{"product_id":"sierra-18-5820-starter-solenoid-for-mercury-mariner-outboards-replaces-89-818997a1","title":"Sierra 18-5820 Starter Solenoid for GM V-8 Marine Engines - Fits 450, 500, 500 Bulldog Models","description":"\u003cp\u003eThe Sierra 18-5820 is a starter solenoid built for GM V-8 marine engines, applied across the 450, 500, and 500 Bulldog engine models within specific serial number ranges. The solenoid is a core component of the starting circuit, carrying the high-current load from the battery to the starter motor when the ignition is engaged. Sierra manufactures replacement marine electrical components to match original engine equipment fitment, and the 18-5820 is specified for GM V-8 powerplants used in the 450 (1995-1996, serial numbers F347100-F347277), 500 (1994-1997, serial numbers F213293 \u0026amp; Up), and 500 Bulldog (1990-1996, serial numbers C577254 \u0026amp; Up) applications. Confirming the engine model and serial number before ordering ensures the correct solenoid is installed, since other GM V-8 engine variants such as the 454 Mag. Use different Sierra part numbers. The unit weighs 0.35 pounds and carries UPC 030999875914 for retail identification.\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 18-5820\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Starter Solenoid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e GM V-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999875914\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e450 GM V-8, 1995-1996, serial numbers F347100-F347277\u003c\/li\u003e\n\u003cli\u003e500 GM V-8, 1994-1997, serial numbers F213293 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003e500 GM V-8, 1994-1995, serial numbers F213293 \u0026amp; Up\u003c\/li\u003e\n\u003cli\u003e500 Bulldog GM V-8, 1990-1996, serial numbers C577254 \u0026amp; Up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are published for the Sierra 18-5820.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5820 solenoid fit?\u003c\/strong\u003e The Sierra 18-5820 fits GM V-8 marine engines in the 450, 500, and 500 Bulldog model lines, within specific serial number ranges for each model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5820 solenoid weigh?\u003c\/strong\u003e The Sierra 18-5820 starter solenoid weighs 0.35 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years does the 18-5820 cover for the 450 model?\u003c\/strong\u003e For the 450 GM V-8 engine, the Sierra 18-5820 is specified for the 1995-1996 model years, serial numbers F347100 through F347277.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5820 fit the 500 GM V-8 engine?\u003c\/strong\u003e Yes, the 500 GM V-8 engine uses the Sierra 18-5820 solenoid, covering the 1994-1997 model years with serial numbers F213293 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there a difference between the 500 and 500 Bulldog applications?\u003c\/strong\u003e Both the 500 and 500 Bulldog GM V-8 engines use the Sierra 18-5820 solenoid, but the 500 Bulldog covers the 1990-1996 model years starting at serial number C577254, while the standard 500 covers 1994-1997 starting at serial number F213293.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-5820 fit a 454 Mag. Engine?\u003c\/strong\u003e No, the 454 Mag. GM V-8 engine uses different Sierra solenoid part numbers (18-5816 or 18-5817 depending on model year), not the 18-5820.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5820 solenoid?\u003c\/strong\u003e The UPC for the Sierra 18-5820 starter solenoid is 030999875914.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-5820 solenoid made from?\u003c\/strong\u003e Sierra does not publish a material specification for the 18-5820 solenoid.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre there OEM cross-reference numbers for the 18-5820?\u003c\/strong\u003e No OEM cross-reference or replaces numbers are published for the Sierra 18-5820 solenoid.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat function does the 18-5820 solenoid perform in the engine?\u003c\/strong\u003e As a starter solenoid, the 18-5820 carries the high-current load from the battery to the starter motor when the ignition circuit is engaged, on applicable GM V-8 marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the 18-5820 is correct for my engine?\u003c\/strong\u003e Match your GM V-8 engine model (450, 500, or 500 Bulldog) and its serial number against the ranges specified for the Sierra 18-5820: F347100-F347277 for the 450, F213293 \u0026amp; Up for the 500, and C577254 \u0026amp; Up for the 500 Bulldog.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988325052635,"sku":"SIE-18-5820","price":42.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-5820_lg__62126.1558127711.500.750.jpg?v=1785329146","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5820-starter-solenoid-for-mercury-mariner-outboards-replaces-89-818997a1","provider":"Good Vibes Marina","version":"1.0","type":"link"}