{"product_id":"sierra-18-5913-1-marine-starter-for-late-model-gm-4-3l-5-0l-5-7l-14-inch-flywheel-replaces-50-812428a3-12v-11-tooth-gear-reduction","title":"Sierra 18-5913-1 Marine Starter for GM V-8 Engines, 12 3\/4 Inch Flywheel","description":"\u003cp\u003eThe Sierra 18-5913-1 is a marine starter engineered for GM V-8 powered stern drive and inboard engines, built to hold up against the corrosion, moisture, and vibration that shorten the life of automotive-grade starters. It is designed for a 12 3\/4 inch flywheel and covers a wide range of GM V-8 engine families including 454 Mag., 454 Mag. MPI, 454 Mag. MPI MIE, 454 EFI Ski, 465, 500, 500 Bulldog, and 502 Mag. Models across multiple production serial-number ranges.\u003c\/p\u003e\u003cp\u003eThis starter has been re-engineered from earlier designs to address the most common marine starter failure points. It features an improved solenoid design for more reliable engagement, an upgraded connection between the solenoid and commutator brushes, an upgraded planetary seal to help reduce water intrusion, and a more robust clutch gear spring to extend service life under repeated cranking cycles. The housing and internal components are metal construction, and the unit weighs 9.1 pounds with overall dimensions of 11.6 x 7.7 x 6.6 inches. It draws 1.4 kilowatts and is backed by a limited lifetime warranty.\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 18-5913-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 11.6 x 7.7 x 6.6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWattage:\u003c\/strong\u003e 1.4 kilowatts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlywheel Size:\u003c\/strong\u003e 12 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e GM V-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Lifetime\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282377786\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e454 Mag. GM V-8, 1986-1994 (serial range A631894-F304999)\u003c\/li\u003e\n\u003cli\u003e454 Mag. GM V-8, 1995-1997 (serial range F305000-K999999)\u003c\/li\u003e\n\u003cli\u003e454 Mag. MPI GM V-8, 1994-1997 (serial range F115700-K999999)\u003c\/li\u003e\n\u003cli\u003e454 Mag. MPI GM V-8, 1998 \u0026amp; Up (serial L010029 \u0026amp; Up)\u003c\/li\u003e\n\u003cli\u003e454 Mag. MPI MIE GM V-8, 1996-1997 (serial range F820100-K999999)\u003c\/li\u003e\n\u003cli\u003e454 EFI Ski GM V-8, 1995-1996 (serial range F215800-F820099)\u003c\/li\u003e\n\u003cli\u003e465 GM V-8, 1990-1994 (serial range C849992-F213244)\u003c\/li\u003e\n\u003cli\u003e500 GM V-8, 1994-1997 (serial F213293 \u0026amp; Up)\u003c\/li\u003e\n\u003cli\u003e500 Bulldog GM V-8, 1990-1996 (serial C577254 \u0026amp; Up)\u003c\/li\u003e\n\u003cli\u003e502 Mag. Bravo GM V-8, 1990-1993 (serial range C878221-F114528)\u003c\/li\u003e\n\u003cli\u003e502 Mag. MPI GM V-8, 1993-1997 (serial range D840650-K999999)\u003c\/li\u003e\n\u003cli\u003e502 Mag. MPI GM V-8, 1998 \u0026amp; Up (serial L017000 \u0026amp; Up)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-5913-1 starter fit?\u003c\/strong\u003e The 18-5913-1 fits GM V-8 marine engines across several families, including 454 Mag., 454 Mag. MPI, 454 Mag. MPI MIE, 454 EFI Ski, 465, 500, 500 Bulldog, and 502 Mag., spanning production years from 1986 through 1998 and up depending on the specific engine serial number range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size flywheel does this starter require?\u003c\/strong\u003e This starter is designed for a 12 3\/4 inch flywheel, matching the late model GM V-8 configuration it is built for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-5913-1 starter weigh?\u003c\/strong\u003e It weighs 9.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-5913-1 starter?\u003c\/strong\u003e It measures 11.6 x 7.7 x 6.6 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the starter housing made of?\u003c\/strong\u003e The 18-5913-1 is constructed of metal for durability in marine engine compartments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat electrical rating does this starter draw?\u003c\/strong\u003e The 18-5913-1 is rated at 1.4 kilowatts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this starter an improvement over older marine starter designs?\u003c\/strong\u003e Yes, the 18-5913-1 has been re-engineered with an improved solenoid design, an upgraded connection between the solenoid and commutator brushes, an upgraded planetary seal to help reduce water intrusion, and a more robust clutch gear spring for longer service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5913-1 come with a warranty?\u003c\/strong\u003e Yes, it is backed by a limited lifetime warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if 18-5913-1 is the correct starter for my 454 Mag. Engine?\u003c\/strong\u003e Confirm your 454 Mag. Engine's serial number falls within one of the covered ranges: A631894-F304999 for 1986-1994, F305000-K999999 for 1995-1997, F115700-K999999 for the MPI variant 1994-1997, or L010029 and up for 1998 and later MPI models, since the 18-5913-1 covers these specific ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-5913-1?\u003c\/strong\u003e Ordering the Sierra 18-5913-1 includes one complete starter unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5913-1 fit the 502 Mag. Engine?\u003c\/strong\u003e Yes, it fits the 502 Mag. Bravo GM V-8 (serial range C878221-F114528, 1990-1993) as well as the 502 Mag. MPI GM V-8 for 1993-1997 (serial range D840650-K999999) and 1998 and up (serial L017000 and up).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-5913-1 designed to resist water intrusion?\u003c\/strong\u003e Yes, this starter includes an upgraded planetary seal specifically engineered to help reduce water intrusion in marine environments.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988346319067,"sku":"SIE-18-5913-1","price":213.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5913-1_b__83796.1753840686.500.750.jpg?v=1785189098","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5913-1-marine-starter-for-late-model-gm-4-3l-5-0l-5-7l-14-inch-flywheel-replaces-50-812428a3-12v-11-tooth-gear-reduction","provider":"Good Vibes Marina","version":"1.0","type":"link"}