{"product_id":"marine-starter-solenoid-for-gm-engines-heavy-duty-replaces-mercury-89-18080-omc-985799-and-volvo-penta-3853869-sierra-18-5837","title":"Sierra 18-5837 Starter Solenoid, Replaces 984456 986505, Fits 1986-1992 GM V-6\/V-8 and 1990-1993 OMC King Cobra","description":"\u003cp\u003eThe Sierra 18-5837 is a starter solenoid built for standard rotation, clockwise-turning marine engines. It is the correct replacement solenoid for 1986-1992 GM V-6 and V-8 sterndrive engines and 1990-1993 OMC King Cobra applications, and it directly replaces OEM numbers 984456 and 986505. The solenoid mounts using an offset bolt pattern and carries SAE J1171 ignition protection certification, meeting the marine industry standard for spark suppression around fuel vapors.\u003c\/p\u003e\u003cp\u003eBuilt with a machined exterior housing rated at 1.4 KW, the 18-5837 is sized to fit the same footprint as the original equipment part it replaces, making it a straightforward swap for a failed or corroded solenoid. This is a common wear item on OMC Sterndrive and OMC Cobra starter systems, and keeping a correct-fit replacement on hand avoids downtime when the original solenoid fails to engage the starter.\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 18-5837\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Starter Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e Clockwise (standard rotation engines)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Protection Standard:\u003c\/strong\u003e SAE J1171\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage:\u003c\/strong\u003e 1.4 KW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 5.5 x 5 x 3.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.94 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999320056\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1986-1992 GM V-6, V-8 engines (standard rotation)\u003c\/li\u003e\n\u003cli\u003e1990-1993 OMC King Cobra\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e984456\u003c\/li\u003e\n\u003cli\u003e986505\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-5837 solenoid replace?\u003c\/strong\u003e The Sierra 18-5837 directly replaces OEM starter solenoid numbers 984456 and 986505, so either of those OEM part numbers can be cross-referenced to this solenoid.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5837 fit a 1990 OMC King Cobra?\u003c\/strong\u003e Yes, the Sierra 18-5837 is listed for 1990-1993 OMC King Cobra applications, which includes a 1990 model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this solenoid work on GM V-6 and V-8 sterndrive engines?\u003c\/strong\u003e Yes, the 18-5837 fits 1986-1992 GM V-6 and V-8 standard rotation engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5837 for standard or reverse rotation engines?\u003c\/strong\u003e It is built specifically for standard rotation (clockwise-turning) engines, not reverse rotation applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the mounting pattern on the Sierra 18-5837?\u003c\/strong\u003e The 18-5837 uses an offset bolt pattern for mounting to the starter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-5837 solenoid weigh?\u003c\/strong\u003e The solenoid weighs 1.94 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions of this solenoid?\u003c\/strong\u003e The Sierra 18-5837 measures 5.5 x 5 x 3.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5837 ignition protected for marine use?\u003c\/strong\u003e Yes, it is certified to SAE J1171, the marine standard for ignition protection against fuel vapor ignition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wattage rating of the Sierra 18-5837?\u003c\/strong\u003e The 18-5837 solenoid is rated at 1.4 KW.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the Sierra 18-5837 housing have?\u003c\/strong\u003e The solenoid has a machined exterior finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5837 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-5837 is manufactured and sold under the Sierra brand as part number 18-5837, identified by UPC 030999320056.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use OEM number 986505 to order this part?\u003c\/strong\u003e Yes, OEM number 986505 cross-references directly to the Sierra 18-5837 solenoid, along with OEM number 984456.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988326199515,"sku":"SIE-18-5837","price":33.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5837_lg__13944.1558128722.500.750.jpg?v=1785188250","url":"https:\/\/www.goodvibesmarina.com\/products\/marine-starter-solenoid-for-gm-engines-heavy-duty-replaces-mercury-89-18080-omc-985799-and-volvo-penta-3853869-sierra-18-5837","provider":"Good Vibes Marina","version":"1.0","type":"link"}