protection, along with corrosion-resistant stainless steel spark plug and distributor terminals for reliable conductivity. Moisture-proof, molded distributor insulators and a high-quality conductive center carrier reinforcement keep the conductor path intact, and a screw-down cap secures the distributor connection. The Mag\/Wire wound core is engineered to deliver maximum voltage without generating RFI or EMI, protecting nearby electronic devices and engine controls.\u003c\/p\u003e\u003cp\u003eThis wire set is an exact-fit design intended for straightforward installation and reliable, trouble-free service, replacing worn or original-equipment wiring on covered Mercruiser applications.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8822-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Line:\u003c\/strong\u003e MagForce\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Kevlar core, stainless steel wound conductor, silicone jacketing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 0.5 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Terminal-style\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.73 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282204013\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Spark Plug Wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser 5.0L and 5.7L V8 Delco EST sterndrive engines, 1993 to 2005\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 84-816608Q81, 84-816608A81\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser 5.0L V8, Delco EST ignition, 1993 to 2005\u003c\/li\u003e\n\u003cli\u003eMercruiser 5.7L V8, Delco EST ignition, 1993 to 2005\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e84-816608Q81\u003c\/li\u003e\n\u003cli\u003e84-816608A81\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8822-1 spark plug wire set fit?\u003c\/strong\u003e The Sierra 18-8822-1 is designed for Mercruiser sterndrive engines with the 5.0L V8 or 5.7L V8 Delco EST ignition system, covering model years 1993 to 2005.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8822-1 wire set fit 7.4L or 8.2L Mercruiser engines?\u003c\/strong\u003e No. The 5.0L and 5.7L V8 Delco EST engines use part number 18-8822-1, while 7.4L and 8.2L V8 Delco EST engines use a different Sierra part number, so buyers with those larger engines should confirm they are ordering the correct wire set for their displacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the Sierra 18-8822-1 replace?\u003c\/strong\u003e The Sierra 18-8822-1 MagForce spark plug wire set replaces Mercruiser Stern Drive OEM numbers 84-816608Q81 and 84-816608A81.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire set made of?\u003c\/strong\u003e Each wire in the 18-8822-1 set uses a Kevlar core with a stainless steel wound conductor, wrapped in premium silicone jacketing with silicone boots, and terminates in corrosion-resistant stainless steel spark plug and distributor terminals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire set cause interference with my boat's electronics?\u003c\/strong\u003e No. The MagForce design of the 18-8822-1 is built to be electronics friendly, using a Mag\/Wire wound core and superior RFI suppression to protect sensitive electronic devices and engine control systems from radio frequency and electromagnetic interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires are included in the 18-8822-1 set?\u003c\/strong\u003e The Sierra 18-8822-1 is a complete spark plug wire set sized for an 8-cylinder Mercruiser 5.0L or 5.7L Delco EST engine, including a screw-down distributor cap connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-8822-1 wire set?\u003c\/strong\u003e The Sierra 18-8822-1 has item dimensions of 0.39 x 0.39 x 0.39 inches per wire component and a total product weight of 1.73 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8822-1 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-8822-1 is a genuine Sierra MagForce spark plug wire set, engineered as an exact-fit replacement for the listed Mercruiser OEM wiring rather than a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 18-8822-1 protect against moisture and heat?\u003c\/strong\u003e The set uses moisture-proof, molded distributor insulators along with premium silicone jacketing and boots that provide high-temperature protection for the ignition wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the Sierra 18-8822-1 straightforward?\u003c\/strong\u003e Yes. The 18-8822-1 uses an exact-fit design intended to allow easy installation and years of trouble-free service on covered Mercruiser Delco EST engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does the wire set have a screw-down cap?\u003c\/strong\u003e The screw-down cap on the Sierra 18-8822-1 secures the distributor connection, helping maintain a reliable, moisture-resistant electrical connection at the distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat year range does the 18-8822-1 cover?\u003c\/strong\u003e The Sierra 18-8822-1 covers Mercruiser 5.0L and 5.7L V8 Delco EST sterndrive engines built from 1993 through 2005.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435087579,"sku":"SIE-18-8822-1","price":85.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8822-1__22688.1737841141.500.750.jpg?v=1785188274"},{"product_id":"sierra-18-8832-1-marine-spark-plug-wire-set-8-cylinder-copper-core-ignition-lead-set-for-omc-engines","title":"Sierra Wiring Plug Set 18-8832-1 for 7.4L and 8.2L 8-Cylinder Delco EST Engines 1993-2000","description":"\u003cp\u003eThe Sierra Wiring Plug Set 18-8832-1 is a MAGFORCE ignition wire set engineered for 7.4L and 8.2L 8-cylinder marine engines equipped with Delco EST ignition systems from 1993 to 2000. Built with a Mag\/Wire wound core, the set delivers maximum spark voltage to the plugs while actively shielding radio frequency interference (RFI) and electro magnetic interference (EMI) from onboard electronics and engine controls, making it an electronics friendly upgrade for engines running sensitive marine electronics. Each wire uses a high-quality conductive center carrier reinforcement to maintain conductor integrity over years of service, along with a high tensile strength membrane that adds durability and resists heat breakdown in the engine compartment. Moisture-proof, molded distributor insulators seal out water intrusion at the distributor connection, and a screw-down cap secures the wire set firmly in place to prevent vibration-related disconnects common in marine environments. The exact-fit design is built to the dimensions of the original 7.4L\/8.2L Delco EST ignition wiring, so installation is a direct swap with no modification needed. This wire set is intended as a full-set replacement rather than a single wire, restoring reliable spark delivery on engines whose original ignition wiring has degraded from heat, moisture, or age.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8832-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Spark plug wire (ignition wire) set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Type:\u003c\/strong\u003e Spark plug wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e 7.4L 8-cylinder Delco EST, 8.2L 8-cylinder Delco EST\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.89 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10.25 x 7.25 x 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Feature:\u003c\/strong\u003e Screw-down distributor cap connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Protection:\u003c\/strong\u003e Mag\/Wire wound core shields RFI and EMI\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e7.4L 8-cylinder Delco EST engines, 1993-2000\u003c\/li\u003e\n\u003cli\u003e8.2L 8-cylinder Delco EST engines, 1993-2000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8832-1 wiring plug set fit?\u003c\/strong\u003e The Sierra 18-8832-1 fits 7.4L 8-cylinder Delco EST engines and 8.2L 8-cylinder Delco EST engines built between 1993 and 2000.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a full set or a single spark plug wire?\u003c\/strong\u003e This is a complete wiring plug set, not a single wire, sized for the full 8-cylinder Delco EST ignition system on 7.4L and 8.2L engines from 1993-2000.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the wires made from?\u003c\/strong\u003e The Sierra 18-8832-1 wire set uses copper conductors with a Mag\/Wire wound core construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set protect onboard electronics from interference?\u003c\/strong\u003e Yes, the Mag\/Wire wound core in the 18-8832-1 set is designed to deliver maximum voltage while shielding radio frequency interference (RFI) and electro magnetic interference (EMI) from electronic engine controls and other onboard electronics.