{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/marine-spark-plug-wire-lead-12-for-johnson-evinrude-outboards-replaces-omc-582365-sierra-18-8818-1-magforce","provider":"Good Vibes Marina","version":"1.0","type":"link"}