{"title":"Mercury Mercruiser Internal Engine","description":"\u003ch2\u003e\u003cstrong\u003eMercury MerCruiser Internal Engine Parts - Resources and Information\u003c\/strong\u003e\u003c\/h2\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eYour MerCruiser internal engine components are some of the most important parts of your engine - and keeping them in working order is absolutely essential for the best performance, year-after-year, reliability, and the safest experience out on the water. \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003ePartsVu offers Mercury MerCruiser boats all of the internal engine parts MerCruiser boaters need to perform their own repairs. We carry model-specific parts, like a Head Gasket Set for a 3.0 MerCruiser, as well as \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercruiser-gasket-sets-for-engine-overhaul\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMerCruiser Gasket Sets for Engine Overhaul \u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003eand \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercruiser-oil-pumps\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eOil Pumps\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e when you want to save thousands restoring your internal engine.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eBest of all, we offer fast shipping and the lowest prices for everything else you need to keep your boat in tip-top shape, including \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-outboard-gear-lube-kits\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eGear Lube Kits\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e, \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-mercruiser-drive-system\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Drive System Parts\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e, and \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-mercruiser-100-300-hour-service-kits\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e100 \u0026amp; 300 Hour Service Kits\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e. \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eTo help you find the right internal engine parts plus in-depth articles for reference, check out some of our helpful MerCruiser resources:\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/mercury-mercruiser-inboard-engine-care-maintenance\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMerCruiser Inboard Maintenance\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercruiser-parts\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMerCruiser Maintenance Parts Library\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/mercury-outboard-and-mercruiser-resources-collection\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Outboard and Mercruiser Resources Collection\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003ch2\u003e\u003cstrong\u003eMercury MerCruiser Internal Engine FAQ\u003c\/strong\u003e\u003c\/h2\u003e \u003ch3\u003e\u003cstrong\u003eHow do I perform internal engine maintenance for my Mercury MerCruiser motor?\u003c\/strong\u003e\u003c\/h3\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eYour MerCruiser engine’s internal engine components require regular servicing during the entire lifespan of owning your MerCruiser motor. There are regular maintenance intervals that must be met for Mercury engines, including 20-hour service, every 100 hours, 300 hours, and so forth. \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe following is the Mercury maintenance schedule for \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/pages\/mercury-maintenance-schedule?amp%3Bitm_campaign=mercury-summer-boat-resources\u0026amp;amp%3Bitm_medium=slider\u0026amp;itm_source=partsvu\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e100 hour and 300 hour maintenance intervals\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e (which includes Mercury’s MerCruiser line of outboard, inboards, and sterndrive engines):\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/partsvu.com\/pages\/mercury-maintenance-schedule?amp%3Bitm_campaign=mercury-summer-boat-resources\u0026amp;amp%3Bitm_medium=slider\u0026amp;itm_source=partsvu\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e100 Hours\/1 Year\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eItem\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAction(s)\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eLanyard stop switch\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eTransom tightness\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSteering system\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSteering link rod fasteners\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003ePropeller blades\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eEngine fuel filter\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eEngine timing setup\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eCorrosion control anode\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eValve clearance\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003ePower trim fluid\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eControl cable adjustments\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eTiming belt\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eBolts, nuts, \u0026amp; other fasteners\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eFuel system \u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eInspect for deterioration or leaks\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eThermostat\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eInspect for corrosion or broken spring\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eGrease points\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eLubricate\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSplines on the drive shaft\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eLubricate\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSpark plugs\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\/replace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eEngine oil\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eOil filter\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eGear case lubricant\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/partsvu.com\/pages\/mercury-maintenance-schedule?amp%3Bitm_campaign=mercury-summer-boat-resources\u0026amp;amp%3Bitm_medium=slider\u0026amp;itm_source=partsvu\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e300 Hours\/3 Years\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003ctable\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eItem\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAction(s)\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eWater Pump Impeller\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eLanyard stop switch\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eTransom