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-8832-1 wiring plug set?\u003c\/strong\u003e This ignition wire set is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8832-1 wiring plug set weigh?\u003c\/strong\u003e The Sierra 18-8832-1 weighs 1.89 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this wiring plug set as packaged?\u003c\/strong\u003e The Sierra 18-8832-1 measures 10.25 x 7.25 x 2.75 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the set include a distributor connection feature?\u003c\/strong\u003e Yes, the 18-8832-1 set includes a screw-down cap along with moisture-proof, molded distributor insulators that seal the connection at the distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire set hold up in a hot, wet engine compartment?\u003c\/strong\u003e The 18-8832-1 uses a high tensile strength membrane for added durability and heat resistance, along with moisture-proof molded insulators, to withstand the marine engine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the Sierra 18-8832-1 set?\u003c\/strong\u003e The listing includes 1 complete wiring plug set covering the 8-cylinder Delco EST configuration for the 7.4L and 8.2L engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8832-1 an exact-fit replacement or a universal wire set?\u003c\/strong\u003e The Sierra 18-8832-1 is built to an exact-fit design for its specified 7.4L and 8.2L Delco EST engines, matching the original wiring layout for straightforward installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat keeps the conductor from breaking down over time in this set?\u003c\/strong\u003e The 18-8832-1 uses a high-quality conductive center carrier reinforcement that maintains conductor integrity over years of trouble-free service.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435120347,"sku":"SIE-18-8832-1","price":74.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__96477.1753840686.500.750.jpg?v=1785188690"},{"product_id":"marine-spark-plug-wire-set-for-chrysler-inboard-318-340-360-v8-8-cylinder-electronic-conventional-ignition-kit-sierra-18-8826-1","title":"Sierra 18-8826-1 Spark Plug and Distributor Wire Set for Chrysler M273, LM318, M340, M360 V8 Inboard Engines","description":"\u003cp\u003eThe Sierra 18-8826-1 is a complete spark plug and distributor wire set built for Chrysler 8-cylinder inboard marine engines. The set is engineered for both conventional and electronic distributor systems, giving it broad coverage across compatible Chrysler powerheads. Each wire uses a mag\/wire wound core that delivers maximum voltage to the plugs while suppressing radio frequency interference (RFI) and electromagnetic interference (EMI), protecting sensitive onboard electronics from ignition noise.\u003c\/p\u003e\u003cp\u003eCorrosion resistant stainless steel terminals are used at both the spark plug and distributor connections for reliable, long-term conductivity in the marine environment. A kevlar-reinforced conductor core adds durability and resistance to heat and vibration, while premium silicone jacketing and silicone boots shield the wires from high underhood temperatures. The distributor end uses moisture-proof, molded insulators to keep out water intrusion, and a high-quality conductive center carrier reinforcement maintains conductor integrity over the life of the set.\u003c\/p\u003e\u003cp\u003eThe set includes one coil wire and eight spark plug wires cut to factory-matched lengths for a proper fit across the compatible engines.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8826-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Chrysler Inboard Spark Plug Wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinders:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Conventional and Electronic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e M273, LM318, M340, M360\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Lengths:\u003c\/strong\u003e 1 Coil Wire 14 inches, 1 Spark Plug Wire 28 inches, 1 Spark Plug Wire 32 inches, 3 Spark Plug Wires 24 inches, 3 Spark Plug Wires 31 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Kevlar core conductor with silicone jacketing and stainless steel terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.84 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194536\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Insulators:\u003c\/strong\u003e Moisture-proof, molded\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler M273, 8-cylinder, Conventional and Electronic distributor, 1968-1974\u003c\/li\u003e\n\u003cli\u003eChrysler LM318, 8-cylinder, Conventional and Electronic distributor, 1968-1985\u003c\/li\u003e\n\u003cli\u003eChrysler M340, 8-cylinder, Conventional and Electronic distributor, 1968-1985\u003c\/li\u003e\n\u003cli\u003eChrysler M360, 8-cylinder, Conventional and Electronic distributor, 1975-1985\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhich Chrysler marine engines does the Sierra 18-8826-1 wire set fit?\u003c\/strong\u003e The Sierra 18-8826-1 spark plug and distributor wire set fits Chrysler M273 (1968-1974), LM318 (1968-1985), M340 (1968-1985), and M360 (1975-1985) 8-cylinder inboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this wire set work with both conventional and electronic distributors?\u003c\/strong\u003e Yes, the 18-8826-1 set is designed to work with both conventional and electronic distributor systems on the compatible Chrysler M273, LM318, M340, and M360 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8826-1 set?\u003c\/strong\u003e The set includes 9 wires total: 1 coil wire (14 inches), 1 spark plug wire (28 inches), 1 spark plug wire (32 inches), 3 spark plug wires (24 inches), and 3 spark plug wires (31 inches), covering all 8 cylinders plus the coil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the wire conductors made from?\u003c\/strong\u003e The 18-8826-1 set uses a kevlar-reinforced conductor core with a mag\/wire wound design for durability and consistent voltage delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8826-1 wire set weigh?\u003c\/strong\u003e The Sierra 18-8826-1 spark plug and distributor wire set weighs 1.84 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8826-1 set fit Chrysler 361, 383, 400, or 440 engines?\u003c\/strong\u003e No. Those Chrysler engines use Sierra part number 18-8827-1, a separate SKU with its own wire set, so buyers with a 361, 383, 400, or 440 should order that part instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set help reduce electronic interference?\u003c\/strong\u003e Yes, the mag\/wire wound core in the 18-8826-1 set is engineered to deliver maximum voltage while suppressing radio frequency interference (RFI) and electromagnetic interference (EMI).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals resistant to corrosion?\u003c\/strong\u003e Yes, the 18-8826-1 set uses corrosion resistant stainless steel terminals at both the spark plug and distributor connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat protects the wires from engine heat?\u003c\/strong\u003e Premium silicone jacketing and silicone boots on the 18-8826-1 wires provide high-temperature protection in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8826-1 backed by a warranty?\u003c\/strong\u003e Yes, Sierra warrants the 18-8826-1 wire set to be free of defects in workmanship and materials for the useful life of the product, subject to Sierra's standard warranty terms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the distributor end have any moisture protection?\u003c\/strong\u003e Yes, the 18-8826-1 set includes moisture-proof, molded distributor insulators to help keep water out of the distributor connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this product?\u003c\/strong\u003e The Sierra 18-8826-1 spark plug and distributor wire set has UPC 808282194536.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435153115,"sku":"SIE-18-8826-1","price":97.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8826-1__79431.1739458923.500.750.jpg?v=1785188274"},{"product_id":"sierra-18-8821-1-spark-plug-wire-set-for-mercruiser-8-cylinder-v8-engines-with-thunderbolt-ignition","title":"Sierra Spark Plug Wire Set 18-8821-1 for Mercruiser 260, 300, 320 EFI, 350 Mag Alpha Thunderbolt IV 8-Cylinder Engines","description":"\u003cp\u003eThe Sierra 18-8821-1 Spark Plug Wire Set is a complete 8-cylinder ignition wiring kit built for Mercruiser stern drive engines equipped with a Thunderbolt IV distributor. The set includes eight spark plug wires plus a coil wire, all terminated with corrosion resistant stainless steel spark plug and distributor terminals for reliable conductivity in the marine environment. Spark plug wire lengths are (2) 29 inches, (2) 34 inches, (2) 38 inches, and (2) 44 inches, with a single 12 inch coil wire, giving the correct reach for routing around an 8-cylinder Mercruiser block without excess slack or strain on the terminals.