{"title":"Mercury 175-200-225-250-300 V6 (3.4L) \u0026 V8 (4.6L) 300 Hour Kits","description":"","products":[{"product_id":"flush-m-mercury-outboard-flushing-solution-75-450hp-models","title":"Flush-M - Mercury Outboard Flushing Solution - Black - 75-450HP Models","description":"\u003cp\u003eThe Flush-M permanently replaces the OEM flush plug, making engine flushing quick and easy so you can spend more time on the water.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"Apple-converted-space\"\u003eThe Flush-M is specifically designed to permanently replace the OEM flush plug with the part number #22-888958001 found on late model Four Stroke Mercury Outboard Engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"Apple-converted-space\"\u003eIts unique features simplify repetitive engine flushing and is a must-have for single and multiple-engine boats alike.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003e\u003cspan class=\"Apple-converted-space\"\u003eFlush-M is compatible with Verado, Pro XS, FourStroke, and SeaPro series engines in all HP ratings from 75HP - 450HP.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlush-M have integrated \"Seasonal Solutions' for users in both warm and freezing climates.\u003cbr\u003e\u003cbr\u003eFlush-M significantly simplifies routine engine flushing, whilst exhibiting itself attractively on single and multiple engine boats.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eDimensions\u003c\/p\u003e\n\u003cp\u003e-H: 54.82 mm\u003cbr\u003e-W: 53.17 mm\u003cbr\u003e-L: 43.19 mm\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eFlush-M FAQ's\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is Flush-M different to a Gardena?\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003eMost noticeably, the Flush-M takes the universal practicality of a quick connect and merges it with an accurately engineered base that cams perfectly securing itself to the Mercury outboard engine cowling. This is a key feature that facilitates a watertight seal that protects the engine and wiring harness from corrosion. Some additional key differences of the Flush-M include, a larger hole for increased water flow, a conical port to sealing against the cap, and a wrench color for installation leverage.\u003c\/p\u003e\n\u003cp\u003eFlush-M utilises a Gardena style connector to make our product a universal application for our customers around the world. A universal connection means customers are not forced to purchase additional uniquely engineered quick connects that cannot be sourced locally and increase the end product price.\u003cbr\u003e\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI operate my Mercury in freshwater, why should I flush at all?\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003eOperating in freshwater has the same risks of your engine picking up foreign material as salt water engines do. Be it dirty lake water, running through mud and weed or simply picking up sand from reversing of the shoreline. Your engine cooling passages are fractions of an inch even on larger HP models as well as the associated hardware such as thermostats and check valves are all susceptible to clogging and fouling. Flushing is a sure way of expelling any foreign matter and keeping your investment safe from overheating.\u003cbr\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003eMy boat has an automated flushing system, why do I need Flush-M?\u003c\/strong\u003e\u003cbr\u003eHaving Flush-M installed on vessels with auto-flushing is insurance against a failure of these systems. We highly recommend the redundancy Flush-M offers in these situations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the \u003c\/strong\u003e\u003cstrong\u003eFlush-M restrict water flow when flushing?\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003eNo, the narrowest part of the Flush-M water passage is larger than the diameter of the engines associated internal flushing hoses\u003cspan\u003e \u003c\/span\u003eand or check valve inlet\/ outlet. \u003cbr\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003eIs the Flush-M durable?\u003c\/strong\u003e\u003cbr\u003eThe Flush-M is made in an injection mold process and has added UV inhibitors rendering the end product extremely tough and UV stable even for the full time Florida sun.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does Flush-M differ from the OEM sealed flush plug?\u003c\/strong\u003e\u003cbr\u003eFlush-M primarily expedites and makes the fresh water engine flushing procedure far easier, as it is permanent installation which uses universal hose quick connects that facilitate immediate flushing.\u003c\/p\u003e\n\u003cp\u003eThe Flush-M has also been engineered with a few unique features:\u003c\/p\u003e\n\u003cp\u003e#1 The flush-M cap is not only aesthetic but also plugs and seals the flush port inhibiting water egress in the instance that the engines check valve has failed or fouled. *Cap is secure up to +-20PSI.\u003c\/p\u003e\n\u003cp\u003e#2 Operators in freezing climates can punch out the sacrificial cap seal to facilitate drainage of residual water that could otherwise freeze and rupture internal flush hoses. This is an irreversible step which replicates the 2 vent holes in the OEM plug.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIs the Flush-M watertight?\u003c\/strong\u003e\u003cbr\u003eYes it is entirely. Flush-M comes ready to use out of the box and includes a new cowling wafer style O'ring to ensure a watertight seal. The Flush-M base and retaining tabs are the exact dimensions of the OEM plug in which it replaces, insuring a perfect watertight and firm seal.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCan I operate my engine on the Flush-M?\u003c\/b\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003eWe recommend customers follow their operators manual and use the Flush-M in the same manner as the manual indicates to use the OEM flush port. \u003cbr\u003eWe prefer customers to use the Flush-M with the engine off.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMy boat has multiple engines, is there sufficient space for the Flush-M and a hose between the cowlings?\u003c\/b\u003e\u003cbr\u003eYes there is, the Flush-M has conducted all R\u0026amp;D on a quad engine vessel for over a year without space being an issue. We recommend using a flexible elastic hose with a on\/ off valve at the quick connect for ease of use.\u003c\/p\u003e\n\u003cp\u003eAnother easy way to create more space is to flush the engines in sequence from the starboard most engine, trimming it up slightly creating clearance from the cowling of the next inboard engine that is at rest in the down position.\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eThe Flush-M can be permanently installed to your engine cowling by following these simple steps:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eRemove the original OEM plug from the engine cowling.\u003c\/li\u003e\n\u003cli\u003eUnscrew the OEM plug from the 3\/4\" female hose receptacle.\u003c\/li\u003e\n\u003cli\u003eSeparate the OEM plug from the lanyard by rotating it in a counterclockwise rotation until free.\u003c\/li\u003e\n\u003cli\u003eFit the Flush-M to the lanyard and the ¾\" female hose receptacle.\u003c\/li\u003e\n\u003cli\u003eInstall the Flush-M back into the engine cowling, securing it in place with a ¼ turn in a clockwise rotation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e*If required, use an 11\/16th wrench on the male quick connect collar for added leverage. Do not overtighten past ¼ turn.\u003c\/p\u003e\n\u003cp\u003eYour engine is now ready to be operated or flushed.\u003cbr\u003eTo flush, simply remove the flushing cap and attach a hose to the Flush-M utilizing the included quick connector. Refit the cap upon competition.