tightness\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSteering system\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSteering link rod fasteners\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003ePropeller blades\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eEngine fuel filter\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eEngine timing setup\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eCorrosion control anode\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eValve clearance\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003ePower trim fluid\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eBattery\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eControl cable adjustments\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eTiming belt\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eBolts, nuts, \u0026amp; other fasteners\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eFuel system \u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eInspect for deterioration or leaks\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eThermostat\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eInspect for corrosion or broken spring\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eGrease points\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eLubricate\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSplines on the drive shaft\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eLubricate\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eSpark plugs\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eCheck\/replace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eEngine oil\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eOil filter\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cstrong\u003eGear case lubricant\u003c\/strong\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eReplace\u003c\/span\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch3\u003e\u003cstrong\u003eWhy should I use Mercury fuel stabilizer for my internal engine components?\u003c\/strong\u003e\u003c\/h3\u003e \u003cp\u003e\u003ca href=\"https:\/\/partsvu.com\/products\/mercury-quickstor-fuel-stabilizer-32-oz-92-8m0058692\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Quikstor\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e treats and stabilizes fuel at every fill-up which is necessary because just about all gasoline today contains up to 10% ethanol. Left untreated, ethanol-blended fuel can break down over time through a process called “phase separation”, leading to gum and varnish build-up. This buildup then leads to blocked fuel flow (in carburetors and fuel injectors especially) and internal engine corrosion due to the moisture content of the water. \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eAs a preventive measure, fuel stabilizers keep fuel fresh between fill-ups for up to three months. This is also why boaters should use \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/products\/mercury-quickstor-fuel-stabilizer-32-oz-92-8m0058692\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Quikstor\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e if their boat is stored during \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/how-to-winterize-a-mercruiser-sterndrive\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ewinterization\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e (see next section below) or is used infrequently, which can lead to issues with your engine running. \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eBefore storage, simply add a bottle of Quickstor to your fuel tank, then run the engine so that the treated fuel circulates throughout the engine and fuel lines. This extended fuel stabilizer prevents gum and varnish from forming in the engine, fuel lines, and tank and stabilizes fuel for up to one year, thereby successfully averting any fuel-related problems. One ounce of Quickstor treats five gallons of fuel, so a 12-ounce bottle treats 60 gallons.\u003c\/span\u003e\u003c\/p\u003e \u003ch3\u003e\u003cstrong\u003eIs winterizing my MerCruiser important?\u003c\/strong\u003e\u003c\/h3\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eYes, winterizing your engine is absolutely essential when it comes to preserving your Mercury MerCruiser internal engine components. Properly \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/blogs\/boating-resources\/how-to-winterize-a-mercruiser-sterndrive\"\u003e\u003cspan style=\"font-weight: 400;\"\u003ewinterizing your MerCruiser\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e engine should be mandatory for all experienced boaters. Winterizing helps avoid engine damage and will facilitate a smoother start to the beginning of next season - after all, no one wants to wait to get back on the water!\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThere are several important steps you should take when storing your MerCruiser lower unit to ensure that it’s properly winterized.\u003c\/span\u003e\u003c\/p\u003e \u003col\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eFlush Your Engine - Thoroughly flush your MerCruiser engine to remove any salt buildup if you are a saltwater boater, or accumulated mud and grime if you are a freshwater boater. Failure to remove this debris from your MerCruiser lower unit leads to corrosion in the engine. And if you’re a saltwater boater, leftover salt crystals in the lower unit can act like sandpaper to your internal engine components.\u003c\/span\u003e\u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003cspan style=\"font-weight: 400;\"\u003eStabilize Your Fuel System - Fuel starts to go bad within 30 days of sitting in your \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-mercruiser-fuel-system\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMerCruiser fuel system\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e. It is vital to use a fuel stabilizer like \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/products\/mercury-quickstor-fuel-stabilizer-32-oz-92-8m0058692\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Quickstor Fuel Stabilizer\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e when your boat will be sitting unused for more than two or three months. Adding the amount of fuel stabilizer directed on the product’s packaging to your fuel—for instance, 1 ounce of \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/products\/mercury-quickstor-fuel-stabilizer-32-oz-92-8m0058692\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Quickstor Fuel Stabilizer\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e for every 5 gallons of marine fuel ensures proper winterization for more than 3 months. \u003c\/span\u003e \u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003cspan style=\"font-weight: 400;\"\u003eFog Your MerCruiser Engine - \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/products\/mercury-storage-seal-fogging-oil-12-oz-92-858081k03\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Storage Seal Fogging Oil\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e is a wax-based oil that coats the engine to prevent corrosion.