{"product_id":"uanofcn-outboard-water-pump-impeller-kit-for-mercury-30-60-hp-3-44-in-torpedo-neoprene-impeller-stainless-wear-plate","title":"UANOFCN Outboard Water Pump Impeller Kit for Mercury 30–60 HP — 3.44 in torpedo, neoprene impeller \u0026 stainless wear plate","description":"\u003cp\u003e\u003cstrong\u003eThe UANOFCN 812966A12 outboard water pump impeller kit is a full replacement kit engineered to restore cooling flow in Mercury 4-stroke 30–60 HP lower units when the torpedo measures 3.44 in (87.38 mm).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Mercury 30–60 HP EFI outboard is running hot or showing reduced water discharge, this kit supplies the core components needed to rebuild the lower-unit water pump. It replaces several OEM numbers and brings together the impeller, wear plate, housings, seals, gaskets, and hardware so you can perform a thorough repair without sourcing parts separately. Note: measure the torpedo diameter before ordering and choose the long tube seal only for 4-stroke engines; 2-stroke units require a short tube seal.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this kit help restore my outboard's cooling performance?\u003c\/h3\u003e\n\u003cp\u003eWorn impellers and damaged seals let cooling water bypass or stop flowing. This kit replaces the impeller and the supporting components that ensure a tight pumping chamber, restoring consistent water flow through the engine’s cooling passages.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes neoprene impeller designed to re-establish impeller vanes and suction.\u003c\/li\u003e\n  \u003cli\u003eStainless-steel wear plate reduces abrasion and improves longevity.\u003c\/li\u003e\n  \u003cli\u003eNew gaskets and O-rings prevent leaks that reduce pump pressure.\u003c\/li\u003e\n  \u003cli\u003eFull hardware set simplifies an accurate rebuild in one job.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich Mercury models and part numbers does this replace?\u003c\/h3\u003e\n\u003cp\u003eThis assembly is compatible with Mercury Marine 4-stroke 30, 40, 50 and 60 HP EFI lower units when the specified torpedo diameter matches. It cross-references multiple OEM and aftermarket numbers so you can confirm compatibility before buying.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Mercury Marine 4-stroke 30–60 HP EFI lower unit gearcase parts.\u003c\/li\u003e\n  \u003cli\u003eReplaces Mercury part numbers such as 812966A12 and related variants.\u003c\/li\u003e\n  \u003cli\u003eCross-compatible with Sierra 18-3690 and other listed replacements.\u003c\/li\u003e\n  \u003cli\u003eMeasure torpedo diameter: requires 3.44 in (87.38 mm) to match this kit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components and materials are included in the kit?\u003c\/h3\u003e\n\u003cp\u003eThe kit bundles the major internal pump parts and sealing hardware so you can do a complete overhaul of the pump area. Materials are selected for durability in salt and freshwater service around the impeller and wear surfaces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNeoprene impeller (47-19453T) for flexible vane performance.\u003c\/li\u003e\n  \u003cli\u003eStainless-steel wear plate and pump hardware for corrosion resistance.\u003c\/li\u003e\n  \u003cli\u003eNylon PA66 tube, non-asbestos gasket material, and multiple O-rings and seals.\u003c\/li\u003e\n  \u003cli\u003eComplete list: wear plate, pump base, housing, tube seal, upper\/lower gaskets, impeller key, O-rings, washers, and seals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I choose the correct tube seal and confirm fit?\u003c\/h3\u003e\n\u003cp\u003eBefore purchase, measure the torpedo diameter at the lower unit—this kit is sized for a 3.44 in (87.38 mm) torpedo. Also verify your engine is a 4-stroke if you need the long tube seal included; 2-stroke engines require the shorter seal variant.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasure torpedo diameter precisely; kit requires 3.44 in (87.38 mm).\u003c\/li\u003e\n  \u003cli\u003eLong tube seal supplied for 4-stroke lower units only.\u003c\/li\u003e\n  \u003cli\u003eIf your engine is 2-stroke, obtain the short tube seal alternative before installation.\u003c\/li\u003e\n  \u003cli\u003eCompare OEM part numbers listed to ensure matching fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: Boat owners and marine mechanics who service Mercury 30–60 HP 4-stroke outboards and want a one-box solution for a pump rebuild. It's ideal if you prefer replacing all wear items at once—impeller, sealing components, and wear surfaces—so you return the lower unit to reliable cooling performance without multiple orders. Confirm the torpedo diameter and engine stroke type before ordering to ensure correct fit and seal length.\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: Does this kit fit my Mercury 50 HP 4-stroke?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—if your lower unit torpedo measures 3.44 in (87.38 mm) and it's a 4-stroke EFI model, this kit is compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the included tube seal on a 2-stroke engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The kit includes a long tube seal only for 4-stroke engines; 2-stroke engines require a short tube seal.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"UANOFCN","offers":[{"title":"Default Title","offer_id":48083868549278,"sku":"B083HVQPYF","price":87.34,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/uanofcn-front-packaging-water-pump-kit.jpg?v=1785837781","url":"https:\/\/northtrailauto.ca\/products\/uanofcn-outboard-water-pump-impeller-kit-for-mercury-30-60-hp-3-44-in-torpedo-neoprene-impeller-stainless-wear-plate","provider":"North Trail Auto","version":"1.0","type":"link"}