\u003c\/p\u003e","brand":"Flush-M","offers":[{"title":"Default Title","offer_id":45626356924707,"sku":"PV1000487","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/dsc_0099_2.jpg?v=1739377702"},{"product_id":"mercury-v8-4-6l-four-stroke-300-hour-service-kit-seapro-and-proxs-with-torpedo-lower-unit-only-8m0149931","title":"Mercury – 300 Hour Maintenance Kit | 4.6L V8 SeaPro \u0026 Pro XS CMS | Full Service Components | 8M0149931","description":"\u003ch2\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – 300 Hour Maintenance Kit | 4.6L V8 SeaPro \u0026amp; Pro XS CMS | Full Service Components | 8M0149931\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\"\u003eThere’s something reassuring about knowing your engine is ready for another long season before you even leave the dock. When you fish hard, run long distances, or put real hours on your boat, having a dependable maintenance routine becomes part of the rhythm of boating. The Mercury 300 Hour Maintenance Kit 8M0149931 brings that peace of mind into one neatly organized package. You open the box, look over the parts, and you just know — everything you need to keep your V8 running smooth, cool, and confident is right here. It’s the kind of kit that makes you feel prepared, whether you’re chasing early-morning bait schools or hauling gear back across rough afternoon chop.\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\u003cspan data-preserver-spaces=\"true\"\u003eComplete 300-hour service kit for Mercury 4.6L V8 SeaPro and Pro XS engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eConventional MidSection (CMS)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e models with serial number 2B529482 and above\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, oil drain seal, spark plugs, thermostat, alternator belt, water pump repair kit, and anodes\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePremium internal pleat-count filters for high-efficiency filtration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHeavy-duty electroplated housings for corrosion resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to meet strict Mercury Marine OEM standards for reliability\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\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury 4.6L V8 SeaPro outboards\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury 4.6L V8 Pro XS outboards\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCMS (Conventional MidSection)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e platforms as well as \u003cstrong\u003eTorpedo lower units\u003c\/strong\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for high-hour commercial vessels, guide boats, offshore rigs, bay boats, and heavy-use fishing setups\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eNot compatible with Torque Master lower units\u003c\/span\u003e\u003c\/strong\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\"\u003eThis kit isn’t just a box of parts — it’s a full reset for an engine that works hard. Ea\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ech component plays its role in bringing back that tight, refined feel you notice right after a service. Fresh filters clear out the restriction that slowly builds over time, letting your engine breathe freely. New spark plugs sharpen throttle response, giving you that crisp ignition snap that makes a V8 sound alive. Th\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ee thermostat and water pump components help keep temperatures steady, which matters a lot on long runs where even small cooling inconsistencies can add up.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYou’ll also appreciate how precise the alternator belt fitment is. A worn belt can squeal, slip, or create tiny fluctuations you may not hear — but you’ll definitely feel them in uneven charging or battery strain. Replacing it during your 300-hour service keeps electrical systems stable and strong.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eAnd those anodes? They’re your quiet guardians, taking the punishment so your engine’s internal metal doesn’t. Swapping them out ensures continued protection, especially if you run in brackish or saltwater environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe whole kit installs cleanly because every part is designed for your exact engine. No guesswork, no hunting down mismatched components. Just a solid day of maintenance that rewards you every time you push the throttle forward.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury builds each part to match your engine’s tolerances exactly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReliable long-term protection for high-hour engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFilters and seals last longer and perform better than most aftermarket options\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSaves money by preventing premature wear and bigger repair bills\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEverything fits correctly the first time — no frustration, no surprises\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf a fellow boater asked which kit to trust, you’d point them to this one. It’s simply the most reliable way to service a hardworking V8.\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 kit fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efits Mercury \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e4.6L V8 SeaPro and Pro XS CMS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e outboards with serial numbers \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e2B529482 and 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 makes this different from aftermarket service kits?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM parts match Mercury’s exact specifications, ensuring tighter fitment, longer life, and dependable performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know this is the correct kit for my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e M\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eatch your serial number and confirm your motor uses the Conventional MidSection design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can this kit be used for saltwater boats?\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 are ideal for both saltwater and freshwater use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation manageable for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. Anyone familiar with routine outboard service will find the process straightforward, especially with all parts included.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626532397347,"sku":"8M0149931","price":418.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8M0149931_Main.jpg?v=1760631432"},{"product_id":"partsvu-lower-unit-gear-lube-oil-pump-f-standard-quart-bottles-fits-3-8-16-drain-plug-includes-8mm-adapter-pv1005051","title":"PartsVu - Lower Unit Gear Lube Oil Pump - f\/ Standard Quart Bottles - Fits 3\/8\" - 16 drain plug - Includes 8mm adapter - PV1005051","description":"\u003cp\u003e\u003cstrong\u003ePartsVu - Lower Unit Gear Lube Oil Pump  - f\/ Standard Quart Bottles - Fits 3\/8\" - 16 drain plug - Includes 8mm adapter - PV1005051 (gear lube sold separately)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA must have for every DIY mechanic, this versatile lower unit gear lube pump takes the guesswork out of the job. Simply drain the old gear oil, attach the pump, efficiently and effectively pump in the new oil, and get back out on the water for more boating fun!