{"product_id":"mercury-mercruiser-heavy-duty-sea-water-pump-impeller-kit-fits-mercury-4-5l-6-2l-mcm-mie-towsport-models-47-8m0137221","title":"Mercury – Heavy Duty Sea Water Pump Impeller Repair Kit | MerCruiser 4.5L \u0026 6.2L | Composite \u0026 Elastomer | 8M0137221","description":"\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Heavy Duty Sea Water Pump Impeller Repair Kit | MerCruiser 4.5L \u0026amp; 6.2L | Composite \u0026amp; Elastomer | 8M0137221\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen you spend enough days on the water, you learn to appreciate parts that \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimply\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e do their job without a fuss.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e That steady reliability becomes part of the boating experience—one less thing to worry about when you’re watching the horizon or drifting into your favorite cove. The Mercury 8M0137221 Heavy Duty Sea Water Pump Impeller Repair Kit is one of those behind-the-scenes components that keeps your engine cool, calm, and running exactly as it should. You install it once, feel the difference immediately, and forget about it until the next service interval \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003erolls around\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e. That kind of peace of mind is worth its weight in gold when you’re far from the dock.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFour-piece \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eheavy duty\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e water pump impeller repair kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIncludes replacement impeller, over-molded front wear plate, rear wear plate, and housing gasket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eD\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eesigned for consistent cooling flow and higher water volume\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDurable elastomer impeller maintains flexibility across wide temperature ranges\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to Mercury Marine OEM specifications for MerCruiser engines\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e4.5L MerCruiser V6 engines\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e (serial number 2A531163 and above)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eF\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e6.2L MerCruiser V8 engines\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e in sterndrive and inboard configurations within the listed serial ranges\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with select \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTowSport inboard engines\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for runabouts, sport cruisers, tow boats, and performance-focused sterndrive setups\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egood\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e cooling system doesn’t just protect the engine—it changes how the whole boat feels. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWith the 8M0137221 kit installed, water \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003emoves through the pump with a smooth\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esteady flow that keeps\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e operating temperatures consistent.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e You won’t feel that nervous hesitation when you throttle up, and you won’t be peeking at the temperature gauge every few minutes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe upgraded wear plates \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eare built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to hold up against sand, silt, and the occasional debris that slips through raw-water intakes. The impeller itself has a strong, flexible feel that resists cracking after long, hot days on the water. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePut\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e together, the parts fit cleanly, seal properly, and restore the pump’s efficiency so your engine can run the way it was designed to.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThis\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e is the kind of upgrade that makes each ride feel smoother—tight response, predictable cooling, no surprises.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen you’re maintaining a MerCruiser engine, cutting corners almost always costs more in the long run. An OEM Mercury Marine part is designed to match the exact dimensions and material requirements of the pump it’s going into. That means no forced fit, no questionable quality, and no early failures that catch you off guard.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYou’re not just buying a replacement part—you’re buying the confidence that comes with equipment engineered, tested, and proven by Mercury. With OEM components, you get better longevity, easier installation, and performance you can trust during the entire boating season. It’s practical, it’s reliable, and it’s the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esmart\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e choice for any boater who takes their time on the water seriously.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhich engines does this impeller kit fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt fits select 4.5L and 6.2L MerCruiser V6 and V8 engines \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewithin the\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e newer serial \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003enumber ranges\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What sets this kit apart from aftermarket versions?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Mercury’s material quality, precise engineering, and proven durability outperform generic alternatives.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm compatibility?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e C\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eheck your engine’s serial number and compare it to the ranges listed in your owner’s manual or service guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can this be used in saltwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes—its materials are designed for harsh marine environments, both freshwater and saltwater.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation simple?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Most experienced DIY boaters can install it, and professional shops can complete it quickly.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626555236643,"sku":"47-8M0137221","price":70.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0137221_main.jpg?v=1760631377","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-mercruiser-heavy-duty-sea-water-pump-impeller-kit-fits-mercury-4-5l-6-2l-mcm-mie-towsport-models-47-8m0137221","provider":"PartsVu","version":"1.0","type":"link"}