{"product_id":"3ky-01030-0-maintenance-kit-for-tohatsu-mfs40-mfs50a-jlm-marine","title":"3KY-01030-0 Maintenance Kit for Tohatsu MFS40 MFS50A | JLM Marine","description":"\u003ch2\u003e3KY-01030-0 Maintenance Kit for Tohatsu MFS40 MFS50A | JLM Marine\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive maintenance kit is specifically designed for \u003cstrong\u003eTohatsu MFS40 and MFS50A\u003c\/strong\u003e outboard engines. It provides all essential service components in one convenient package to ensure your engine runs smoothly and reliably season after season.\u003c\/p\u003e\n\n\u003cp\u003eThis kit directly replaces OEM part number \u003cstrong\u003e3KY-01030-0\u003c\/strong\u003e, delivering a complete solution for routine maintenance without the need to source individual components separately.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes water pump repair kit, thermostat, fuel filter, gaskets, and gear oil pump\u003c\/li\u003e\n  \u003cli\u003eDesigned for MFS40\/50A models\u003c\/li\u003e\n  \u003cli\u003eAll components meet OEM specifications for reliable performance\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\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\u003eTohatsu\u003c\/td\u003e\n      \u003ctd\u003e3KY-01030-0\u003c\/td\u003e\n      \u003ctd\u003eOEM Maintenance Kit\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\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\u003eNotes\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTohatsu\u003c\/td\u003e\n      \u003ctd\u003eMFS40\u003c\/td\u003e\n      \u003ctd\u003eFour-stroke outboard\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTohatsu\u003c\/td\u003e\n      \u003ctd\u003eMFS50A\u003c\/td\u003e\n      \u003ctd\u003eFour-stroke outboard\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\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  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOEM Part Number\u003c\/td\u003e\n      \u003ctd\u003e3KY-01030-0\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplication\u003c\/td\u003e\n      \u003ctd\u003eTohatsu MFS40\/50A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eComprehensive Maintenance Kit\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 maintenance kit includes the following components:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3T5-87322-3\u003c\/strong\u003e Water Pump Repair Kit × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3H6-01030-0\u003c\/strong\u003e Thermostat × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e346-02230-0\u003c\/strong\u003e Fuel Filter × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3R3-07406-0\u003c\/strong\u003e Gasket × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e332-60006\u003c\/strong\u003e Drain Gasket × 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24OP149\u003c\/strong\u003e Gear Oil Pump × 1\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 Ensure the engine is off and cooled down completely. Gather necessary tools including wrenches, screwdrivers, and a drain pan.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrain fluids:\u003c\/strong\u003e Use the included gear oil pump to drain the lower unit gear oil. Collect old fuel and coolant as needed per your service manual.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove water pump housing:\u003c\/strong\u003e Unbolt the lower unit and carefully separate the water pump housing. Remove the old impeller and components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall water pump repair kit:\u003c\/strong\u003e Clean all mating surfaces thoroughly. Install new impeller, gaskets, and seals from the water pump repair kit per factory 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 and install the new one with fresh gasket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace fuel filter:\u003c\/strong\u003e Disconnect fuel lines and remove the old fuel filter. Install the new fuel filter ensuring proper flow direction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall gaskets:\u003c\/strong\u003e Replace all gaskets at their respective locations during reassembly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReassemble components:\u003c\/strong\u003e Reinstall the water pump housing and lower unit, torquing all fasteners to manufacturer specifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefill fluids:\u003c\/strong\u003e Use the gear oil pump to refill the lower unit with fresh gear oil until it flows from the upper vent hole. Replace coolant and fuel as needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem check:\u003c\/strong\u003e Reconnect all hoses and lines securely. Inspect for any leaks or loose connections before starting the engine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTest run:\u003c\/strong\u003e Start the engine and allow it to reach operating temperature. Check for proper water pump discharge and verify no leaks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal inspection:\u003c\/strong\u003e Recheck all fasteners and connections after the test run. Dispose of old fluids and parts properly according to local regulations.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this maintenance kit fits my Tohatsu engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify your engine model is MFS40 or MFS50A by checking the serial number plate on the mounting bracket. Cross-reference the OEM part number 3KY-01030-0 in your engine's service manual to ensure compatibility.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I perform this maintenance service?\u003c\/strong\u003e\u003cbr\u003e\nA: Tohatsu recommends annual maintenance or every 100 hours of operation, whichever comes first. In harsh conditions (saltwater, heavy use), more frequent service intervals may be necessary.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this kit myself or do I need a professional?\u003c\/strong\u003e\u003cbr\u003e\nA: If you have mechanical experience and the proper tools, you can install this kit following your engine's service manual. However, professional installation is recommended to ensure proper torque specifications and system integrity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that I need to replace these maintenance items?\u003c\/strong\u003e\u003cbr\u003e\nA: Common warning signs include overheating, weak water pump discharge, rough idling, fuel starvation, or visible gear oil leaks. Regular preventive maintenance prevents these issues from occurring.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Does this kit include the gear oil itself?\u003c\/strong\u003e\u003cbr\u003e\nA: No, this kit includes the gear oil pump for draining and refilling, but the gear oil itself must be purchased separately. Refer to your owner's manual for the correct oil type and capacity.\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":52418425028921,"sku":"25KT205","price":65.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/kit-25KT205.png?v=1776686942","url":"https:\/\/jlmmarine.com\/ru\/products\/3ky-01030-0-maintenance-kit-for-tohatsu-mfs40-mfs50a-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}