\u003c\/p\u003e\n\u003cp\u003eWith the included adapter, this pump will fit \u003cem\u003e\u003cstrong\u003emost \u003c\/strong\u003e\u003c\/em\u003eall outboards and sterndrives, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYamaha\u003c\/li\u003e\n\u003cli\u003eMercury \/ MerCruiser\u003c\/li\u003e\n\u003cli\u003eSuzuki\u003c\/li\u003e\n\u003cli\u003eTohatsu\u003c\/li\u003e\n\u003cli\u003eHonda\u003c\/li\u003e\n\u003cli\u003eJohnson \/ Evinrude\u003c\/li\u003e\n\u003cli\u003eOMC\u003c\/li\u003e\n\u003cli\u003eCobra\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMost all outboards and sterndrives produced by US manufacturers will use the standard 3\/8\" fitting. \u003c\/p\u003e\n\u003cp\u003eMost all non-US outboard and sterndrives will require the 8mm adapter installed on top of the 3\/8\" fitting.\u003c\/p\u003e\n\u003cp\u003eThe pumps cap adapter fits all standard quart bottles with a 28mm or 1.125\" opening. \u003c\/p\u003e\n\u003cp\u003eA rubber cap is included to keep the pump clean in between uses.\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":46932990066979,"sku":"PV1005051","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/yamwpump.jpg?v=1698781778"},{"product_id":"mercury-v8-46l-four-stroke-300-hour-service-kit-10w-30-seapro-and-proxs-with-torpedo-lower-unit-only-8m0149931","title":"Mercury V8 (4.6L) Four Stroke 300 Hour Service Kit 10W-30 - Seapro and ProXS with Torpedo Lower Unit Only - 8M0149931","description":"\u003cp\u003eWant to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eoil analysis kits\u003c\/a\u003e. Results are typically received in a few days via email. \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eShop now\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eMercury | 300 Hour Service Kit | V8 4.6L FourStroke|\u003c\/h2\u003e\n\u003ch2\u003e8M0149931\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMercury V8 (4.6L) FourStroke 300 Hour Service Kit – 8M0149931\u003c\/strong\u003e provides the essential components required to perform the recommended 300-hour maintenance on Mercury \u003cstrong\u003e4.6L V8 FourStroke outboards\u003c\/strong\u003e. This complete kit includes the necessary engine oil, gear lube, filters, ignition components, cooling system parts, and service items required to properly maintain your engine.\u003c\/p\u003e\n\u003cp\u003eThe 300-hour service interval addresses several critical wear components that help maintain engine reliability, cooling efficiency, and overall performance. By bundling the required maintenance parts together, this kit helps simplify scheduled service and ensures your Mercury V8 FourStroke continues operating smoothly and efficiently.\u003c\/p\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Gallon Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 x\u003c\/strong\u003e Quarts Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Quart Mercury High Performance Gear Lube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Oil Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x\u003c\/strong\u003e Gearcase Drain Seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Thermostat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpark Plugs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Alternator Belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Water Pump Repair Kit\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAnodes\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain proper engine lubrication\u003c\/strong\u003e with fresh Mercury marine engine oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect internal components\u003c\/strong\u003e with a replacement oil filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport clean fuel delivery\u003c\/strong\u003e with a new fuel filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain cooling system efficiency\u003c\/strong\u003e with a thermostat and water pump repair kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure proper ignition performance\u003c\/strong\u003e with new spark plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect charging system reliability\u003c\/strong\u003e with a replacement alternator belt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevent corrosion\u003c\/strong\u003e with replacement anodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury V8 FourStroke Outboards – 4.6L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47183279194403,"sku":"PVM00136","price":537.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0149931_2.jpg?v=1702391263"},{"product_id":"mercury-v8-46l-four-stroke-300-hour-service-kit-25w-40-synthetic-blend-seapro-and-proxs-with-torpedo-lower-unit-only-8m0149931","title":"Mercury V8 (4.6L) Four Stroke 300 Hour Service Kit 25W-40 Synthetic Blend - Seapro and ProXS with Torpedo Lower Unit Only - 8M0149931","description":"\u003cp\u003eWant to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eoil analysis kits\u003c\/a\u003e. Results are typically received in a few days via email. \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eShop now\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eMercury | 300 Hour Service Kit | V8 4.6L FourStroke | 8M0149931\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMercury V8 (4.6L) FourStroke 300 Hour Service Kit – 8M0149931\u003c\/strong\u003e provides the key components needed to complete the recommended 300-hour maintenance on Mercury \u003cstrong\u003e4.6L V8 FourStroke outboards\u003c\/strong\u003e. This complete service kit includes Mercury 25W-40 synthetic blend marine engine oil along with the essential filters, ignition components, cooling system parts, and service items required to keep your outboard operating reliably.\u003c\/p\u003e\n\n\u003cp\u003eThe 300-hour maintenance interval addresses several critical wear items that help maintain proper lubrication, cooling efficiency, and ignition performance. By combining the necessary service components into one convenient kit, Mercury simplifies scheduled maintenance and helps ensure your V8 FourStroke engine continues performing at its best.\u003c\/p\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Gallon 25W-40 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 x\u003c\/strong\u003e Quarts 25W-40 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Quart Mercury High Performance Gear Lube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Oil Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x\u003c\/strong\u003e Gearcase Drain Seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Thermostat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpark Plugs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Alternator Belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Water Pump Repair Kit\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAnodes\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain proper engine lubrication\u003c\/strong\u003e with Mercury 25W-40 synthetic blend marine engine oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect internal engine components\u003c\/strong\u003e with a replacement oil filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport reliable fuel delivery\u003c\/strong\u003e with a new fuel filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain cooling system efficiency\u003c\/strong\u003e with a thermostat and water pump repair kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure consistent ignition performance\u003c\/strong\u003e with replacement spark plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain charging system reliability\u003c\/strong\u003e with a new alternator belt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect against corrosion\u003c\/strong\u003e with replacement anodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury V8 FourStroke Outboards – 4.6L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47183279259939,"sku":"PVM00139","price":558.