\u003c\/p\u003e\u003cp\u003eThis wire set is engineered to meet or exceed the performance of the original equipment wiring it replaces, built to withstand heat, vibration, moisture, and salt exposure typical of marine ignition systems. It is designed as a direct fit for the Mercruiser 260, 260 MIE, 300, 320 EFI, and 350 Mag Alpha engines listed below, all of which use the Thunderbolt IV distributor on an 8-cylinder configuration.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8821-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Spark Plug Wires:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Lengths:\u003c\/strong\u003e (2) 29 inches, (2) 34 inches, (2) 38 inches, (2) 44 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e 12 inches (1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Corrosion resistant stainless steel spark plug and distributor terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Thunderbolt IV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Configuration:\u003c\/strong\u003e 8 Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10.25 x 7.25 x 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194499\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser 260, 8 Cylinder, Thunderbolt IV distributor, 1982 to 1987\u003c\/li\u003e\n\u003cli\u003eMercruiser 260 MIE (LH), 8 Cylinder, Thunderbolt IV distributor, 1981 to 1986\u003c\/li\u003e\n\u003cli\u003eMercruiser 260 MIE (RH), 8 Cylinder, Thunderbolt IV distributor, 1981 to 1986\u003c\/li\u003e\n\u003cli\u003eMercruiser 300, 8 Cylinder, Thunderbolt IV distributor, 1985 to 1986\u003c\/li\u003e\n\u003cli\u003eMercruiser 320 EFI, 8 Cylinder, Thunderbolt IV distributor, 1987 to 1989\u003c\/li\u003e\n\u003cli\u003eMercruiser 350 Mag Alpha, 8 Cylinder, Thunderbolt IV distributor, 1986 to 1994\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8821-1 spark plug wire set fit?\u003c\/strong\u003e It fits Mercruiser 8-cylinder engines equipped with a Thunderbolt IV distributor, specifically the 260, 260 MIE (LH and RH), 300, 320 EFI, and 350 Mag Alpha models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires are included in this set?\u003c\/strong\u003e The 18-8821-1 set includes 8 spark plug wires plus 1 coil wire, enough for a complete 8-cylinder ignition wiring job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the individual wire lengths?\u003c\/strong\u003e Spark plug wire lengths are (2) 29 inches, (2) 34 inches, (2) 38 inches, and (2) 44 inches, with a single 12 inch coil wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the terminals made from?\u003c\/strong\u003e The 18-8821-1 set uses corrosion resistant stainless steel spark plug and distributor terminals for reliable conductivity in the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set work with a Thunderbolt IV distributor?\u003c\/strong\u003e Yes, the Sierra 18-8821-1 is specifically designed for Mercruiser engines using the Thunderbolt IV distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this fit a Mercruiser 260 MIE with a serial number in the 5907058 to 0B788151 range?\u003c\/strong\u003e Yes, both the left-hand (LH) and right-hand (RH) 260 MIE Thunderbolt IV engines with serial numbers 5907058 through 0B788151 use the 18-8821-1 wire set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat year range does this part cover for the Mercruiser 350 Mag Alpha?\u003c\/strong\u003e For the 350 Mag Alpha with Thunderbolt IV distributor, the 18-8821-1 covers 1986 to 1994.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-8821-1 is a genuine Sierra part, manufactured to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the weight of this spark plug wire set?\u003c\/strong\u003e The Sierra 18-8821-1 spark plug wire set weighs 2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8821-1 fit the Mercruiser 320 EFI?\u003c\/strong\u003e Yes, it fits the Mercruiser 320 EFI with a Thunderbolt IV distributor, covering serial numbers 0A543604 to 0C622418 from 1987 to 1989.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the wires resistant to corrosion in a marine environment?\u003c\/strong\u003e Yes, the terminals on the 18-8821-1 set are corrosion resistant stainless steel, built to withstand the marine environment's heat, vibration, and moisture.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-8821-1 kit?\u003c\/strong\u003e The kit includes the complete 8-cylinder spark plug wire set: 8 spark plug wires and 1 coil wire for a Mercruiser Thunderbolt IV ignition system.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435218651,"sku":"SIE-18-8821-1","price":66.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__75469.1753840690.500.750.jpg?v=1785189165"},{"product_id":"marine-spark-plug-wire-set-for-mercruiser-sterndrive-and-omc-6-cylinder-est-engines-replaces-84-813720a11-sierra-18-8810-1","title":"Sierra 18-8810-1 MagForce Marine Spark Plug Wire Set, 6-Cylinder, for Mercruiser Sterndrive and OMC Engines","description":"\u003cp\u003eThe Sierra 18-8810-1 is a premium MagForce marine spark plug wire set built for 6-cylinder Mercruiser Sterndrive and OMC engines with EST Electronic ignition. Each wire uses a Kevlar core paired with a durable stainless steel wound conductor, delivering the electrical conductivity needed for consistent horsepower and reliable engine performance. The wires are finished with premium silicone jacketing and silicone boots that hold up under sustained high engine-bay temperatures, protecting the set from heat degradation over time. Silicone construction also provides superior RFI suppression, which matters for boats running sensitive onboard electronics, gauges, and marine electronics that can otherwise pick up ignition interference.\u003c\/p\u003e\u003cp\u003eTerminal ends are stainless steel at both the spark plug and distributor connections, resisting the corrosion that saltwater and engine-bay moisture cause on lesser terminal materials, so the set maintains conductivity and a solid connection over its service life. The set is finished in white and is a direct fit for the 6-cylinder Mercruiser Sterndrive and OMC applications it is designed for. As with all Sierra parts, buyers should verify this is the correct wire set for their specific engine application before ordering.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8810-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cylinders:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e EST Electronic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Terminal Block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Material:\u003c\/strong\u003e Stainless Steel Wound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJacket\/Boot Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.37 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194390\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e6-cylinder Mercruiser Sterndrive engines\u003c\/li\u003e\n\u003cli\u003e6-cylinder OMC engines\u003c\/li\u003e\n\u003cli\u003eEST Electronic ignition systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e84-813720A11\u003c\/li\u003e\n\u003cli\u003e84-816761Q16\u003c\/li\u003e\n\u003cli\u003e503751\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8810-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8810-1 is designed for 6-cylinder Mercruiser Sterndrive and OMC engines that use EST Electronic ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many cylinders does this wire set cover?\u003c\/strong\u003e This is a 6-cylinder set, matching the number of spark plug wires needed for a 6-cylinder Mercruiser Sterndrive or OMC engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-8810-1 replace?\u003c\/strong\u003e It replaces Mercruiser Stern Drive numbers 84-813720A11 and 84-816761Q16, as well as OMC number 503751.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-8810-1 is a Sierra-manufactured MagForce wire set, sold as a direct replacement carrying Sierra's own part number and warranty coverage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire core made of?\u003c\/strong\u003e Each wire in the Sierra 18-8810-1 set has a Kevlar core paired with a stainless steel wound conductor for durability and consistent electrical performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires hold up to engine heat?