{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-28081-ignition-spark-plug-wire-set-for-6-cylinder-mercury-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}