{"product_id":"3nv-87500-0-service-kit-for-tohatsu-mfs25c-mfs30c-mfs25d-mfs30d-jlm-marine","title":"3NV-87500-0 Service Kit for Tohatsu MFS25C MFS30C MFS25D MFS30D | JLM Marine","description":"\u003ch2\u003eService Kit for Tohatsu MFS25C, MFS30C, MFS25D, MFS30D Outboard Engines\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive service kit is engineered for \u003cstrong\u003eTohatsu MFS25C, MFS30C, MFS25D, and MFS30D\u003c\/strong\u003e outboard engines, delivering all the essential components needed for a complete routine maintenance overhaul. Whether you're performing seasonal servicing or addressing wear on critical cooling and filtration systems, this kit ensures your engine runs at peak performance.\u003c\/p\u003e\n\n\u003cp\u003eThis kit directly replaces OEM part number \u003cstrong\u003e3NV-87500-0\u003c\/strong\u003e, providing an aftermarket solution that meets OEM specifications. It includes water pump components, thermostats, filters, gaskets, and hardware—everything required for a thorough service in one convenient package.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIncludes complete water pump rebuild components (impeller, gaskets, insert cup, plate, key, and hardware)\u003c\/li\u003e\n  \u003cli\u003eFeatures dual thermostat assemblies with gaskets for comprehensive cooling system maintenance\u003c\/li\u003e\n  \u003cli\u003eContains fuel filter, oil filter, drain gaskets, and gear oil pump for full fluid system service\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    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTohatsu\u003c\/td\u003e\n      \u003ctd\u003e3NV-87500-0\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\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      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTohatsu\u003c\/td\u003e\n        \u003ctd\u003eMFS25\/30C\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eTohatsu\u003c\/td\u003e\n        \u003ctd\u003eMFS25\/30D\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  \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 Number\u003c\/td\u003e\n      \u003ctd\u003e3NV-87500-0\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCompatible Models\u003c\/td\u003e\n      \u003ctd\u003eTohatsu MFS25C, MFS30C, MFS25D, MFS30D\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eComplete Service\/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 service kit includes the following components:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e161572\u003c\/strong\u003e (Insert Cup) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e47-16154-1\u003c\/strong\u003e (Impeller) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e27-161602\u003c\/strong\u003e (Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e161592\u003c\/strong\u003e (Plate) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e27-161582\u003c\/strong\u003e (Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e28-161551\u003c\/strong\u003e (Key) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e910103-5652\u003c\/strong\u003e (Screw) × 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8M0119207\u003c\/strong\u003e (Thermostat) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e27-853702005\u003c\/strong\u003e (Thermostat Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e35-8M0088825\u003c\/strong\u003e (Fuel Filter) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e35-8M0162831\u003c\/strong\u003e (Oil Filter) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8M007119\u003c\/strong\u003e (Drain Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8M02046936\u003c\/strong\u003e (Drain Gasket) × 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12-895146\u003c\/strong\u003e (Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8150264\u003c\/strong\u003e (Cotter Pin) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24OP149\u003c\/strong\u003e (Gear Oil Pump) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3R3-01030-0\u003c\/strong\u003e (Thermostat) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e346-01032-0\u003c\/strong\u003e (Thermostat Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3AD-02230-0\u003c\/strong\u003e (Fuel Filter) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3BJ-07615-0\u003c\/strong\u003e (Oil Filter) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2049\u003c\/strong\u003e (Drain Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2492\u003c\/strong\u003e (Drain Gasket) × 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3R3-07406-0\u003c\/strong\u003e (Gasket) × 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e951503-0322\u003c\/strong\u003e (Cotter Pin) × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This kit contains duplicate components with different part numbers to ensure compatibility across MFS25\/30C and MFS25\/30D engine variants. Verify which components apply to your specific model before installation.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Gather all necessary tools including screwdrivers, wrenches, and a service manual for your specific Tohatsu model. Ensure the engine is off and cool before beginning work.