{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-28046-marine-spark-plug-wire-set-8-cylinder-generator-ignition-wires-mpn-118-28046","provider":"Good Vibes Marina","version":"1.0","type":"link"}