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0149931_4.jpg?v=1702391263"},{"product_id":"mercury-v8-46l-four-stroke-300-hour-service-kit-10w-30-synthetic-blend-seapro-and-proxs-with-torpedo-lower-unit-only-8m0149931","title":"Mercury V8 (4.6L) Four Stroke 300 Hour Service Kit 10W-30 Synthetic Blend - Seapro and ProXS with Torpedo Lower Unit Only - 8M0149931","description":"\u003cp\u003eWant to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eoil analysis kits\u003c\/a\u003e. Results are typically received in a few days via email. \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eShop now\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eMercury | 300 Hour Service Kit | V8 4.6L FourStroke | 8M0149931\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMercury V8 (4.6L) FourStroke 300 Hour Service Kit – 8M0149931\u003c\/strong\u003e includes the essential components required to complete the recommended 300-hour maintenance on Mercury \u003cstrong\u003e4.6L V8 FourStroke outboards\u003c\/strong\u003e. This comprehensive kit includes Mercury 10W-30 synthetic blend marine engine oil along with the key filters, cooling system components, ignition parts, and service items needed to properly maintain your outboard.\u003c\/p\u003e\n\n\u003cp\u003eThe 300-hour service interval addresses critical wear components to help maintain engine reliability, cooling performance, and overall efficiency. By packaging the required maintenance parts together, this kit simplifies scheduled service and helps keep your Mercury V8 FourStroke engine running smoothly.\u003c\/p\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Gallon 10W-30 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 x\u003c\/strong\u003e Quarts 10W-30 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Quart Mercury High Performance Gear Lube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Oil Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x\u003c\/strong\u003e Gearcase Drain Seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Thermostat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpark Plugs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Alternator Belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Water Pump Repair Kit\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAnodes\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain proper engine lubrication\u003c\/strong\u003e with Mercury 10W-30 synthetic blend marine engine oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect engine components\u003c\/strong\u003e with a replacement oil filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure clean fuel delivery\u003c\/strong\u003e with a new fuel filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain cooling system performance\u003c\/strong\u003e with a thermostat and water pump repair kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure consistent ignition\u003c\/strong\u003e with replacement spark plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain charging system reliability\u003c\/strong\u003e with a new alternator belt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect against corrosion\u003c\/strong\u003e with replacement anodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury V8 FourStroke Outboards – 4.6L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47183279325475,"sku":"PVM00137","price":558.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0149931_1.jpg?v=1702391263"},{"product_id":"mercury-v8-46l-four-stroke-300-hour-service-kit-25w-40-seapro-and-proxs-with-torpedo-lower-unit-only-8m0149931","title":"Mercury V8 (4.6L) Four Stroke 300 Hour Service Kit 25W-40 - Seapro and ProXS with Torpedo Lower Unit Only - 8M0149931","description":"\u003cp\u003eWant to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eoil analysis kits\u003c\/a\u003e. Results are typically received in a few days via email. \u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\"\u003eShop now\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eMercury | 300 Hour Service Kit | V8 4.6L FourStroke | 8M0149931\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMercury V8 (4.6L) FourStroke 300 Hour Service Kit – 8M0149931\u003c\/strong\u003e provides the essential components required to perform the recommended 300-hour maintenance on Mercury \u003cstrong\u003e4.6L V8 FourStroke outboards\u003c\/strong\u003e. This complete maintenance kit includes the necessary engine oil, gear lube, filters, ignition components, and cooling system parts needed to keep your Mercury outboard performing reliably.\u003c\/p\u003e\n\n\u003cp\u003eCompleting the 300-hour service helps maintain proper lubrication, cooling efficiency, and ignition performance. By packaging the required service components together, this kit simplifies scheduled maintenance and helps ensure your Mercury V8 FourStroke continues operating at peak performance.\u003c\/p\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Gallon 25W-40 Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 x\u003c\/strong\u003e Quarts 25W-40 Marine Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Quart Mercury High Performance Gear Lube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Oil Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x\u003c\/strong\u003e Gearcase Drain Seals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Thermostat\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpark Plugs\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Alternator Belt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Water Pump Repair Kit\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAnodes\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain proper lubrication\u003c\/strong\u003e with Mercury 25W-40 marine engine oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect internal engine components\u003c\/strong\u003e with a replacement oil filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport reliable fuel delivery\u003c\/strong\u003e with a new fuel filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain cooling system efficiency\u003c\/strong\u003e with a thermostat and water pump repair kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure proper ignition performance\u003c\/strong\u003e with replacement spark plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain charging system reliability\u003c\/strong\u003e with a new alternator belt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect against corrosion\u003c\/strong\u003e with replacement anodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercury V8 FourStroke Outboards – 4.6L\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47183279391011,"sku":"PVM00138","price":537.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0149931_3.jpg?v=1702391264"},{"product_id":"flush-m-mercury-outboard-flushing-solution-white-75-450hp-models","title":"Flush-M - Mercury Outboard Flushing Solution - White - 75-450HP Models","description":"\u003cp\u003eThe Flush-M permanently replaces the OEM flush plug, making engine flushing quick and easy so you can spend more time on the water.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"Apple-converted-space\"\u003eThe Flush-M is specifically designed to permanently replace the OEM flush plug with the part number #22-888958001 found on late model Four Stroke Mercury Outboard Engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"Apple-converted-space\"\u003eIts unique features simplify repetitive engine flushing and is a must-have for single and multiple-engine boats alike.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cstrong\u003e\u003cspan class=\"Apple-converted-space\"\u003eFlush-M is compatible with Verado, Pro XS, FourStroke, and SeaPro series engines in all HP ratings from 75HP - 450HP.