\u003c\/strong\u003e Yes, the 18-8810-1 uses premium silicone jacketing and silicone boots specifically for high-temperature protection in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo these wires cause interference with onboard electronics?\u003c\/strong\u003e No, the silicone construction of the 18-8810-1 set provides superior RFI suppression, which helps prevent ignition interference with sensitive electronic systems on board.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-8810-1 wire set?\u003c\/strong\u003e This spark plug wire set is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8810-1 weigh?\u003c\/strong\u003e The Sierra 18-8810-1 spark plug wire set weighs 1.37 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminal ends resistant to corrosion?\u003c\/strong\u003e Yes, the spark plug and distributor terminal ends on the 18-8810-1 are stainless steel, which resists corrosion for maximum conductivity over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the 18-8810-1?\u003c\/strong\u003e The 18-8810-1 includes the complete set of spark plug wires with terminal ends for a 6-cylinder Mercruiser Sterndrive or OMC engine application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the 18-8810-1 is correct for my boat?\u003c\/strong\u003e Because ignition wire sets are application-specific, verify the 18-8810-1 matches your engine's cylinder count and EST Electronic ignition setup before ordering.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435251419,"sku":"SIE-18-8810-1","price":48.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8810-1_lg__53975.1558140709.500.750.jpg?v=1785188661"},{"product_id":"sierra-18-8835-1-marine-spark-plug-wire-set-6-cylinder-delco-hei-ignition-wire-kit-universal-fit","title":"Sierra 18-8835-1 MAGFORCE Ignition Wire Set for 3.0L 4-Cyl and 4.3L 6-Cyl Marine Engines","description":"\u003cp\u003eThe Sierra 18-8835-1 is a MAGFORCE ignition wire set built for marine engines that use a Delco EST or YEMS distributor. Sierra designed the MAGFORCE line to be \"Electronics Friendly,\" meaning the wires are constructed to protect onboard electronic devices and electronic engine controls from radio frequency interference (RFI) and electromagnetic interference (EMI) while still delivering maximum voltage to the spark plugs. Each wire uses a Mag\/Wire wound core to achieve this shielding without sacrificing voltage output.\u003c\/p\u003e\u003cp\u003eConstruction features moisture-proof, molded distributor insulators that seal out the damp conditions typical of a marine engine compartment, along with a high-quality conductive center carrier reinforcement that maintains conductor integrity over the life of the wire. The set is built to an exact-fit design so installation follows the factory routing without modification.\u003c\/p\u003e\u003cp\u003eThe kit includes spark plug wires in 29 inch, 33 inch, and 39 inch lead lengths along with a 15.5 inch coil wire, covering the different plug positions on the engine. Part number 18-8835-1 fits 3.0L 4-cylinder engines with a Delco EST distributor, 4.3L 6-cylinder engines with a YEMS distributor, and 4.3L 6-cylinder engines with a Delco EST distributor.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8835-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition\/Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Type:\u003c\/strong\u003e Delco EST \/ YEMS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 3.0L 4-Cylinder; 4.3L 6-Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Lead Lengths:\u003c\/strong\u003e (2) 29 inches, (2) 33 inches, (2) 39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e 15.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Protection:\u003c\/strong\u003e RFI and EMI shielded (Mag\/Wire wound core)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Insulators:\u003c\/strong\u003e Moisture-proof, molded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194611\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e3.0L 4-Cylinder engine with Delco EST distributor, 1990 to 1993\u003c\/li\u003e\n\u003cli\u003e4.3L 6-Cylinder engine with YEMS distributor, 1989\u003c\/li\u003e\n\u003cli\u003e4.3L 6-Cylinder engine with Delco EST distributor, 1990\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8835-1 ignition wire set fit?\u003c\/strong\u003e The Sierra 18-8835-1 fits 3.0L 4-cylinder engines with a Delco EST distributor built from 1990 to 1993, 4.3L 6-cylinder engines with a YEMS distributor built in 1989, and 4.3L 6-cylinder engines with a Delco EST distributor built in 1990.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires come in the 18-8835-1 set?\u003c\/strong\u003e The set includes plug wires in three lead lengths, 29 inches, 33 inches, and 39 inches, plus a separate 15.5 inch coil wire, matching the plug positions on the covered 4-cylinder and 6-cylinder engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set protect against radio and electronic interference?\u003c\/strong\u003e Yes, the Sierra 18-8835-1 uses a Mag\/Wire wound core designed to block RFI and EMI so it delivers maximum voltage without interfering with onboard electronic engine controls or other electronic devices.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8835-1 moisture resistant?\u003c\/strong\u003e The distributor insulators on the 18-8835-1 are moisture-proof and molded, which helps the wire set hold up in the damp conditions of a marine engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the Sierra 18-8835-1 and 18-8836-1?\u003c\/strong\u003e The 18-8835-1 is built for 3.0L 4-cylinder and 4.3L 6-cylinder engines, while the 18-8836-1 is a separate part number for 5.0L and 5.7L 8-cylinder engines and 7.4L 8-cylinder engines; they are not interchangeable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the weight of the Sierra 18-8835-1 ignition wire set?\u003c\/strong\u003e The Sierra 18-8835-1 MAGFORCE ignition wire set weighs 1.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-8835-1 fit my engine if it has a Delco EST distributor?\u003c\/strong\u003e It depends on the engine size and year. The 18-8835-1 fits a 3.0L 4-cylinder engine with Delco EST from 1990 to 1993, and a 4.3L 6-cylinder engine with Delco EST in 1990.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-8835-1 include a coil wire?\u003c\/strong\u003e Yes, the set includes one coil wire measuring 15.5 inches in addition to the spark plug wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat kind of distributor works with the 18-8835-1 wire set?\u003c\/strong\u003e The 18-8835-1 is designed for engines using a Delco EST distributor or a YEMS distributor, depending on the engine model and year.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the Sierra 18-8835-1 straightforward?\u003c\/strong\u003e Sierra designed the 18-8835-1 with an exact-fit layout so the wires route the same way as the original set, making installation straightforward.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat reinforces the conductor in the Sierra 18-8835-1 wires?\u003c\/strong\u003e Each wire in the 18-8835-1 set uses a high-quality conductive center carrier reinforcement to help maintain conductor integrity over time.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435284187,"sku":"SIE-18-8835-1","price":71.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8835-1__36127.1739458940.500.750.jpg?v=1785188921"},{"product_id":"sierra-18-8839-1-magforce-marine-spark-plug-wire-set-for-90-and-115-hp-outboard-engines-4-cylinder-ignition-wire-kit","title":"Sierra 18-8839-1 Spark Plug Wire Set for 90 and 115 HP Outboard Engines","description":"\u003cp\u003eThe Sierra 18-8839-1 is a spark plug wire set engineered for 90 hp and 115 hp outboard engines, supplying the two 14 inch wires and two 16 inch wires needed for a complete tune-up on these motors. Each wire uses a stainless steel wound conductor paired with a mag\/wire wound core, a design intended to deliver maximum voltage to the spark plug while suppressing radio frequency interference (RFI) and electromagnetic interference (EMI) that can disrupt sensitive onboard electronics. The wires are jacketed in silicone for high temperature protection at the cylinder head, and the distributor insulators are moisture-proof and molded to keep water out of the ignition circuit in a marine environment. A high-quality conductive center carrier reinforcement is built into each wire to maintain conductor integrity over time, and the terminals at the spark plug and distributor ends are corrosion-resistant stainless steel for consistent conductivity. The set is finished in white and is sold as a complete kit of four wires sized specifically for the 90 hp and 115 hp outboard applications. This wire set replaces a worn or cracked factory ignition wire set that can cause misfires, hard starting, or reduced power, restoring reliable spark delivery across all four (or six) cylinders as applicable to the outboard's ignition system.