{"product_id":"8m0113483-service-kit-for-mercury-40hp-50hp-60hp-jlm-marine","title":"8M0113483 Service Kit for Mercury 40HP 50HP 60HP | JLM Marine","description":"\u003ch2\u003eService Kit for Mercury 40HP 50HP 60HP – OEM 8M0113483\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive service kit is designed for Mercury \u003cstrong\u003e40 HP, 50 HP, and 60 HP EFI\u003c\/strong\u003e outboard engines with \u003cstrong\u003estandard gear cases only\u003c\/strong\u003e. It consolidates all essential maintenance components—impeller, thermostats, filters, gaskets, and seals—into one complete package, streamlining your annual service or seasonal overhaul.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDirect Replacement for:\u003c\/strong\u003e Mercury OEM part number \u003cstrong\u003e8M0113483\u003c\/strong\u003e. This aftermarket kit meets OEM specifications and is manufactured to deliver reliable performance at a competitive price point.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes \u003cstrong\u003e18 different components\u003c\/strong\u003e covering water pump, fuel system, oil filtration, and lower unit service\u003c\/li\u003e\n  \u003cli\u003eFits Mercury EFI models: 40\/50\/60 HP with standard gear cases\u003c\/li\u003e\n  \u003cli\u003eComplete service solution for routine maintenance intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003cth\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury (OEM)\u003c\/td\u003e\n      \u003ctd\u003e8M0113483\u003c\/td\u003e\n      \u003ctd\u003eComplete service kit\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" target=\"_blank\" rel=\"nofollow noopener\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" target=\"_blank\" rel=\"nofollow noopener\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eBrand\u003c\/th\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eRated HP\u003c\/th\u003e\n      \u003cth\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eEFI (Standard Gear Case)\u003c\/td\u003e\n      \u003ctd\u003e40 HP\u003c\/td\u003e\n      \u003ctd\u003eEFI models only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eEFI (Standard Gear Case)\u003c\/td\u003e\n      \u003ctd\u003e50 HP\u003c\/td\u003e\n      \u003ctd\u003eEFI models only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury\u003c\/td\u003e\n      \u003ctd\u003eEFI (Standard Gear Case)\u003c\/td\u003e\n      \u003ctd\u003e60 HP\u003c\/td\u003e\n      \u003ctd\u003eEFI models only\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e8M0113483\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eFitment\u003c\/td\u003e\n      \u003ctd\u003eMercury 40\/50\/60 HP EFI (Standard Gear Cases Only)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eComplete Annual Service Kit\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eComponents Included\u003c\/td\u003e\n      \u003ctd\u003e18 parts (impeller, thermostat, filters, gaskets, seals, gear oil pump)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eThis service kit includes \u003cstrong\u003e18 individual components\u003c\/strong\u003e to cover water pump, fuel, oil, and lower unit service:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e47-19453T\u003c\/strong\u003e Impeller × 1\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e19700A2\u003c\/strong\u003e Plate × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e893857\u003c\/strong\u003e Water Tube × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-858234\u003c\/strong\u003e Gasket × 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e28-19699\u003c\/strong\u003e Key × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e27-822189\u003c\/strong\u003e Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e27-19701\u003c\/strong\u003e Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2642\u003c\/strong\u003e Gasket × 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e25-62702\u003c\/strong\u003e O-ring × 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e191833\u003c\/strong\u003e Gasket × 3\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e8M0117413\u003c\/strong\u003e Thermostat × 1\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e27-8M0177107\u003c\/strong\u003e Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e35-879884T\u003c\/strong\u003e Fuel Filter × 1\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e35-8M0153652\u003c\/strong\u003e Fuel Filter × 1\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e35-8M0162829\u003c\/strong\u003e Oil Filter × 1\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8M007119\u003c\/strong\u003e Drain Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e830749\u003c\/strong\u003e Drain Gasket × 3\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e24OP149\u003c\/strong\u003e Gear Oil Pump × 1\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Disconnect the fuel line and flush the engine with fresh water. Gather all necessary tools including screwdrivers, wrenches, and a drain pan.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove Lower Unit:\u003c\/strong\u003e Shift the engine into forward gear and remove the lower unit mounting bolts. Carefully slide the lower unit away from the engine, taking care not to damage the water tube or shift rod.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Pump Disassembly:\u003c\/strong\u003e Remove the water pump housing cover and extract the old impeller, plate, and gaskets. Inspect the water tube for corrosion or damage and replace if necessary (included in kit).