{"product_id":"arco-30470a-volvo-mercruiser-omc-starter-57-30470a","title":"Arco 30470A Hi-Torque Gear Reduction Starter – MerCruiser, Volvo Penta, OMC \u0026 Marine Power (57-30470A)","description":"\u003ch2\u003eArco 30470A Hi-Torque Permanent Magnet Gear Reduction Starter\u003c\/h2\u003e\u003cp\u003eThe Arco 30470A is a premium 1.7 KW hi-torque starter built to replace OEM units across a wide range of inboard and sterndrive engines — MerCruiser, Volvo Penta, OMC, and Marine Power included. Its permanent magnet gear reduction design delivers more cranking torque with less current draw than older wound-field starters, and the anodized casting with nickel-plated brush holder is built to hold up in the marine environment for the long haul. If you're dealing with a slow-cranking or failed starter on a 3.0–8.1L inboard, this is a direct-fit upgrade that covers an exceptionally broad range of OEM applications.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser inboard and sterndrive engines, 3.0–8.1L with 14″ flywheel\u003c\/li\u003e\n\u003cli\u003eVolvo Penta inboard and sterndrive engines\u003c\/li\u003e\n\u003cli\u003eOMC inboard sterndrive engines\u003c\/li\u003e\n\u003cli\u003eMarine Power engines\u003c\/li\u003e\n\u003cli\u003e9-tooth drive gear configuration required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces OEM Part Numbers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBRP\/OMC: 984456, 986505, 3850525, 3853982, 3854751, 3855177, 3857747, 3860566\u003c\/li\u003e\n\u003cli\u003eDelco: 9000735, 9000762, 9000768, 9000789, 9000819, 9000821, 9000839, 9000840, 9000849, 9000884, 9000885, 9000940\u003c\/li\u003e\n\u003cli\u003eMarine Power: 0174-000\u003c\/li\u003e\n\u003cli\u003eMercury: 50-12121A2, 50-12177A2, 50-806964A2, 50-806964A3, 50-806964A4, 50-812428A3, 50-812604A2, 50-822330A2, 50-864340A2, 50-8M8021116, 50-99418A2\u003c\/li\u003e\n\u003cli\u003eSierra: 18-5905, 18-5910, 18-5913, 18-6946\u003c\/li\u003e\n\u003cli\u003eVolvo: 3587625, 3850525-1, 3853982-1, 3854751-9, 3855177-6, 3856004-1, 3857747, 3860566, 3860764, 3885317\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1.7 KW hi-torque output for strong, reliable cranking\u003c\/li\u003e\n\u003cli\u003ePermanent magnet gear reduction design — lower current draw, longer service life\u003c\/li\u003e\n\u003cli\u003e9-tooth drive gear for correct flywheel engagement on 14″ flywheels\u003c\/li\u003e\n\u003cli\u003eAnodized casting and nickel-plated brush holder for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCovers 3.0–8.1L engine displacements across multiple brands\u003c\/li\u003e\n\u003cli\u003eSKU: 57-30470A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThe 30470A is one of the broadest-coverage inboard starters in the Arco lineup — its OEM cross-reference list spans MerCruiser, Volvo Penta, OMC, Delco, Sierra, and Marine Power, making it a strong choice when you need a reliable replacement without hunting down a brand-specific unit. Confirm your flywheel diameter (14″) and tooth count (9-tooth) before ordering, as these are the two most common fitment variables on inboard starters. For single-brand MerCruiser\/Crusader applications, also consider the \u003ca href=\"\/products\/arco-high-performance-starter-mercruiser-crusader-marine-power-57-30459\"\u003eArco 30459\u003c\/a\u003e (CCW) or \u003ca href=\"\/products\/arco-high-performance-starter-cw-rotation-mercruiser-crusader-marine-power-57-30460\"\u003eArco 30460\u003c\/a\u003e (CW). When replacing the starter, inspect the solenoid — the \u003ca href=\"\/products\/arco-heavy-duty-starter-solenoid-mercruiser-omc-volvo-penta-sw463\"\u003eArco SW463 Heavy-Duty Solenoid\u003c\/a\u003e covers MerCruiser, OMC, and Volvo Penta and is the most compatible option for this starter. It’s also worth picking up the \u003ca href=\"\/products\/arco-starter-mounting-bolt-kit-gear-reduction-starters-57-mbk450\"\u003eArco Starter Mounting Bolt Kit (MBK450)\u003c\/a\u003e — hardware often corrodes and should be replaced at the same time.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250826543140,"sku":"57-30470A","price":392.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/57-30470A.jpg?v=1786510750","url":"https:\/\/marisolmarine.com\/products\/arco-30470a-volvo-mercruiser-omc-starter-57-30470a","provider":"Marisol Marine Company","version":"1.0","type":"link"}