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8839-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Outboard Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 90 and 115 HP Outboard Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Configuration:\u003c\/strong\u003e Two 14 inch wires and two 16 inch wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Material:\u003c\/strong\u003e Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Material:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Type:\u003c\/strong\u003e Mag\/Wire wound core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10.25 x 7.25 x 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194642\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90 HP Outboard Engines\u003c\/li\u003e\n\u003cli\u003e115 HP Outboard Engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8839-1 wire set fit?\u003c\/strong\u003e The Sierra 18-8839-1 is built specifically for 90 hp and 115 hp outboard engines and is not intended as a universal fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in this set and what lengths are they?\u003c\/strong\u003e The set includes four wires total: two 14 inch wires and two 16 inch wires, sized to reach the correct cylinders on 90 hp and 115 hp outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire conductor made of?\u003c\/strong\u003e Each wire in the 18-8839-1 set uses a stainless steel wound conductor combined with a mag\/wire wound core for strong voltage delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires cause radio or electronic interference?\u003c\/strong\u003e No. The mag\/wire wound core construction in the 18-8839-1 set is designed to suppress radio frequency interference (RFI) and electromagnetic interference (EMI).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this wire set moisture resistant for marine use?\u003c\/strong\u003e Yes, the 18-8839-1 set has moisture-proof, molded distributor insulators designed to keep water out of the ignition circuit in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is used for the outer jacket of the wires?\u003c\/strong\u003e The wires are jacketed in silicone, which provides high temperature protection at the spark plug and cylinder head.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8839-1 spark plug wire set weigh?\u003c\/strong\u003e This spark plug wire set weighs 0.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the wires in this set?\u003c\/strong\u003e The Sierra 18-8839-1 wires are white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals on this wire set corrosion resistant?\u003c\/strong\u003e Yes, the spark plug and distributor terminals on the 18-8839-1 set are corrosion-resistant stainless steel for consistent conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set fit 150 or 175 hp outboards?\u003c\/strong\u003e No, the 18-8839-1 is sized for 90 hp and 115 hp outboards; 150 hp and 175 hp outboards use a different wire set with longer wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-8839-1 wire set?\u003c\/strong\u003e The UPC for this spark plug wire set is 808282194642.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate I need to replace my outboard's spark plug wires?\u003c\/strong\u003e Misfires, hard starting, or a noticeable loss of power on a 90 hp or 115 hp outboard can indicate cracked or degraded ignition wires, which the 18-8839-1 set is designed to replace.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435349723,"sku":"SIE-18-8839-1","price":46.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8839-1__84314.1739458950.500.750.jpg?v=1785188398"},{"product_id":"sierra-18-8840-1-spark-plug-wire-set-6-cylinder-150-175-hp-outboard-ignition-lead-kit","title":"Sierra 18-8840-1 Spark Plug Wire Set for 150 \u0026 175 HP Outboard Engines","description":"\u003cp\u003eThe Sierra 18-8840-1 is an inductive spark plug wire set engineered for 150 and 175 hp outboard engines. The set includes two 14 inch wires and two 16 inch wires, giving each cylinder the correct reach without excess slack or strain on the terminals. Each wire uses a Kevlar core wound with a stainless steel conductor, paired with a Mag\/Wire wound core design that suppresses radio frequency interference (RFI) and electromagnetic interference (EMI) so onboard electronics run cleanly alongside the ignition system.\u003c\/p\u003e\u003cp\u003eThe wires are finished with premium silicone jacketing and boots for protection against the high heat found near the powerhead, and the terminal ends use corrosion resistant stainless steel spark plug and distributor terminals for consistent conductivity in the marine environment. Moisture-proof, molded distributor insulators seal out water intrusion at the distributor connection, while a high tensile strength membrane and nylon reinforcing tape add durability against vibration, chafing, and heat over the life of the set. This wire set is built to meet or exceed the performance of the original equipment wiring it replaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8840-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 150 \u0026amp; 175 hp Outboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Lengths:\u003c\/strong\u003e Two 14 inch, Two 16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicone, Stainless Steel, Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Type:\u003c\/strong\u003e Mag\/Wire wound core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel spark plug and distributor terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulator:\u003c\/strong\u003e Moisture-proof, molded distributor insulators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10.25 x 7.25 x 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.93 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194659\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e150 \u0026amp; 175 hp Outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8840-1 wire set fit?\u003c\/strong\u003e The Sierra 18-8840-1 is built for 150 and 175 hp outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8840-1 set and what lengths are they?\u003c\/strong\u003e The set includes two 14 inch wires and two 16 inch wires, sized for the 150 \u0026amp; 175 hp outboard engine layout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire core made of?\u003c\/strong\u003e Each wire in the Sierra 18-8840-1 set uses a Kevlar core wound with a stainless steel conductor for durability and consistent conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set help with radio or electronic interference?\u003c\/strong\u003e Yes. The Mag\/Wire wound core in the 18-8840-1 provides suppression of radio frequency interference (RFI) and electromagnetic interference (EMI).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a direct OEM replacement or an aftermarket part?\u003c\/strong\u003e Sierra 18-8840-1 is an aftermarket wire set engineered to meet or exceed the performance of the original equipment wiring it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8840-1 spark plug wire set weigh?\u003c\/strong\u003e The Sierra 18-8840-1 wire set weighs 0.93 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the boots and jacketing made of?\u003c\/strong\u003e The wires use premium silicone jacketing and boots, chosen for high temperature protection near the outboard powerhead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals resistant to corrosion?\u003c\/strong\u003e Yes, the 18-8840-1 uses corrosion resistant stainless steel spark plug and distributor terminals designed for the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat protects the distributor connection from moisture?\u003c\/strong\u003e Moisture-proof, molded distributor insulators seal the distributor connection on the Sierra 18-8840-1 set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box?\u003c\/strong\u003e The Sierra 18-8840-1 package contains one complete spark plug wire set: two 14 inch wires and two 16 inch wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-8840-1 different from Sierra's other outboard wire sets?\u003c\/strong\u003e The 18-8840-1 is specific to 150 \u0026amp; 175 hp outboards with two 14 inch and two 16 inch wires, while other Sierra sets such as the 18-8839-1 are built for different horsepower ranges with their own wire lengths.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435382491,"sku":"SIE-18-8840-1","price":58.