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlush-M have integrated \"Seasonal Solutions' for users in both warm and freezing climates.\u003cbr\u003e\u003cbr\u003eFlush-M significantly simplifies routine engine flushing, whilst exhibiting itself attractively on single and multiple engine boats.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eDimensions\u003c\/p\u003e\n\u003cp\u003e-H: 54.82 mm\u003cbr\u003e-W: 53.17 mm\u003cbr\u003e-L: 43.19 mm\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003eFlush-M FAQ's\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is Flush-M different to a Gardena?\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003eMost noticeably, the Flush-M takes the universal practicality of a quick connect and merges it with an accurately engineered base that cams perfectly securing itself to the Mercury outboard engine cowling. This is a key feature that facilitates a watertight seal that protects the engine and wiring harness from corrosion. Some additional key differences of the Flush-M include, a larger hole for increased water flow, a conical port to sealing against the cap, and a wrench color for installation leverage.\u003c\/p\u003e\n\u003cp\u003eFlush-M utilises a Gardena style connector to make our product a universal application for our customers around the world. A universal connection means customers are not forced to purchase additional uniquely engineered quick connects that cannot be sourced locally and increase the end product price.\u003cbr\u003e\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eI operate my Mercury in freshwater, why should I flush at all?\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003eOperating in freshwater has the same risks of your engine picking up foreign material as salt water engines do. Be it dirty lake water, running through mud and weed or simply picking up sand from reversing of the shoreline. Your engine cooling passages are fractions of an inch even on larger HP models as well as the associated hardware such as thermostats and check valves are all susceptible to clogging and fouling. Flushing is a sure way of expelling any foreign matter and keeping your investment safe from overheating.\u003cbr\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003eMy boat has an automated flushing system, why do I need Flush-M?\u003c\/strong\u003e\u003cbr\u003eHaving Flush-M installed on vessels with auto-flushing is insurance against a failure of these systems. We highly recommend the redundancy Flush-M offers in these situations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the \u003c\/strong\u003e\u003cstrong\u003eFlush-M restrict water flow when flushing?\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003eNo, the narrowest part of the Flush-M water passage is larger than the diameter of the engines associated internal flushing hoses\u003cspan\u003e \u003c\/span\u003eand or check valve inlet\/ outlet. \u003cbr\u003e\u003cem\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003eIs the Flush-M durable?\u003c\/strong\u003e\u003cbr\u003eThe Flush-M is made in an injection mold process and has added UV inhibitors rendering the end product extremely tough and UV stable even for the full time Florida sun.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does Flush-M differ from the OEM sealed flush plug?\u003c\/strong\u003e\u003cbr\u003eFlush-M primarily expedites and makes the fresh water engine flushing procedure far easier, as it is permanent installation which uses universal hose quick connects that facilitate immediate flushing.\u003c\/p\u003e\n\u003cp\u003eThe Flush-M has also been engineered with a few unique features:\u003c\/p\u003e\n\u003cp\u003e#1 The flush-M cap is not only aesthetic but also plugs and seals the flush port inhibiting water egress in the instance that the engines check valve has failed or fouled. *Cap is secure up to +-20PSI.\u003c\/p\u003e\n\u003cp\u003e#2 Operators in freezing climates can punch out the sacrificial cap seal to facilitate drainage of residual water that could otherwise freeze and rupture internal flush hoses. This is an irreversible step which replicates the 2 vent holes in the OEM plug.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIs the Flush-M watertight?\u003c\/strong\u003e\u003cbr\u003eYes it is entirely. Flush-M comes ready to use out of the box and includes a new cowling wafer style O'ring to ensure a watertight seal. The Flush-M base and retaining tabs are the exact dimensions of the OEM plug in which it replaces, insuring a perfect watertight and firm seal.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCan I operate my engine on the Flush-M?\u003c\/b\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003eWe recommend customers follow their operators manual and use the Flush-M in the same manner as the manual indicates to use the OEM flush port. \u003cbr\u003eWe prefer customers to use the Flush-M with the engine off.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMy boat has multiple engines, is there sufficient space for the Flush-M and a hose between the cowlings?\u003c\/b\u003e\u003cbr\u003eYes there is, the Flush-M has conducted all R\u0026amp;D on a quad engine vessel for over a year without space being an issue. We recommend using a flexible elastic hose with a on\/ off valve at the quick connect for ease of use.\u003c\/p\u003e\n\u003cp\u003eAnother easy way to create more space is to flush the engines in sequence from the starboard most engine, trimming it up slightly creating clearance from the cowling of the next inboard engine that is at rest in the down position.\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eThe Flush-M can be permanently installed to your engine cowling by following these simple steps:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eRemove the original OEM plug from the engine cowling.\u003c\/li\u003e\n\u003cli\u003eUnscrew the OEM plug from the 3\/4\" female hose receptacle.\u003c\/li\u003e\n\u003cli\u003eSeparate the OEM plug from the lanyard by rotating it in a counterclockwise rotation until free.\u003c\/li\u003e\n\u003cli\u003eFit the Flush-M to the lanyard and the ¾\" female hose receptacle.\u003c\/li\u003e\n\u003cli\u003eInstall the Flush-M back into the engine cowling, securing it in place with a ¼ turn in a clockwise rotation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e*If required, use an 11\/16th wrench on the male quick connect collar for added leverage. Do not overtighten past ¼ turn.\u003c\/p\u003e\n\u003cp\u003eYour engine is now ready to be operated or flushed.\u003cbr\u003eTo flush, simply remove the flushing cap and attach a hose to the Flush-M utilizing the included quick connector. Refit the cap upon competition.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Flush-M","offers":[{"title":"Default Title","offer_id":48030693556515,"sku":"PV1013291","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/IMG_7418.jpg?v=1739377776"},{"product_id":"blackstone-laboratories-oil-analysis-kit-engine-or-transmission-oil-testing-4-pack","title":"Blackstone Laboratories Oil Analysis Kit - Engine or Transmission Oil Testing - 4-pack","description":"\u003cp\u003ePartsVu has partnered with Blackstone Labratories to give you the opportunity to know exactly how your engine, transmission, gear set, or generator is performing right now, through oil analysis. \u003c\/p\u003e\n\u003cp\u003eYou will receive everything you need to ship an oil sample to the professionals at Blackstone. The lab report will indicate if oil change intervals are on time, if there are contaminants like water, coolant, or salt present, and analyze a full spectrum of metals that might identify premature engine wear before it results in a costly or dangerous failure.