{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-8822-1-magforce-marine-spark-plug-wire-set-replaces-mercruiser-84-816608q81-fits-mercruiser-sterndrive-engines","provider":"Good Vibes Marina","version":"1.0","type":"link"}