{"product_id":"mercury-15-20-hp-complete-300-hour-service-maintenance-kit-10w-30-synthetic-blend-8m0120838-s-n-0r235949-0r833819","title":"Mercury 15\/20 HP Complete 300 Hour Service Maintenance Kit 10W-30 Synthetic Blend - 8M0120838 - S\/N 0R235949 - 0R833819","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 | 15\/20 HP | 8M0120838\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMercury 300 Hour Service Kit – 8M0120838\u003c\/strong\u003e provides the essential maintenance components required to properly service Mercury \u003cstrong\u003e15 HP and 20 HP four-stroke outboards\u003c\/strong\u003e with serial numbers \u003cstrong\u003e0R235949 through 0R833819\u003c\/strong\u003e. This complete kit simplifies scheduled maintenance by bundling the required oils, filters, cooling system components, ignition parts, and seals needed for the 300-hour service interval.\u003c\/p\u003e\n\n\u003cp\u003eRegular maintenance ensures reliable engine performance, improved fuel efficiency, and long-term durability. By replacing worn service components such as spark plugs, filters, thermostat, and the water pump impeller, this kit helps keep your Mercury outboard running smoothly and operating at the proper temperature while protecting critical internal engine and gearcase components.\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\u003e2 x\u003c\/strong\u003e Quarts 10W-30 Synthetic Blend Engine Oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Quart 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\u003e1 x\u003c\/strong\u003e Oil Drain Seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 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 Pump Impeller Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 x\u003c\/strong\u003e Anode\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin:24px 0;\"\u003e\n\n\u003ch3\u003eWhy Perform the 300 Hour Service?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain lubrication performance\u003c\/strong\u003e with fresh synthetic blend engine oil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect the lower unit\u003c\/strong\u003e with new gear lube and drain seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnsure proper cooling\u003c\/strong\u003e with a new thermostat and water pump impeller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImprove engine efficiency\u003c\/strong\u003e with fresh spark plugs and clean filtration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevent corrosion\u003c\/strong\u003e by replacing the sacrificial anode.\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 15 HP Four-Stroke Outboards\u003c\/li\u003e\n\u003cli\u003eMercury 20 HP Four-Stroke Outboards\u003c\/li\u003e\n\u003cli\u003eSerial Numbers \u003cstrong\u003e0R235949 – 0R833819\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eAlways confirm your Mercury outboard serial number before ordering to ensure proper fitment.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":47125896200483,"sku":"PVM00095","price":345.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0120838_1030.jpg?v=1701377083","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-15-20-hp-complete-300-hour-service-maintenance-kit-10w-30-synthetic-blend-8m0120838-s-n-0r235949-0r833819","provider":"PartsVu","version":"1.0","type":"link"}