{"product_id":"mercury-serv-kit-300-hrs-8m0149930","title":"Mercury – 300 Hour Maintenance Kit | 3.4L V6 FourStroke Series | OEM Components | 8M0149930","description":"\u003ch2\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – 300 Hour Maintenance Kit | 3.4L V6 FourStroke Series | OEM Components | 8M0149930\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAsk anyone who spends real time on the water — the kind of boater who racks up hours chasing tide changes, hauling gear, or running a busy charter — and they’ll tell you the same thing: long-term reliability doesn’t happen by accident. It’s built through routine care and the right parts. The Mercury 8M0149930 300 Hour Maintenance Kit gives you that confidence you only get when you know your engine has been serviced with exactly what it needs. Whether you’re heading out before sunrise or easing in as the last boats are tying up, there’s a quiet peace that comes with knowing your 3.4L V6 FourStroke is protected, refreshed, and ready for whatever tomorrow brings.\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\"\u003eComplete \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e300-hour service kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for Mercury 3.4L V6 FourStroke outboards\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eIncludes \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eoil filter, fuel filter, thermostat, spark plugs, alternator belt, oil drain seal, anodes, and water pump repair kit\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHigh internal pleat-count filters for stronger debris capture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHeavy-duty electroplated housings to prevent corrosion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered and approved to exact Mercury Marine part standards\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eEn\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egine \u0026amp; Boat Compatibility\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury 3.4L V6 FourStroke 175–225–300hp outboards\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits engines with \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eserial number 2B529482 and higher\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for bay boats, offshore center consoles, pontoons, multi-engine rigs, aluminum fishing boats, and coastal service vessels\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e300-hour service isn’t just routine maintenance—it’s a reset button for your engine’s health. Once this kit is installed, you’ll notice how clean and steady the motor feels. The fresh spark plugs snap the combustion back into sync. The new fuel and oil filters clear out buildup that slowly robs efficiency. The thermostat restores proper cooling flow, and the water pump repair kit ensures your engine stays calm and controlled, even during long summertime pushes at higher RPM.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEverything feels tighter, smoother, and more responsive. That steady V6 thrum at idle comes back. Hole-shot performance feels sharper. Even gear shifts seem more deliberate and clean. And because the kit includes replacement anodes, you also restore critical corrosion protection — a must for anyone running brackish or saltwater.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury builds parts that hold up to rough chop, hot days, long drifts, and quick runs between spots. This maintenance kit is designed to match that same standard. Every component installs cleanly and predictably, without forcing or modification. It’s a straightforward service that gives your engine another long stretch of worry-free hours.\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 it’s time for a 300-hour service, cutting corners never pays off. Mercury OEM parts give you the exact fit and long-term quality your engine was engineered around.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrecise fitment for confident installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eGuaranteed filtration and cooling performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eLong\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e-term reliability in harsh marine environments\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBetter lifespan than many aftermarket alternatives\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eProtects your investment and helps maintain warranty compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThink of it as giving your FourStroke the same care Mercury technicians would — smart, thorough, and built to last.\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: Which engines does this maintenance 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 f\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury 3.4L V6 FourStroke outboards\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eserial number \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e2B529482 \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eand\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e higher\u003c\/span\u003e\u003c\/strong\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 OEM kit apart from aftermarket options?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM Mercury components offer proven durability, corrosion resistance, and exact engineering tolerances.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm this is the right kit for my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Ma\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etch your outboard’s serial number to the required range; if it’s 2B529482 or higher, this is the correct kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Is this kit suitable for saltwater and freshwater use?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely — the included anodes and corrosion-resistant components make it ideal for all environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. Each part is designed for a perfect fit, making this a clean, predictable service for most boat owners.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626553532707,"sku":"8M0149930","price":393.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8M0149930_Main.jpg?v=1760631437","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-serv-kit-300-hrs-8m0149930","provider":"PartsVu","version":"1.0","type":"link"}