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater Pump Disassembly:\u003c\/strong\u003e Remove the lower unit and locate the water pump housing. Carefully remove the screws securing the housing cover using the appropriate size driver.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemove Old Components:\u003c\/strong\u003e Extract the old impeller, gaskets, insert cup, and plate. Inspect the housing for debris, corrosion, or scoring that may affect seal integrity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall Insert Cup and Plate:\u003c\/strong\u003e Place the new insert cup (161572) and plate (161592) into the housing, ensuring proper orientation per your service manual.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall Impeller:\u003c\/strong\u003e Lubricate the new impeller (47-16154-1) with water pump grease and carefully insert it, bending the vanes in the direction of rotation. Install the key (28-161551) in its slot.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstall Gaskets and Reassemble:\u003c\/strong\u003e Position the new gaskets (27-161602, 27-161582) and secure the water pump housing with the provided screws (910103-5652). Torque to specification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Thermostats:\u003c\/strong\u003e Locate the thermostat housings and remove the old thermostats. Install the new thermostats (8M0119207, 3R3-01030-0) with fresh gaskets (27-853702005, 346-01032-0).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Fuel Filter:\u003c\/strong\u003e Disconnect the fuel line and remove the old fuel filter. Install the new fuel filter (35-8M0088825 or 3AD-02230-0) ensuring proper flow direction.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Oil Filter:\u003c\/strong\u003e Drain the engine oil and remove the old oil filter. Install the new oil filter (35-8M0162831 or 3BJ-07615-0) with a light coating of fresh oil on the gasket.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplace Drain Gaskets:\u003c\/strong\u003e When draining gear oil, replace all drain plug gaskets (8M007119, 8M02046936, 2049, 2492) to prevent leaks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefill Fluids:\u003c\/strong\u003e Use the included gear oil pump (24OP149) to refill the lower unit with the manufacturer-recommended gear oil. Refill engine oil to the proper level and reconnect fuel lines.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal Inspection:\u003c\/strong\u003e Reinstall the lower unit, install the cotter pins (8150264, 951503-0322) where required, and perform a thorough visual inspection. Start the engine and check for proper water flow, leaks, and normal operating temperature.\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 service kit fits my Tohatsu engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Verify that your engine model is MFS25C, MFS30C, MFS25D, or MFS30D. Cross-reference the OEM part number 3NV-87500-0 with your engine's service manual or parts diagram to ensure compatibility.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I perform this service and replace these components?\u003c\/strong\u003e\u003cbr\u003e\nA: Tohatsu recommends servicing the water pump impeller annually or every 100 operating hours, whichever comes first. Filters and thermostats should be inspected annually and replaced as needed, typically every 1–2 years depending on usage conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my water pump or thermostat needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include engine overheating, weak or no water discharge from the telltale, steam from the engine, or inconsistent operating temperatures. If you observe any of these signs, inspect and replace the water pump and thermostat immediately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why does this kit include duplicate components with different part numbers?\u003c\/strong\u003e\u003cbr\u003e\nA: The MFS25\/30C and MFS25\/30D models use slightly different components for certain items like thermostats, filters, and gaskets. This kit includes both variants to ensure complete coverage; use the components that match your specific engine model as shown in your service manual.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I install this service 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 perform this service following the installation guide and your engine's service manual. However, professional installation is recommended if you are unfamiliar with outboard maintenance to ensure safety and proper function.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this an OEM or aftermarket service kit?\u003c\/strong\u003e\u003cbr\u003e\nA: This 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\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We 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\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This 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":52418416705849,"sku":"23KM775-4N","price":68.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/kit-23KM775-4N_9edc8119-8cef-4244-8ed7-22376c8e1f49.png?v=1776686930","url":"https:\/\/jlmmarine.com\/products\/3nv-87500-0-service-kit-for-tohatsu-mfs25c-mfs30c-mfs25d-mfs30d-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}