{"product_id":"mercury-8-9-9-hp-complete-300-hour-service-maintenance-kit-25w-40-command-thrust-bigfoot-only-8m0120867-s-n-0r042475-above","title":"Mercury 8\/9.9 HP Complete 300 Hour Service Maintenance Kit 25W-40 Command Thrust\/Bigfoot Only 8M0120867 - S\/N 0R042475 \u0026 Above","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 \u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\" style=\"color: rgb(43, 0, 255);\"\u003eoil analysis kits\u003c\/a\u003e\u003c\/span\u003e. Results are typically received in a few days via email. \u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca href=\"https:\/\/partsvu.com\/collections\/blackstone-laboratories\" style=\"color: rgb(43, 0, 255);\"\u003eShop now\u003c\/a\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003ch2\u003eMercury | 300 Hour Service Kit | 8M0120867\u003c\/h2\u003e\n\u003cp\u003eStay on schedule with a complete 300 hour service kit for Mercury 8 HP and 9.9 HP carbureted (209cc) four-stroke outboards equipped with \u003cstrong\u003eCommand Thrust\/Bigfoot gearcases\u003c\/strong\u003e. Built around \u003cstrong\u003e25W-40 four-stroke engine oil\u003c\/strong\u003e, this bundle covers the most common milestone service items—engine lubrication, gearcase service parts, fuel filtration, cooling components, ignition parts, and corrosion protection—so you can keep your small outboard performing reliably season after season.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSerial number range:\u003c\/strong\u003e 0R042475 \u0026amp; Above\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 25W-40 Four-Stroke Engine Oil (Quart)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Gear Lube (Quart)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Fuel Filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Oil Drain Seal\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\n\u003cstrong\u003e1 x\u003c\/strong\u003e Thermostat Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x\u003c\/strong\u003e Spark Plugs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Water Impeller Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Anode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eWhy This Kit Makes Service Easier\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMilestone coverage:\u003c\/strong\u003e Combines fluids, seals, filters, cooling parts, and ignition components in one kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling system refresh:\u003c\/strong\u003e Thermostat and impeller service helps maintain proper water flow and stable operating temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel-side protection:\u003c\/strong\u003e Replacing the fuel filter helps reduce debris and contamination reaching critical components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion defense:\u003c\/strong\u003e Includes an anode to help reduce galvanic corrosion in marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eService Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for Mercury 8\/9.9 HP models with Command Thrust\/Bigfoot gearcases.\u003c\/li\u003e\n\u003cli\u003eReplace drain seals during every service to help maintain a proper seal.\u003c\/li\u003e\n\u003cli\u003eDispose of used oil and gear lube according to local regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin: 24px 0;\"\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this kit fit standard gearcase models?\u003c\/strong\u003e\u003cbr\u003eNo. This kit is intended for \u003cstrong\u003eCommand Thrust\/Bigfoot gearcases only\u003c\/strong\u003e. Standard gearcase models require a different service kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are 2 gearcase drain seals included?\u003c\/strong\u003e\u003cbr\u003eMany gearcases use sealing washers at both the drain and vent screws, so replacing both helps ensure a proper seal after service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm compatibility?\u003c\/strong\u003e\u003cbr\u003eVerify your engine serial number is \u003cstrong\u003e0R042475 or higher\u003c\/strong\u003e and confirm your outboard is equipped with a Command Thrust\/Bigfoot gearcase before ordering.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47125896069411,"sku":"PVM00092","price":234.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0120867-2540.jpg?v=1701377082","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-8-9-9-hp-complete-300-hour-service-maintenance-kit-25w-40-command-thrust-bigfoot-only-8m0120867-s-n-0r042475-above","provider":"PartsVu","version":"1.0","type":"link"}