\u003c\/span\u003e \u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003cspan style=\"font-weight: 400;\"\u003eChange Out the Lower Unit Oil - It’s recommended by marine mechanics to change your \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/?q=mercruiser%20gear%20lube\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMerCruiser gear lube\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e before storage to make sure that there is no water in the lower unit’s oil. Any water in the oil could freeze, expand, and crack your lower unit. Additionally, the old oil is more likely to gum up oil passages and corrode components due to changes in its chemical composition through regular use. Last, consult your \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/mercury-outboard-service-manuals-and-owners-manuals\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMerCruiser owners manual\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e for which oil is appropriate for your engine.\u003c\/span\u003e \u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003cspan style=\"font-weight: 400;\"\u003eDisconnect Your Battery - Disconnect your battery and spray \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/search?q=battery+terminal+protector+12+oz\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eCRC Marine Battery Terminal Cleaner\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e on your battery terminals.\u003c\/span\u003e \u003c\/li\u003e \u003c\/ol\u003e \u003ch3\u003e\u003cstrong\u003eShould I use Mercury fuel additives for my MerCruiser’s internal engine components?\u003c\/strong\u003e\u003c\/h3\u003e \u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eYes, Mercury offers a solid line of Mercury fuel additives that preserve the lifespan of your internal engine components. Here’s what we recommend:\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003ca href=\"https:\/\/partsvu.com\/?q=Quickare\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eQuickare\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e treats and stabilizes fuel at every fill-up which is necessary because just about all gasoline today contains up to 10% ethanol. Left untreated, ethanol-blended fuel can break down leading to gum and varnish build-up which causes internal engine corrosion. Fuel additives such as a bottle of Quickare keep fuel fresh between fill-ups for up to three months.\u003c\/span\u003e \u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003cspan style=\"font-weight: 400;\"\u003eTo clean your engine and fuel system of carbon deposits, add \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/?q=Quickleen\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Quickleen\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e to your fuel tank. Simply add a bottle of Quickleen to your outboard fuel tank once per year to remove carbon deposits, prevent engine knocking, piston seizing, and extend spark plug life. Aggressive fuel system cleaner within Quickleen works to quickly and thoroughly remove carbon deposits from carburetors and fuel injectors, intake valves, spark plugs, piston crowns, and cylinder heads.\u003c\/span\u003e \u003c\/li\u003e \u003cli style=\"font-weight: 400;\" aria-level=\"1\"\u003e \u003cspan style=\"font-weight: 400;\"\u003eIf your boat will be sitting for an extended period of time, you need to add a fuel stabilizer like \u003c\/span\u003e\u003ca href=\"https:\/\/partsvu.com\/?q=Quickstor\"\u003e\u003cspan style=\"font-weight: 400;\"\u003eMercury Marine Quikstor\u003c\/span\u003e\u003c\/a\u003e\u003cspan style=\"font-weight: 400;\"\u003e to prevent both regular and ethanol-blended fuels from breaking down through phase separation, oxidizing, and causing fuel system corrosion, and eventually affecting the engine’s performance. Before storage add a bottle of Quickstor to your fuel tank, then run the engine so that the treated fuel circulates throughout the engine and fuel lines. This extended fuel stabilizer prevents gum and varnish from forming in the engine, fuel lines, and tank and stabilizes fuel for up to one year, thereby successfully averting any fuel-related problems. One ounce of Quickstor treats five gallons of fuel, so a 12-ounce bottle treats 60 gallons.\u003c\/span\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003cp style=\"font-weight: 400;\"\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003ePartsVu offers all of the Mercury Mercruiser internal engine parts you need to replace your boat's internal engine, keeping your boat in tip-top shape for optimal performance on the water. Our extensive selection of Mercury Mercruiser engine parts includes MerCruiser Head Gasket Sets, MerCruiser Oil Pumps, MerCruiser Oil Pump Pick-Up Tubes, and much more.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e","products":[{"product_id":"mercury-mercruiser-oil-pump-fits-mcm-420-425-465-500-525sc-600sc-827589t1","title":"Mercury Mercruiser - Oil Pump - Fits MCM 420, 425, 465, 500, 525SC \u0026 600SC - 827589T1","description":"\u003cp\u003ew\/ Pickup Tube\u003c\/p\u003e \u003cp\u003eFits:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMCM 420\u003c\/li\u003e \u003cli\u003e425\u003c\/li\u003e \u003cli\u003e465\u003c\/li\u003e \u003cli\u003e500\u003c\/li\u003e \u003cli\u003e525SC\u003c\/li\u003e \u003cli\u003e600SC\u003c\/li\u003e \u003c\/ul\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932430061859,"sku":"827589T1","price":1019.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/827589t1.jpg?v=1698779559"},{"product_id":"mercury-mercruiser-oil-pump-fits-mcm-mie-325-330-350-350-370-390-400-440-454-mag-7-4l-808693a1","title":"Mercury Mercruiser - Oil Pump - Fits MCM\/MIE 325, 330, 350, 350, 370, 390, 400, 440, 454 Mag \u0026 7.4L - 808693A1","description":"\u003cp\u003ew\/o Pickup Tube\u003c\/p\u003e \u003cp\u003eFits:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMCM\/MIE 325\u003c\/li\u003e \u003cli\u003e330\u003c\/li\u003e \u003cli\u003e350\u003c\/li\u003e \u003cli\u003e350\u003c\/li\u003e \u003cli\u003e370\u003c\/li\u003e \u003cli\u003e390\u003c\/li\u003e \u003cli\u003e400\u003c\/li\u003e \u003cli\u003e440\u003c\/li\u003e \u003cli\u003e454 Mag\u003c\/li\u003e \u003cli\u003e7.4L\u003c\/li\u003e \u003c\/ul\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932430356771,"sku":"808693A1","price":107.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/808693a1.jpg?v=1698779560"},{"product_id":"mercury-mercruiser-overhaul-gasket-set-fits-mcm-mie-200-230-260-350-mag-5-0l-lx-5-7l-27-75611a88","title":"Mercury Mercruiser - Overhaul Gasket Set - Fits MCM\/MIE 200, 230, 260, 350 Mag, 5.0L\/LX \u0026 5.7L - 27-75611A88","description":"\u003cp\u003eFits MCM\/MIE 200, 230, 260, 350 Mag, 5.0L\/LX \u0026amp; 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