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8840-1__15845.1739458953.500.750.jpg?v=1785188302"},{"product_id":"sierra-18-8829-1-marine-spark-plug-wire-set-for-6-cylinder-inboard-engines-complete-ignition-wire-set-with-21in-coil-wire-universal-fit","title":"Sierra 18-8829-1 Spark Plug Wire Set, 5.7L 8-Cylinder Delco HVS Ignition, 2005 \u0026 Up","description":"\u003cp\u003eThe Sierra 18-8829-1 is a MAGFORCE spark plug wire set built for 5.7L 8-cylinder marine engines equipped with Delco HVS ignition, 2005 and up. Sierra designed the MAGFORCE line to be \"electronics friendly,\" shielding sensitive electronic devices and electronic engine controls from radio frequency interference (RFI) and electromagnetic interference (EMI) while still delivering maximum voltage to each cylinder. The set includes one 21 inch coil wire along with spark plug wires supplied in three paired lengths (225 inches, 28 inches, and 32 inches) to route correctly around the engine, and terminates in a screw-down cap at the distributor.\u003c\/p\u003e\u003cp\u003eConstruction features moisture-proof, molded distributor insulators that keep water and humidity out of the connection points, plus a high-quality conductive center carrier reinforcement that maintains conductor integrity over time. The core is Mag\/Wire wound to deliver maximum voltage output without generating RFI or EMI that could interfere with onboard electronics. Each set uses an exact-fit design engineered for straightforward installation and dependable, trouble-free service in the marine environment. This wire set is intended specifically for 5.7L, 8-cylinder engines running Delco HVS ignition, 2005 and up.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8829-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 5.7L, 8-cylinder, Delco HVS ignition, 2005 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e 21 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (Pair 1):\u003c\/strong\u003e 225 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (Pair 2):\u003c\/strong\u003e 28 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (Pair 3):\u003c\/strong\u003e 32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Cap Type:\u003c\/strong\u003e Screw down cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterference Protection:\u003c\/strong\u003e RFI and EMI resistant (electronics friendly)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Type:\u003c\/strong\u003e Mag\/Wire wound core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulator Type:\u003c\/strong\u003e Moisture-proof, molded distributor insulators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1 set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.38 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5.7L, 8-cylinder engines with Delco HVS ignition, 2005 \u0026amp; Up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are listed for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8829-1 spark plug wire set fit?\u003c\/strong\u003e The 18-8829-1 set is designed for 5.7L, 8-cylinder marine engines running Delco HVS ignition, 2005 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long are the wires included in this set?\u003c\/strong\u003e The set includes one 21 inch coil wire plus spark plug wires supplied in three paired lengths: 225 inches, 28 inches, and 32 inches, to route correctly around the 5.7L engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a coil wire included with the 18-8829-1 set?\u003c\/strong\u003e Yes, one 21 inch coil wire is included along with the spark plug wires in the Sierra 18-8829-1 set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does this wire set prevent radio and electrical interference?\u003c\/strong\u003e A Mag\/Wire wound core in the 18-8829-1 set delivers maximum voltage while resisting radio frequency interference (RFI) and electromagnetic interference (EMI), keeping onboard electronics protected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the distributor connections on this set moisture resistant?\u003c\/strong\u003e Yes, the 18-8829-1 uses moisture-proof, molded distributor insulators to keep water and humidity out of the connection points.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of cap does this wire set use at the distributor?\u003c\/strong\u003e The Sierra 18-8829-1 terminates with a screw-down cap at the distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-8829-1 fit engines other than a 5.7L with Delco HVS ignition?\u003c\/strong\u003e This set is engineered specifically for 5.7L, 8-cylinder engines with Delco HVS ignition, 2005 and up; fitment for other displacements is not covered by this part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-8829-1 a genuine Sierra product?\u003c\/strong\u003e Yes, this wire set is manufactured by Sierra, a marine parts supplier of 50 years, and is engineered to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box with the 18-8829-1?\u003c\/strong\u003e The set ships as a single kit (Number of Items: 1) containing the coil wire and the multi-length spark plug wires needed for a 5.7L Delco HVS ignition system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8829-1 spark plug wire set weigh?\u003c\/strong\u003e The Sierra 18-8829-1 weighs 1.38 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the packaged dimensions of this wire set?\u003c\/strong\u003e The 18-8829-1 has item dimensions of 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra offer a warranty on the 18-8829-1?\u003c\/strong\u003e Yes, the 18-8829-1 qualifies for Sierra's customer satisfaction warranty, which covers defects in workmanship and materials for the useful life of the product, subject to Sierra's additional terms and conditions.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435415259,"sku":"SIE-18-8829-1","price":105.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8829-1__92720.1737898784.500.750.jpg?v=1785188811"},{"product_id":"sierra-18-8834-1-spark-plug-wire-set-for-mercury-hei-8-cylinder-marine-ignition","title":"Sierra Spark Plug Wire Set 18-8834-1 for Mercruiser MX 6.2L MPI 377 V-8 (2000-2001)","description":"\u003cp\u003eThis Sierra spark plug wire set, part number 18-8834-1, is a complete tune-up wiring kit built for Mercruiser MX 6.2L MPI 377 cid V-8 sterndrive engines from the 2000-2001 model years (serial number range L680003 through M299999). The set uses Mercury HEI ignition type wiring and is finished in white for easy visual routing and identification in the engine bay. It includes a full complement of leads sized for each cylinder position: one 29 inch spark wire, two 33 inch spark wires, three 39 inch spark wires, two 45 inch spark wires, and one 12 inch coil wire, giving the correct reach for every plug and coil connection on this engine without excess slack or strain.\u003c\/p\u003e\u003cp\u003eAs a Sierra replacement part, it is engineered to meet or exceed the performance of the original equipment wiring it replaces, using materials suited to withstand heat, vibration, and the marine engine environment. It is intended for use as part of a full tune-up alongside the correct contact set, rotor, distributor cap, coil, and distributor for this engine, restoring reliable spark delivery on aging or deteriorated factory wiring.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8834-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Mercury HEI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Wire Lengths:\u003c\/strong\u003e (1) 29 inches, (2) 33 inches, (3) 39 inches, (2) 45 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e (1) 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194604\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser MX 6.2L MPI, 377 cid V-8, model years 2000-2001, serial number range L680003 - M299999\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engine does Sierra 18-8834-1 fit?\u003c\/strong\u003e Sierra 18-8834-1 fits Mercruiser MX 6.2L MPI 377 cid V-8 engines built in the 2000-2001 model years, covering serial numbers L680003 through M299999.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many spark plug wires are in this set?\u003c\/strong\u003e The 18-8834-1 set includes eight spark plug wires (one 29 inch, two 33 inch, three 39 inch, and two 45 inch leads) plus one 12 inch coil wire, covering a full V-8 firing setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat ignition type is this wire set designed for?\u003c\/strong\u003e This set is built for Mercury HEI ignition systems, matching the ignition type used on the covered Mercruiser MX 6.2L MPI engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the wires in kit 18-8834-1?