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall New Impeller:\u003c\/strong\u003e Lubricate the new impeller (47-19453T) with glycerin or soapy water. Insert it into the housing with blades oriented in the correct direction (check service manual for your model).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReassemble Water Pump:\u003c\/strong\u003e Install the new plate (19700A2), gaskets (12-858234, 27-822189, 27-19701), key (28-19699), and O-rings (25-62702) in the proper sequence. Torque all fasteners to manufacturer specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Thermostat:\u003c\/strong\u003e Locate the thermostat housing on the cylinder head. Remove the old thermostat (8M0117413) and gasket (27-8M0177107), clean the mating surfaces, and install the new components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChange Oil Filter:\u003c\/strong\u003e Remove the old oil filter (35-8M0162829) using a filter wrench. Lubricate the gasket on the new filter with clean engine oil and hand-tighten into place.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Fuel Filters:\u003c\/strong\u003e Install the two new fuel filters (35-879884T and 35-8M0153652) per your engine's fuel system layout. Ensure proper orientation and secure all clamps tightly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLower Unit Service:\u003c\/strong\u003e Drain old gear oil and replace drain gaskets (8M007119, 830749, and additional gaskets 2642, 191833). Refill with fresh gear oil using the included pump (24OP149) until oil appears at the upper vent hole.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReinstall Lower Unit:\u003c\/strong\u003e Align the water tube and shift rod, then slide the lower unit back onto the engine. Install and torque all mounting bolts to specification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal Checks:\u003c\/strong\u003e Reconnect the fuel line and verify all gaskets and seals are properly seated. Refill engine oil to the correct level and check for leaks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTest Run:\u003c\/strong\u003e Start the engine in a test tank or on-water and verify proper water flow from the telltale. Check for fuel or oil leaks and confirm smooth operation across all RPM ranges.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I confirm this kit fits my Mercury engine?\u003c\/strong\u003e\u003cbr\u003e\nThis kit is designed exclusively for Mercury \u003cstrong\u003e40, 50, and 60 HP EFI\u003c\/strong\u003e outboards with \u003cstrong\u003estandard gear cases\u003c\/strong\u003e. Verify your engine's HP rating, fuel system type (must be EFI), and gear case configuration before ordering. If your model uses a different gear case (e.g., high-performance or counter-rotation), this kit will not fit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow often should I perform this service?\u003c\/strong\u003e\u003cbr\u003e\nMercury recommends a complete service every \u003cstrong\u003e100 hours of operation or annually\u003c\/strong\u003e, whichever comes first. If you operate in sandy, silty, or saltwater conditions, inspect the impeller and water pump components every 50 hours and replace as needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat are the signs that my impeller or thermostat needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nA failing impeller typically causes weak or no water flow from the telltale, overheating alarms, or steam from the engine. A faulty thermostat may result in the engine running too cold (poor fuel economy, sluggish performance) or overheating. Replace both components during every annual service to prevent failures.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use this kit if I have a non-EFI (carbureted) Mercury in the same HP range?\u003c\/strong\u003e\u003cbr\u003e\nNo. This kit is specifically engineered for \u003cstrong\u003eEFI (Electronic Fuel Injection)\u003c\/strong\u003e models with standard gear cases. Carbureted models and EFI engines with different gear case configurations require different part numbers. Always cross-reference your engine's serial number with Mercury's parts catalog.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy are two fuel filters included?\u003c\/strong\u003e\u003cbr\u003e\nMercury EFI systems in this HP range typically use a dual-stage fuel filtration setup: a low-pressure filter (35-879884T) and a high-pressure filter (35-8M0153652). Both filters must be replaced simultaneously to maintain fuel system integrity and prevent injector clogging.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat's the difference between OEM and aftermarket service kits?\u003c\/strong\u003e\u003cbr\u003e\nThis listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nWe offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nThis product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n  \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":52418283831609,"sku":"23KM777-4N","price":68.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/kit-23KM777-4N_e855e885-850e-4194-a6d9-3cc6b20deeea.png?v=1776686812","url":"https:\/\/jlmmarine.com\/ru\/products\/8m0113483-service-kit-for-mercury-40hp-50hp-60hp-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}