\u003c\/p\u003e\n\u003cp\u003eThese oil sample kits can be used with inboard, outboard, gas, and diesel engines. The kits come complete with the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSample Bottle\u003c\/li\u003e\n\u003cli\u003ePlastic Bag \u0026amp; Absorbent Mat\u003c\/li\u003e\n\u003cli\u003eExternal Contaminent Bottle\u003c\/li\u003e\n\u003cli\u003ePrepaid Shipping Label to send the oil sample back to Blackstone Labs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSimply collect a small sample, fill out the sample card and drop the kit in the mailbox. Once Blackstone receives the oil sample, in a few days you will receive an email with the test results and a simplified breakdown of what the results mean. \u003c\/p\u003e\n\u003cp\u003eBlackstone will archive your sample and it can be used for future testing to further determine how your boat is performing over time.\u003c\/p\u003e\n\u003cp\u003eBelow is a sample report:\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.partsvu.com\/pub\/media\/wysiwyg\/BlackstoneLabSample1_2.jpg\"\u003e\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":48330423107875,"sku":"PVA00002","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/blackstone_4pack1_1.jpg?v=1714497760"},{"product_id":"mercury-outboard-winterizing-kit","title":"Mercury Outboard Winterizing Kit","description":"\u003ch2\u003eMercury Outboard Winterizing Kit\u003c\/h2\u003e\n\u003cp\u003ePreparing your Mercury outboard for winter storage doesn’t have to be stressful. The Mercury Outboard Winterizing Kit includes the exact OEM products designed to keep your engine protected during the off-season. To ensure your outboard starts strong next season, it’s essential to address several key components. This includes stabilizing your fuel, coating internal parts, and lubricating high-wear areas. The kit provides flexible size options for fuel stabilizer and grease, and you can also choose to add dielectric grease for enhanced electrical protection. For a full walkthrough of the process, check out our \u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/winterizing-outboard-motor-mercury-marine-essential-maintenance\" target=\"_blank\"\u003eMercury Winterizing Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Stabilizer – Keeps gas fresh\u003c\/strong\u003e – \u003ca href=\"https:\/\/partsvu.com\/products\/mercury-quickstor-fuel-stabilizer-12-oz-92-8m0047932\" target=\"_blank\"\u003eMercury Quickstor Fuel Stabilizer – 12 oz.\u003c\/a\u003e or \u003ca href=\"https:\/\/partsvu.com\/products\/mercury-quickstor-fuel-stabilizer-32-oz-92-8m0058692\" target=\"_blank\"\u003e32 oz.\u003c\/a\u003e. Prevents phase separation, fights varnish deposits, and helps your engine start easily after months of storage. Perfect for both small tanks and larger multi-tank setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFogging Oil – Protects internal parts\u003c\/strong\u003e – \u003ca href=\"https:\/\/partsvu.com\/products\/mercury-storage-seal-fogging-oil-12-oz-92-858081k03\" target=\"_blank\"\u003eMercury Storage Seal Fogging Oil – 12 oz.\u003c\/a\u003e. Coats cylinders and injectors with a corrosion-resistant film to block moisture intrusion and keep metal surfaces from pitting. Essential for long-term engine protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrease – Fights wear and corrosion\u003c\/strong\u003e – \u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-quicksilver-corrosion-inhibitors-grease\/products\/mercury-2-4-c-marine-grease-with-ptfe-8-oz-92-802859a1\" target=\"_blank\"\u003eMercury 2-4-C Marine Grease – 8 oz.\u003c\/a\u003e or \u003ca rel=\"noopener\" href=\"https:\/\/partsvu.com\/products\/mercury-greasex-14oz-92-8m0190472\" target=\"_blank\"\u003e14 oz. cartridge\u003c\/a\u003e. Specially formulated with PTFE to provide long-lasting lubrication for prop shafts, steering linkages, and fittings. Protects against saltwater intrusion and seizing.\u003c\/li\u003e\n\u003cli\u003eDielectric Grease (Optional) – Safeguards connections – \u003ca href=\"https:\/\/partsvu.com\/products\/permatex-dielectric-tune-up-grease-33-oz-81150\" target=\"_blank\"\u003ePermatex Dielectric Tune-Up Grease – .33 oz.\u003c\/a\u003e. A simple but effective way to keep plugs and terminals free of moisture and corrosion, reducing electrical issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-approved products\u003c\/strong\u003e – Every item in this kit is Mercury-tested and formulated for outboard use, ensuring the right chemistry for your engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexibility in size\u003c\/strong\u003e – Choose the bottle or cartridge size that best fits your outboard and fuel system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplifies maintenance\u003c\/strong\u003e – Rather than sourcing items separately, this kit bundles together everything Mercury recommends for proper winterization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine longevity\u003c\/strong\u003e – Using these products as directed reduces risk of costly repairs, extends engine life, and ensures smoother performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted by professionals\u003c\/strong\u003e – The same products marine techs rely on for seasonal prep, now packaged for DIY boaters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eStoring your boat for the off-season is about prevention. With the Mercury Outboard Winterizing Kit, you effectively protect every essential system — fuel, internal components, moving parts, and electrical systems. It's a wise investment that ensures your outboard remains reliable, efficient, and ready for spring launch.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this kit compatible with outboards that are not made by Mercury?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: While designed for Mercury, the stabilizer, fogging oil, and grease are high-quality marine-grade products that can be used across most brands. For best results, stick with OEM for your engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need the larger sizes of stabilizer or grease?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Not necessarily. The 32 oz. stabilizer and 14 oz. grease cartridge are best for larger tanks or frequent service work. When it comes to single-outboard setups, smaller sizes often do the trick! They pack a punch while keeping things sleek and efficient.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is winterization really necessary if I only store my boat for a couple of months?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes. Even short storage periods can lead to stale fuel, internal corrosion, and seized fittings. A proper winterization routine ensures your engine is protected regardless of downtime.\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"12 oz. \/ 12 oz. \/ 8 oz. Mercury Grease","offer_id":54304344834339,"sku":"C-PVMP-05442","price":43.97,"currency_code":"USD","in_stock":true},{"title":"12 oz. \/ 12 oz. \/ 8 oz. Mercury Grease + Dielectric Grease (Optional)","offer_id":54304344867107,"sku":"C-PVMP-05443","price":51.09,"currency_code":"USD","in_stock":true},{"title":"12 oz. \/ 12 oz. \/ 14 oz. Mercury Grease","offer_id":54304344899875,"sku":"C-PVMP-05444","price":46.97,"currency_code":"USD","in_stock":true},{"title":"12 oz. \/ 12 oz. \/ 14 oz. Mercury Grease + Dielectric Grease (Optional)","offer_id":54304344932643,"sku":"C-PVMP-05445","price":54.09,"currency_code":"USD","in_stock":true},{"title":"32 oz. \/ 12 oz. \/ 8 oz. Mercury Grease","offer_id":54304344965411,"sku":"C-PVMP-05446","price":55.56,"currency_code":"USD","in_stock":true},{"title":"32 oz. \/ 12 oz. \/ 8 oz. Mercury Grease + Dielectric Grease (Optional)","offer_id":54304344998179,"sku":"C-PVMP-05447","price":62.68,"currency_code":"USD","in_stock":true},{"title":"32 oz. \/ 12 oz. \/ 14 oz. Mercury Grease","offer_id":54304345030947,"sku":"C-PVMP-05448","price":58.56,"currency_code":"USD","in_stock":true},{"title":"32 oz. \/ 12 oz. \/ 14 oz. Mercury Grease + Dielectric Grease (Optional)","offer_id":54304345063715,"sku":"C-PVMP-05449","price":65.