\u003c\/strong\u003e The Sierra 18-8834-1 wire set is white, making it easy to distinguish from the factory wiring during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8834-1 wire set weigh?\u003c\/strong\u003e This Sierra spark plug wire set weighs 1.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM or aftermarket part?\u003c\/strong\u003e Sierra 18-8834-1 is a Sierra-brand aftermarket wire set engineered to meet or exceed the performance of the original equipment wiring it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this kit include the coil wire?\u003c\/strong\u003e Yes, the 18-8834-1 set includes one 12 inch coil wire in addition to the eight spark plug wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other tune-up parts pair with this wire set?\u003c\/strong\u003e For a full tune-up on the covered Mercruiser MX 6.2L MPI 377 V-8, this wire set is used alongside the matching contact set, rotor, distributor cap, coil, and distributor for the same serial number range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill 18-8834-1 fit a Mercruiser from a different serial number range?\u003c\/strong\u003e This set is specified for the MX 6.2L MPI 377 V-8 engines in the L680003 to M299999 serial range; engines outside that range use a different wire set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat length are the individual spark plug wires?\u003c\/strong\u003e The kit includes wires in four lengths: one 29 inch, two 33 inch, three 39 inch, and two 45 inch spark wires, sized for the different cylinder positions on the V-8.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435448027,"sku":"SIE-18-8834-1","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8834-1__44220.1739458937.500.750.jpg?v=1785188506"},{"product_id":"sierra-18-8830-1-marine-ignition-spark-plug-wire-set-8-cylinder-chris-craft-engines-coil-plug-leads","title":"Sierra 18-8830-1 Marine Ignition Coil and Spark Plug Wire Set, Replaces Mallory 9-28024","description":"\u003cp\u003eThe Sierra 18-8830-1 Wiring Plug Set is a complete marine ignition wire kit consisting of one coil wire and eight spark plug wires supplied in four matched pairs of different lengths, allowing correct routing to each cylinder position on the engine. Each wire is engineered to meet or exceed the specifications of the original equipment part it replaces, giving boat owners a reliable way to restore ignition performance when factory wiring becomes cracked, brittle, or unreliable from prolonged heat and marine exposure. The set is sold as a single kit (1 count) and is intended as a direct equivalent to the original ignition wiring it replaces.\u003c\/p\u003e\u003cp\u003eThe coil wire measures 16 inches, while the spark plug wires are supplied in pairs at 275 inches, 305 inches, 345 inches, and 415 inches to match the varying distances from the distributor or coil to each cylinder. As a Sierra product, it is backed by Sierra's customer satisfaction warranty, which covers the product against defects in workmanship and materials for the useful life of the product, subject to Sierra's additional warranty terms.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8830-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Wiring, Plug Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e 16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (pair):\u003c\/strong\u003e 275 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (pair):\u003c\/strong\u003e 305 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (pair):\u003c\/strong\u003e 345 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Length (pair):\u003c\/strong\u003e 415 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.18 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194574\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFitment details for specific engine models are not specified for this part number; this wire set is cross-referenced to the Mallory ignition part listed below.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMallory 9-28024\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-8830-1 Wiring Plug Set include?\u003c\/strong\u003e It includes one coil wire measuring 16 inches and eight spark plug wires supplied as four matched pairs at 275 inches, 305 inches, 345 inches, and 415 inches, sold as a single 1-count kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-8830-1 the same as Mallory 9-28024?\u003c\/strong\u003e Yes, Sierra part number 18-8830-1 cross-references directly to Mallory part number 9-28024.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8830-1 wiring plug set weigh?\u003c\/strong\u003e The complete set weighs 0.18 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre Sierra ignition wires built to original equipment standards?\u003c\/strong\u003e Sierra states that the 18-8830-1 wire set is engineered to meet or exceed the specifications of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy are the spark plug wires different lengths in this set?\u003c\/strong\u003e The 18-8830-1 kit is supplied with four different wire pair lengths (275, 305, 345, and 415 inches) so each wire can correctly reach its corresponding cylinder position from the coil or distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8830-1 kit include the coil wire?\u003c\/strong\u003e Yes, a single 16 inch coil wire is included in addition to the eight spark plug wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for Sierra 18-8830-1?\u003c\/strong\u003e The UPC for the Sierra 18-8830-1 Wiring Plug Set is 808282194574.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-8830-1 covered by a warranty?\u003c\/strong\u003e Yes, it qualifies for Sierra's customer satisfaction warranty, which covers defects in workmanship and materials for the useful life of the product, subject to Sierra's additional warranty terms and conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the Sierra 18-8830-1 set?\u003c\/strong\u003e The set totals nine wires: one 16 inch coil wire plus eight spark plug wires in four pairs of differing lengths.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8830-1 sold as a complete set or individual wires?\u003c\/strong\u003e It is sold as one complete kit (unit count of 1) containing the coil wire and all eight spark plug wires together.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435480795,"sku":"SIE-18-8830-1","price":79.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-8830-1_lg__26191.1558131261.500.750.jpg?v=1785188709"},{"product_id":"spark-plug-wire-set-for-yamaha-f75-f80-f90-f100-four-stroke-outboards-replaces-oem-67f-82341-00-00-sierra-18-8847-1-4-wire-kevlar-core","title":"Sierra Spark Plug Wire Set 18-8847-1, Replaces 67F-82341-00-00, Fits Yamaha F75\/F80\/F90\/F100 Outboards","description":"\u003cp\u003eThe Sierra 18-8847-1 is a complete set of spark plug ignition wires engineered for Yamaha F75, F80, F90, and F100 outboard engines. Each wire uses a durable stainless steel wound conductor for maximum horsepower and engine performance, paired with corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity. A Kevlar core reinforces the wire for long-term durability and long service life, while premium silicone jacketing and boots provide ultimate high temperature protection where the wires route near the powerhead.\u003c\/p\u003e\u003cp\u003eThese wires also deliver superior RFI suppression, keeping electromagnetic and radio frequency interference away from sensitive onboard electronics and engine control systems while still delivering full voltage to each spark plug. The set is built to an exact fit design so installation is straightforward and matches the original wire routing and connector style, restoring reliable ignition performance on applicable Yamaha outboards.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8847-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Set Spark Plug Wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel, Kevlar Core, Silicone Jacket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Diameter:\u003c\/strong\u003e 8 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Spark Plug Connector, Distributor Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1.0 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Spark Plug Wire Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.75 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282373825\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 67F-82341-00-00, 67F-82342-00-00, 67F-82343-00-00, 67F-82344-00-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha F75 (2003-2017)\u003c\/li\u003e\n\u003cli\u003eYamaha F80 (1999-2003)\u003c\/li\u003e\n\u003cli\u003eYamaha F90 (2003-2017)\u003c\/li\u003e\n\u003cli\u003eYamaha F100 (1999-2003)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e67F-82341-00-00\u003c\/li\u003e\n\u003cli\u003e67F-82342-00-00\u003c\/li\u003e\n\u003cli\u003e67F-82343-00-00\u003c\/li\u003e\n\u003cli\u003e67F-82344-00-00\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-8847-1 spark plug wire set include?