{"product_id":"uanofcn-water-pump-impeller-repair-kit-for-mercury-4-stroke-30-60-hp-efi-3-44-in-torpedo-long-tube-seal","title":"UANOFCN Water Pump Impeller Repair Kit for Mercury 4-Stroke 30-60 HP EFI — 3.44 in Torpedo, Long-Tube Seal","description":"\u003cb\u003eComplete water pump impeller repair kit engineered to replace Mercury Marine OEM 46-812966A12 for 4-stroke 30–60 HP EFI outboards.\u003c\/b\u003e\n\n\u003cp\u003eThis UANOFCN kit bundles the parts required to restore cooling performance on compatible Mercury 4-stroke outboard motors. It’s built for engines that require a long-tube seal and a torpedo (drive shaft) diameter of 3.44 in (87.38 mm). The set contains the impeller, housing, wear plates, gaskets, seals and small hardware so you can do a thorough pump service in one visit.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Mercury models and part numbers does this kit replace?\u003c\/h3\u003e\n\u003cp\u003eThis kit matches common Mercury 4-stroke EFI outboards in the 30–60 HP range and cross-references several OEM and aftermarket numbers. Use the part numbers below to confirm compatibility with your engine parts list.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect OEM cross-reference: 46-812966A12\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with: 46-14334A2, 46-14334A1, 46-812966A6, 46-812966A5, 46-812966A4\u003c\/li\u003e\n  \u003cli\u003eAftermarket equivalent: Sierra 18-3690\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know this is the correct torpedo size and seal length for my engine?\u003c\/h3\u003e\n\u003cp\u003eMeasure the torpedo (drive shaft sleeve) diameter before ordering; this kit is for the 3.44 in (87.38 mm) size. The included long-tube seal is intended specifically for 4-stroke lower units—2-stroke engines normally require a short-tube seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTorpedo diameter required: 3.44 in \/ 87.38 mm\u003c\/li\u003e\n  \u003cli\u003eIncludes a long tube seal suitable for 4-stroke lower units\u003c\/li\u003e\n  \u003cli\u003eNot suitable if your engine specification calls for a short-tube seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and what will I need to complete the repair?\u003c\/h3\u003e\n\u003cp\u003eThe package contains all the primary components needed to rebuild the water pump assembly so you can replace worn parts and restore proper coolant flow. You may still need basic tools and marine-grade lubricant for installation and sealing surfaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWater pump impeller and impeller key\u003c\/li\u003e\n  \u003cli\u003ePump housing, base, wear plate and lower wear plate gasket\u003c\/li\u003e\n  \u003cli\u003eUpper gasket, tube seal, O-rings, plastic washer, metal seal and stainless washers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen should I replace the entire water pump assembly instead of just the impeller?\u003c\/h3\u003e\n\u003cp\u003eReplace the full kit when you find hardened or badly eroded impeller blades, corroded housings, or leaking seals. A complete repair kit reduces the chance of repeated failures and addresses both rotating and sealing surfaces at once.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace when impeller rubber is brittle, torn or warped\u003c\/li\u003e\n  \u003cli\u003eReplace if pump housing or wear plate is scored or corroded\u003c\/li\u003e\n  \u003cli\u003eReplace if you detect coolant leaks around the tube seal or gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boaters, marine mechanics and DIY enthusiasts who own Mercury 4-stroke 30–60 HP EFI outboards needing a full water pump rebuild will benefit from this UANOFCN kit. It’s aimed at users who prefer to replace all relevant parts at once—impeller, seals, gaskets and hardware—especially when the torpedo diameter is 3.44 in and a long tube seal is specified for the lower unit. Verify your engine model and torpedo measurement before ordering to ensure a correct fit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this kit for 2-stroke or 4-stroke Mercury outboards?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This kit is made for 4-stroke Mercury EFI outboards (30–60 HP) and includes a long tube seal; 2-stroke models require a short-tube seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What torpedo diameter does the kit fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit fits a torpedo (drive shaft sleeve) diameter of 3.44 inches (87.38 mm); measure before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"UANOFCN","offers":[{"title":"Default Title","offer_id":48084220313758,"sku":"B0BYZF446Z","price":84.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/uanofcn-front-packaging-impeller-kit.jpg?v=1785848657","url":"https:\/\/northtrailauto.ca\/products\/uanofcn-water-pump-impeller-repair-kit-for-mercury-4-stroke-30-60-hp-efi-3-44-in-torpedo-long-tube-seal","provider":"North Trail Auto","version":"1.0","type":"link"}