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/C-PVMP-05442.jpg?v=1756846488"},{"product_id":"mercury-marine-300-hour-service-kit-v8-4-6l-verado-seapro-10w-30-synthetic-blend-8m0149932","title":"Mercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026 SeaPro | 10W-30 Synthetic Blend | 8M0149932","description":"\u003ch2\u003eMercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026amp; SeaPro | 10W-30 Synthetic Blend | 8M0149932\u003c\/h2\u003e\n\n\u003cp\u003eThe Mercury V8 4.6L Verado \u0026amp; SeaPro 300 Hour Service Kit – 8M0149932 provides the essential maintenance components required to complete the recommended 300-hour service on Mercury 4.6L V8 outboards. Designed for both recreational and commercial applications, this kit helps simplify scheduled maintenance while supporting long-term engine reliability and performance.\u003c\/p\u003e\n\n\u003cp\u003eThis service kit includes Mercury 10W-30 Synthetic Blend marine engine oil, SAE 90 High Performance Gear Lube, and the critical maintenance components commonly replaced during the 300-hour interval. Performing routine service at the recommended intervals helps maintain proper lubrication, fuel delivery, cooling efficiency, and corrosion protection for demanding marine environments.\u003c\/p\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 x Mercury 300 Hour Maintenance Kit\u003c\/li\u003e\n  \u003cli\u003e1 x Gallon Mercury 10W-30 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e3 x Quarts Mercury 10W-30 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e1 x Quart Mercury SAE 90 High Performance Gear Lube\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eTypical Service Components Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOil Filter\u003c\/li\u003e\n  \u003cli\u003eFuel Filters\u003c\/li\u003e\n  \u003cli\u003eSpark Plugs\u003c\/li\u003e\n  \u003cli\u003eThermostat\u003c\/li\u003e\n  \u003cli\u003eAlternator Belt\u003c\/li\u003e\n  \u003cli\u003eWater Pump Repair Components\u003c\/li\u003e\n  \u003cli\u003eGearcase Drain Seals\u003c\/li\u003e\n  \u003cli\u003eCorrosion Protection Anodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupports Proper Engine Lubrication:\u003c\/strong\u003e Mercury 10W-30 Synthetic Blend oil helps reduce friction and wear under demanding marine operating conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects Internal Gearcase Components:\u003c\/strong\u003e Fresh SAE 90 High Performance Gear Lube helps shield gears and bearings from excessive wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains Fuel System Efficiency:\u003c\/strong\u003e Replacement fuel filters help provide clean fuel delivery and dependable throttle response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelps Maintain Cooling Performance:\u003c\/strong\u003e Water pump and thermostat service components support proper engine operating temperatures.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImproves Ignition Reliability:\u003c\/strong\u003e New spark plugs help maintain smooth starts, idle quality, and combustion efficiency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReduces Corrosion Concerns:\u003c\/strong\u003e New seals and anodes help protect critical engine components in freshwater and saltwater environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMercury V8 4.6L Verado Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury V8 4.6L SeaPro Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury 250HP–300HP V8 Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/strong\u003e\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":55071581995299,"sku":"PVM00193","price":687.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/image-coming-soon.webp?v=1769434592"},{"product_id":"mercury-marine-300-hour-service-kit-v8-4-6l-verado-seapro-25w-40-synthetic-blend-8m0149932","title":"Mercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026 SeaPro | 25W-40 Synthetic Blend | 8M0149932","description":"\u003ch2\u003eMercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026amp; SeaPro | 25W-40 Synthetic Blend | 8M0149932\u003c\/h2\u003e\n\n\u003cp\u003eThe Mercury V8 4.6L Verado \u0026amp; SeaPro 300 Hour Service Kit – 8M0149932 provides the essential maintenance components required to perform the recommended 300-hour service on Mercury 4.6L V8 outboards. Built for demanding offshore, recreational, and commercial applications, this kit helps simplify routine maintenance while supporting long-term engine performance and reliability.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing Mercury 25W-40 Synthetic Blend marine engine oil and SAE 90 High Performance Gear Lube, this service kit includes the critical components commonly replaced during the 300-hour maintenance interval. Routine service helps maintain proper lubrication, cooling efficiency, fuel system performance, and corrosion protection to keep your Mercury V8 operating at its best season after season.\u003c\/p\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 x Mercury 300 Hour Maintenance Kit\u003c\/li\u003e\n  \u003cli\u003e1 x Gallon Mercury 25W-40 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e3 x Quarts Mercury 25W-40 Synthetic Blend Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e1 x Quart Mercury SAE 90 High Performance Gear Lube\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eTypical Service Components Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOil Filter\u003c\/li\u003e\n  \u003cli\u003eFuel Filters\u003c\/li\u003e\n  \u003cli\u003eSpark Plugs\u003c\/li\u003e\n  \u003cli\u003eThermostat\u003c\/li\u003e\n  \u003cli\u003eAlternator Belt\u003c\/li\u003e\n  \u003cli\u003eWater Pump Repair Components\u003c\/li\u003e\n  \u003cli\u003eGearcase Drain Seals\u003c\/li\u003e\n  \u003cli\u003eCorrosion Protection Anodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains Proper Engine Lubrication:\u003c\/strong\u003e Mercury 25W-40 Synthetic Blend oil helps reduce friction and wear under demanding marine operating conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects Gearcase Components:\u003c\/strong\u003e Fresh SAE 90 High Performance Gear Lube helps shield gears and bearings from excessive wear and heat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupports Clean Fuel Delivery:\u003c\/strong\u003e Replacement fuel filters help maintain consistent fuel flow and throttle response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains Cooling System Efficiency:\u003c\/strong\u003e Water pump and thermostat service components help regulate proper engine temperature.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImproves Ignition Performance:\u003c\/strong\u003e New spark plugs help support reliable starting and smooth engine operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelps Reduce Corrosion:\u003c\/strong\u003e Replacement anodes and seals help protect critical components in harsh marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMercury V8 4.6L Verado Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury V8 4.6L SeaPro Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury 250HP–300HP V8 Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/strong\u003e\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":55071582028067,"sku":"PVM00194","price":687.