{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-8811-1-marine-spark-plug-wire-set-4-cylinder-est-electronic-ignition-for-mercury-mercruiser-and-omc-stern-drive-engines","provider":"Good Vibes Marina","version":"1.0","type":"link"}