{"product_id":"sierra-18-8840-1-spark-plug-wire-set-6-cylinder-150-175-hp-outboard-ignition-lead-kit","title":"Sierra 18-8840-1 Spark Plug Wire Set for 150 \u0026 175 HP Outboard Engines","description":"\u003cp\u003eThe Sierra 18-8840-1 is an inductive spark plug wire set engineered for 150 and 175 hp outboard engines. The set includes two 14 inch wires and two 16 inch wires, giving each cylinder the correct reach without excess slack or strain on the terminals. Each wire uses a Kevlar core wound with a stainless steel conductor, paired with a Mag\/Wire wound core design that suppresses radio frequency interference (RFI) and electromagnetic interference (EMI) so onboard electronics run cleanly alongside the ignition system.\u003c\/p\u003e\u003cp\u003eThe wires are finished with premium silicone jacketing and boots for protection against the high heat found near the powerhead, and the terminal ends use corrosion resistant stainless steel spark plug and distributor terminals for consistent conductivity in the marine environment. Moisture-proof, molded distributor insulators seal out water intrusion at the distributor connection, while a high tensile strength membrane and nylon reinforcing tape add durability against vibration, chafing, and heat over the life of the set. This wire set is built to meet or exceed the performance of the original equipment wiring it replaces.\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 18-8840-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e 150 \u0026amp; 175 hp Outboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Lengths:\u003c\/strong\u003e Two 14 inch, Two 16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicone, Stainless Steel, Kevlar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Type:\u003c\/strong\u003e Mag\/Wire wound core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Material:\u003c\/strong\u003e Stainless steel spark plug and distributor terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulator:\u003c\/strong\u003e Moisture-proof, molded distributor insulators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 10.25 x 7.25 x 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.93 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194659\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e150 \u0026amp; 175 hp Outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-8840-1 wire set fit?\u003c\/strong\u003e The Sierra 18-8840-1 is built for 150 and 175 hp outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many wires come in the 18-8840-1 set and what lengths are they?\u003c\/strong\u003e The set includes two 14 inch wires and two 16 inch wires, sized for the 150 \u0026amp; 175 hp outboard engine layout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wire core made of?\u003c\/strong\u003e Each wire in the Sierra 18-8840-1 set uses a Kevlar core wound with a stainless steel conductor for durability and consistent conductivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this wire set help with radio or electronic interference?\u003c\/strong\u003e Yes. The Mag\/Wire wound core in the 18-8840-1 provides suppression of radio frequency interference (RFI) and electromagnetic interference (EMI).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a direct OEM replacement or an aftermarket part?\u003c\/strong\u003e Sierra 18-8840-1 is an aftermarket wire set engineered to meet or exceed the performance of the original equipment wiring it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-8840-1 spark plug wire set weigh?\u003c\/strong\u003e The Sierra 18-8840-1 wire set weighs 0.93 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the boots and jacketing made of?\u003c\/strong\u003e The wires use premium silicone jacketing and boots, chosen for high temperature protection near the outboard powerhead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the terminals resistant to corrosion?\u003c\/strong\u003e Yes, the 18-8840-1 uses corrosion resistant stainless steel spark plug and distributor terminals designed for the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat protects the distributor connection from moisture?\u003c\/strong\u003e Moisture-proof, molded distributor insulators seal the distributor connection on the Sierra 18-8840-1 set.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the box?\u003c\/strong\u003e The Sierra 18-8840-1 package contains one complete spark plug wire set: two 14 inch wires and two 16 inch wires.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-8840-1 different from Sierra's other outboard wire sets?\u003c\/strong\u003e The 18-8840-1 is specific to 150 \u0026amp; 175 hp outboards with two 14 inch and two 16 inch wires, while other Sierra sets such as the 18-8839-1 are built for different horsepower ranges with their own wire lengths.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988435382491,"sku":"SIE-18-8840-1","price":58.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-8840-1__15845.1739458953.500.750.jpg?v=1785188302","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-8840-1-spark-plug-wire-set-6-cylinder-150-175-hp-outboard-ignition-lead-kit","provider":"Good Vibes Marina","version":"1.0","type":"link"}