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/image-coming-soon.webp?v=1769434592"},{"product_id":"mercury-marine-300-hour-service-kit-v8-4-6l-verado-seapro-25w-40-marine-oil-8m0149932","title":"Mercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026 SeaPro | 25W-40 Marine Oil | 8M0149932","description":"\u003ch2\u003eMercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026amp; SeaPro | 25W-40 Marine Oil | 8M0149932\u003c\/h2\u003e\n\n\u003cp\u003eThe Mercury V8 4.6L Verado \u0026amp; SeaPro 300 Hour Service Kit – 8M0149932 provides the essential maintenance components needed to complete the recommended 300-hour service interval on Mercury 4.6L V8 outboards. Designed for high-performance recreational and commercial applications, this kit helps keep your engine properly lubricated, protected, and operating reliably through extended hours on the water.\u003c\/p\u003e\n\n\u003cp\u003eBy combining the required engine oil, gear lube, filters, and key maintenance components into one convenient package, this service kit simplifies scheduled maintenance while helping maintain engine performance, fuel efficiency, cooling system function, and corrosion protection. Completing routine 300-hour service is one of the best ways to extend the life and reliability of your Mercury V8 outboard.\u003c\/p\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 x Mercury 300 Hour Maintenance Kit\u003c\/li\u003e\n  \u003cli\u003e1 x Gallon Mercury 25W-40 Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e3 x Quarts Mercury 25W-40 Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e1 x Quart Mercury SAE 90 High Performance Gear Lube\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eTypical Service Components Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOil Filter\u003c\/li\u003e\n  \u003cli\u003eFuel Filters\u003c\/li\u003e\n  \u003cli\u003eSpark Plugs\u003c\/li\u003e\n  \u003cli\u003eThermostat\u003c\/li\u003e\n  \u003cli\u003eAlternator Belt\u003c\/li\u003e\n  \u003cli\u003eWater Pump Repair Components\u003c\/li\u003e\n  \u003cli\u003eGearcase Drain Seals\u003c\/li\u003e\n  \u003cli\u003eCorrosion Protection Anodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains Proper Lubrication:\u003c\/strong\u003e Mercury 25W-40 oil helps protect internal engine components from friction and wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects the Gearcase:\u003c\/strong\u003e Fresh SAE 90 High Performance Gear Lube helps guard gears and bearings under heavy marine loads.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupports Reliable Fuel Delivery:\u003c\/strong\u003e Replacement fuel filters help maintain clean fuel flow and consistent engine performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains Cooling Efficiency:\u003c\/strong\u003e Thermostat and water pump service components help regulate proper engine operating temperature.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImproves Ignition Performance:\u003c\/strong\u003e New spark plugs help support clean starts, smooth idle, and reliable combustion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelps Reduce Corrosion:\u003c\/strong\u003e Replacement anodes and seals help protect vital engine components in harsh saltwater environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMercury V8 4.6L Verado Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury V8 4.6L SeaPro Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury 250HP–300HP V8 Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/strong\u003e\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":55071582060835,"sku":"PVM00192","price":666.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/image-coming-soon.webp?v=1769434592"},{"product_id":"mercury-marine-300-hour-service-kit-v8-4-6l-verado-seapro-10w-30-marine-oil-8m0149932","title":"Mercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026 SeaPro | 10W-30 Marine Oil | 8M0149932","description":"\u003ch2\u003eMercury Marine | 300 Hour Service Kit | V8 4.6L Verado \u0026amp; SeaPro | 10W-30 Marine Oil | 8M0149932\u003c\/h2\u003e\n\n\u003cp\u003eThe Mercury V8 4.6L Verado \u0026amp; SeaPro 300 Hour Service Kit – 8M0149932 includes the essential maintenance components needed to complete the recommended 300-hour service on Mercury 4.6L V8 Verado and SeaPro outboards. Built for high-output offshore and heavy-use applications, this kit helps simplify scheduled maintenance by packaging key service items into one convenient solution.\u003c\/p\u003e\n\n\u003cp\u003eRoutine 300-hour maintenance helps support proper lubrication, clean fuel delivery, cooling system efficiency, and long-term engine reliability. Replacing worn service components at the recommended interval helps protect internal engine parts, reduce corrosion concerns, and keep your Mercury V8 outboard ready for dependable time on the water.\u003c\/p\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eWhat’s Included in This Kit\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 x Mercury 300 Hour Maintenance Kit\u003c\/li\u003e\n  \u003cli\u003e1 x Gallon Mercury 10W-30 Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e3 x Quarts Mercury 10W-30 Marine Engine Oil\u003c\/li\u003e\n  \u003cli\u003e1 x Quart Mercury SAE 90 High Performance Gear Lube\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eTypical Service Components Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eOil Filter\u003c\/li\u003e\n  \u003cli\u003eFuel Filters\u003c\/li\u003e\n  \u003cli\u003eSpark Plugs\u003c\/li\u003e\n  \u003cli\u003eThermostat\u003c\/li\u003e\n  \u003cli\u003eAlternator Belt\u003c\/li\u003e\n  \u003cli\u003eWater Pump Service Components\u003c\/li\u003e\n  \u003cli\u003eGearcase Drain Seals\u003c\/li\u003e\n  \u003cli\u003eAnodes and Corrosion Protection Components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eBenefits of the 300 Hour Service\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintains Engine Lubrication:\u003c\/strong\u003e Fresh Mercury marine engine oil helps reduce friction and protect internal engine components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtects the Gearcase:\u003c\/strong\u003e Mercury High Performance Gear Lube helps guard gears and bearings from wear under heavy marine load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupports Fuel System Performance:\u003c\/strong\u003e Replacement fuel filters help maintain clean fuel flow and reliable throttle response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImproves Cooling System Reliability:\u003c\/strong\u003e Water pump and thermostat service components help maintain proper engine operating temperature.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRestores Ignition Performance:\u003c\/strong\u003e Fresh spark plugs support clean starts, smooth idle, and consistent combustion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelps Prevent Corrosion:\u003c\/strong\u003e Replacement anodes and seals help protect key components in harsh marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 24px 0;\"\u003e\n\n\u003ch3\u003eEngine Compatibility\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMercury V8 4.6L Verado Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury V8 4.6L SeaPro Outboards\u003c\/li\u003e\n  \u003cli\u003eMercury 250HP–300HP V8 Models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlways verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.\u003c\/strong\u003e\u003c\/p\u003e","brand":"PartsVu","offers":[{"title":"Default Title","offer_id":55071582093603,"sku":"PVM00191","price":666.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/image-coming-soon.webp?v=1769434592"}],"url":"https:\/\/partsvu.com\/en-au\/collections\/mercury-175-200-225-250-300-v6-3-4l-v8-4-6l-300-hour-kits.oembed","provider":"PartsVu","version":"1.0","type":"link"}