{"title":"Tohatsu BFT250A US (2018) Parts \u0026 Diagrams","description":"\u003cp\u003eOEM and aftermarket replacement parts for Tohatsu BFT250A US. Scroll down for exploded parts diagrams (56), specifications, and maintenance reference.\u003c\/p\u003e","products":[{"product_id":"water-pump-impeller-for-honda-175-200-225-250-hp-90752-zy3-000","title":"19210-ZY3-003 Water Pump Impeller with Key for Honda BF175A BF200A BF225A BF250A | JLM Marine","description":"\u003ch2\u003eWater Pump Impeller with Key for Honda BF175A BF200A BF225A BF250A\u003c\/h2\u003e\n\n\u003cp\u003eThis premium aftermarket water pump impeller is engineered to fit Honda outboard engines ranging from 175 HP to 250 HP across multiple model series. Designed for reliable cooling system performance, it ensures your engine operates at optimal temperatures in all conditions.\u003c\/p\u003e\n\n\u003cp\u003eThis impeller directly replaces Honda Marine OEM part number \u003cstrong\u003e19210-ZY3-003\u003c\/strong\u003e, as well as aftermarket equivalents from Sierra Marine (\u003cstrong\u003e18-3031\u003c\/strong\u003e), Mallory Marine (\u003cstrong\u003e9-45106\u003c\/strong\u003e), and CEF (\u003cstrong\u003e500391\u003c\/strong\u003e). It is a complete solution that includes the impeller and drive key for straightforward installation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eConstructed from durable \u003cstrong\u003eneoprene and hardened nylon\u003c\/strong\u003e for extended service life\u003c\/li\u003e\n  \u003cli\u003eFeatures \u003cstrong\u003e6 blades\u003c\/strong\u003e designed to match OEM specifications\u003c\/li\u003e\n  \u003cli\u003eIncludes drive key\/pin for complete installation\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\u003eHonda Marine\u003c\/td\u003e\n      \u003ctd\u003e19210-ZY3-003, 19210ZY3003\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSierra Marine\u003c\/td\u003e\n      \u003ctd\u003e18-3031\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMallory Marine\u003c\/td\u003e\n      \u003ctd\u003e9-45106\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCEF\u003c\/td\u003e\n      \u003ctd\u003e500391\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        \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\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF175A3, A6, AK1, AK2, AK3, D\u003c\/td\u003e\n        \u003ctd\u003e175 HP\u003c\/td\u003e\n        \u003ctd\u003eAll Years\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF200A2, A3, A6, AK1, AK2, AK3, D\u003c\/td\u003e\n        \u003ctd\u003e200 HP\u003c\/td\u003e\n        \u003ctd\u003eAll Years\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF225A, A2, A3, A6, AK1, AK2, D\u003c\/td\u003e\n        \u003ctd\u003e225 HP\u003c\/td\u003e\n        \u003ctd\u003eAll Years\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF250A, D\u003c\/td\u003e\n        \u003ctd\u003e250 HP\u003c\/td\u003e\n        \u003ctd\u003eAll Years\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\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003eNeoprene and Hardened Nylon\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Blades\u003c\/td\u003e\n      \u003ctd\u003e6\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eImpeller Height\u003c\/td\u003e\n      \u003ctd\u003e31.3 mm \/ 1.23 inch\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOverall Diameter\u003c\/td\u003e\n      \u003ctd\u003e89.2 mm \/ 3.51 inch\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHub Shaft Diameter\u003c\/td\u003e\n      \u003ctd\u003e26.0 mm \/ 1.02 inch\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNet Weight\u003c\/td\u003e\n      \u003ctd\u003e2.1 oz\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\u003eYour package includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003eOutboard Rubber Impeller with Key \/ Pin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and ensure the engine is completely cool before beginning work.\u003c\/li\u003e\n  \u003cli\u003eRemove the lower unit from the outboard motor following your engine's service manual.\u003c\/li\u003e\n  \u003cli\u003eLocate and disassemble the water pump housing, taking note of component orientation.\u003c\/li\u003e\n  \u003cli\u003eRemove the old impeller and thoroughly clean the pump housing of any debris or residue.\u003c\/li\u003e\n  \u003cli\u003eInspect the pump housing, wear plate, and gasket surfaces for damage or excessive wear.\u003c\/li\u003e\n  \u003cli\u003eLubricate the new impeller blades with glycerin or soapy water (never use petroleum-based products).\u003c\/li\u003e\n  \u003cli\u003eInsert the drive key\/pin into the impeller hub, ensuring it is properly seated.\u003c\/li\u003e\n  \u003cli\u003eInstall the impeller into the housing, rotating the driveshaft in the correct direction to align the blades.\u003c\/li\u003e\n  \u003cli\u003eReplace all gaskets and O-rings with new components to prevent leaks.\u003c\/li\u003e\n  \u003cli\u003eReassemble the water pump housing, ensuring all fasteners are torqued to specification.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, reconnect the battery, and test the cooling system by running the engine with a flush attachment.\u003c\/li\u003e\n  \u003cli\u003eMonitor water discharge from the telltale port to confirm proper pump operation.\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 impeller fits my Honda outboard?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-reference your engine model with the compatibility table above. Verify that your engine serial number matches the model series listed (BF175A, BF200A, BF225A, or BF250A variants). You can also check your existing impeller's part number against the cross-reference table.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace my water pump impeller?\u003c\/strong\u003e\u003cbr\u003e\nA: Most manufacturers recommend replacing the impeller every 2–3 years or 200–300 hours of operation, whichever comes first. If you frequently operate in sandy or debris-laden water, inspect and replace more often.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my impeller is failing?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include reduced or no water flow from the telltale port, engine overheating warnings, steam from the engine compartment, or reduced performance. Any of these signs warrant immediate inspection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use petroleum-based lubricants when installing this impeller?\u003c\/strong\u003e\u003cbr\u003e\nA: No. Petroleum-based products will damage the neoprene material. Use only glycerin, liquid soap, or dedicated impeller installation lubricant.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between this aftermarket impeller and the OEM version?\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":49524436042041,"sku":"17IH003K","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/Water_Pump_Impeller_for_Honda_175_200_225_250_HP_90752-ZY3-000_-_JLM_MARINE-8286585.png?v=1755253088"}],"url":"https:\/\/jlmmarine.com\/collections\/tohatsu-bft250a-us-2018.oembed","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}