\u003c\/strong\u003e The 18-8847-1 is a set of spark plug wires with a stainless steel wound conductor, Kevlar core, and silicone jacketing and boots, sold as a complete matched set for the applicable Yamaha outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Yamaha outboards fit the 18-8847-1 wire set?\u003c\/strong\u003e This set fits Yamaha F75 (2003-2017), F80 (1999-2003), F90 (2003-2017), and F100 (1999-2003) outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-8847-1 replace?\u003c\/strong\u003e The Sierra 18-8847-1 set replaces Yamaha OEM numbers 67F-82341-00-00, 67F-82342-00-00, 67F-82343-00-00, and 67F-82344-00-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8847-1 a genuine Yamaha part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra aftermarket replacement built to an exact fit design, engineered as a direct equivalent to the listed Yamaha OEM wire numbers for the F75\/F80\/F90\/F100 outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the spark plug wires made from?\u003c\/strong\u003e The 18-8847-1 wires use a stainless steel wound conductor with a Kevlar core for durability and premium silicone jacketing and boots for high temperature protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires cause interference with electronic engine controls?\u003c\/strong\u003e No, the 18-8847-1 set is designed with superior RFI suppression, protecting sensitive electronic devices and engine control systems from radio frequency and electromagnetic interference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8847-1 set?\u003c\/strong\u003e The 18-8847-1 is sold as a complete set of spark plug wires sized to match the Yamaha F75, F80, F90, and F100 outboard ignition system, with a unit count of 1 set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire diameter on the 18-8847-1 set?\u003c\/strong\u003e Each wire in the 18-8847-1 set has an 8 millimeter diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8847-1 spark plug wire set weigh?\u003c\/strong\u003e The Sierra 18-8847-1 set weighs 0.75 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector types does the 18-8847-1 use?\u003c\/strong\u003e The set terminates in stainless steel spark plug connectors and distributor connectors for corrosion resistant, high-conductivity connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals on the 18-8847-1 corrosion resistant?\u003c\/strong\u003e Yes, the spark plug and distributor terminals on the 18-8847-1 are stainless steel for corrosion resistance and maximum conductivity in a marine environment.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435611867,"sku":"SIE-18-8847-1","price":116.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8847-1__03424.1722357210.500.750.jpg?v=1785188926"},{"product_id":"sierra-18-8828-1-premium-magforce-marine-spark-plug-wire-set-delco-6-8-cylinder-hei-ignition-white","title":"Sierra 18-8828-1 MagForce Spark Plug Wire Set for 5.0L V8 Delco HVS Engines 2005 and Up, White","description":"\u003cp\u003eThe Sierra 18-8828-1 MagForce Spark Plug Wire Set is a marine ignition wire set built for 5.0L V8 engines using Delco HVS ignition, 2005 and up. It is designed for 6 and 8 cylinder engines running Delco HEI ignitions, delivering maximum spark voltage to the plugs while shielding onboard electronics and engine control systems from RFI and EMI interference. The set is labeled 'Electronics Friendly,' making it a dependable choice on boats where sensitive electronic engine controls and marine electronics share space with the ignition system.\u003c\/p\u003e\u003cp\u003eEach wire uses a Kevlar core for durability and long service life, paired with a stainless steel wound conductor for consistent horsepower and engine performance. Premium silicone jacketing and boots protect the wires against high engine-bay temperatures, while corrosion resistant stainless steel spark plug and distributor terminals maintain strong conductivity in the marine environment. The distributor end uses moisture-proof, molded insulators and a screw down cap for a secure, weather-tight connection, and a high-quality conductive center carrier reinforcement keeps the conductor intact over time. The set includes two 22 inch wires, two 27 inch wires, two 31 inch wires, two 36-1\/2 inch wires, and one 21 inch coil wire, finished in white.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-8828-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel, Kevlar, Silicone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Stainless Steel Spark Plug Connector, Stainless Steel Distributor Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Delco HEI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark Plug Wire Lengths:\u003c\/strong\u003e (2) 22 inches, (2) 27 inches, (2) 31 inches, (2) 36-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Wire Length:\u003c\/strong\u003e (1) 21 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Count:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Cap Style:\u003c\/strong\u003e Screw down cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.81 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194550\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5.0L V8, Delco HVS ignition, 2005 \u0026amp; Up\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8828-1 spark plug wire set fit?\u003c\/strong\u003e The Sierra 18-8828-1 is designed for 5.0L V8 engines with Delco HVS ignition, 2005 and up, and is built for Delco 6 and 8 cylinder engines running Delco HEI ignitions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8828-1 set and how long are they?\u003c\/strong\u003e The set includes two 22 inch wires, two 27 inch wires, two 31 inch wires, two 36-1\/2 inch wires, and one 21 inch coil wire, for a total of 7 wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the 18-8828-1 spark plug wires?\u003c\/strong\u003e This Sierra MagForce set is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8828-1 set rated for HEI ignition systems?\u003c\/strong\u003e Yes, the Sierra 18-8828-1 is designed for use with Delco HEI ignitions on Delco 6 and 8 cylinder engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the spark plug and distributor terminals made of?\u003c\/strong\u003e The 18-8828-1 set uses corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill these wires interfere with onboard marine electronics?\u003c\/strong\u003e No, the Sierra 18-8828-1 MagForce wires are designed to be 'Electronics Friendly,' suppressing RFI and EMI so they do not interfere with electronic engine controls or other onboard electronics.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the core construction of the 18-8828-1 wires?\u003c\/strong\u003e Each wire in the 18-8828-1 set has a Kevlar core for durability combined with a stainless steel wound conductor for maximum horsepower and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the distributor end connect and seal?\u003c\/strong\u003e The distributor end of the 18-8828-1 set uses moisture-proof, molded distributor insulators with a screw down cap for a secure connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-8828-1 wire set weigh?\u003c\/strong\u003e The Sierra 18-8828-1 spark plug wire set weighs 1.81 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat jacketing material protects the wires from engine heat?\u003c\/strong\u003e The 18-8828-1 wires use premium silicone jacketing and boots for high temperature protection in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-8828-1 set a complete replacement kit?\u003c\/strong\u003e Yes, it is a complete set of 1, including all spark plug wires and the coil wire needed for a 5.0L V8 Delco HVS engine, 2005 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-8828-1 set include a coil wire?\u003c\/strong\u003e Yes, the set includes one 21 inch coil wire in addition to the eight spark plug wires.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435742939,"sku":"SIE-18-8828-1","price":106.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8828-1__57098.1739458927.500.750.jpg?v=1785188025"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/EMP-84-28009-MerCruiser-Ignition-Wire-Set__40788.1739477126.500.750.jpg?v=1785356979","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-engine-parts-systems-ignition-starting-spark-plugs-wires-spark-plug-wires-wire-sets.oembed?page=2","provider":"Good Vibes Marina","version":"1.0","type":"link"}