{"product_id":"ghmarine-water-pump-impeller-repair-kit-for-yamaha-25-30-hp-61n-w0078-replacement-with-impeller-pump-cup-seals","title":"GHmarine Water Pump Impeller Repair Kit for Yamaha 25–30 HP — 61N-W0078 Replacement with Impeller, Pump Cup \u0026 Seals","description":"\u003cp\u003e\u003cstrong\u003eGHmarine 61N-W0078 is a complete water pump impeller repair kit engineered to restore cooling performance on Yamaha 25–30 HP outboard engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Yamaha 2-stroke C30 or 4-stroke F25 outboard is running hot, cavitating, or showing diminished cooling flow, this repair kit provides the core components needed to rebuild the lower unit cooling pump. The kit replaces Yamaha part numbers 61N-W0078-10\/11\/13\/14 and fits a range of 1993–1995 2-stroke models and select 4-stroke F-25 engines. GHmarine supplies the impeller, pump cup, housing, wear plate, mounting hardware, woodruff key, O-ring and water seal so you can complete a thorough repair in one service visit.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this kit fix overheating or reduced water flow?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn parts inside the water pump restores the seal and rotor action that draws cooling water through the engine. New components reduce leakage and re-establish consistent water circulation to the thermostat and lower unit. Proper installation eliminates common causes of intermittent overheating and extends engine life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFresh rubber impeller restores vane flexibility and suction.\u003c\/li\u003e\n  \u003cli\u003eNew pump cup and housing remove warped or corroded sealing surfaces.\u003c\/li\u003e\n  \u003cli\u003eWear plate provides a clean mating surface for efficient pumping.\u003c\/li\u003e\n  \u003cli\u003eSeals and O-ring stop bypass and prevent air ingestion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich Yamaha models and part numbers does this kit cover?\u003c\/h3\u003e\n\u003cp\u003eThe kit is compatible with several Yamaha 2-stroke 30HP C30 variants from the mid-1990s and certain Yamaha 4-stroke F-25 engines. It is supplied as a direct replacement for Yamaha 61N-W0078 series part numbers, making cross-referencing and ordering straightforward. Check your engine serial and model year to confirm fit before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Yamaha 2-stroke 30HP: C30ELRR (1993), C30ELRS (1994), C30MLHS (1994), C30ELRT (1995).\u003c\/li\u003e\n  \u003cli\u003eWorks with Yamaha 4-stroke F-25 series where specified.\u003c\/li\u003e\n  \u003cli\u003eDirect replace for 61N-W0078-10-00, -11-00, -13-00, -14-00.\u003c\/li\u003e\n  \u003cli\u003eVerify OEM part number and model year for precise compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and what tools will I need to install them?\u003c\/h3\u003e\n\u003cp\u003eThis GHmarine repair kit bundles all primary pump components so you avoid multiple orders. Typical installation requires basic marine mechanic tools and moderate mechanical skill; if you’re unfamiliar with lower-unit service, consider a professional technician. Installation restores the pump without needing additional engine-specific parts in most cases.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: impeller, pump cup, water pump housing, wear plate.\u003c\/li\u003e\n  \u003cli\u003eAlso included: bolts with washers, woodruff key, O-ring, and water seal.\u003c\/li\u003e\n  \u003cli\u003eSuggested tools: socket set, screwdrivers, torque wrench, puller for propeller.\u003c\/li\u003e\n  \u003cli\u003eAllow time for flange inspection and gasket surface cleaning before assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the kit and what maintenance helps longevity?\u003c\/h3\u003e\n\u003cp\u003eComponents are designed for marine environments and resist corrosion when installed correctly. Regular off-season checks and replacing the impeller every few years or at first signs of wear will maintain performance. Avoid running with a clogged intake or in shallow, debris-filled water to minimize premature damage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplace impeller at manufacturer-recommended intervals or if damaged.\u003c\/li\u003e\n  \u003cli\u003eInspect housing and wear plate for scoring before assembly.\u003c\/li\u003e\n  \u003cli\u003eKeep intake screens clean and clear of weeds and debris.\u003c\/li\u003e\n  \u003cli\u003eUse marine-grade lubricants on seals during installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boat owners, marine technicians and DIY mechanics with Yamaha outboards who need a reliable, all-in-one water pump rebuild solution for 25–30 HP engines. If you operate a 1993–1995 C30 series or compatible F-25 Yamaha motor and are troubleshooting cooling issues or performing scheduled lower-unit maintenance, this GHmarine kit provides the parts required to complete the repair quickly and accurately.\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: Can I install this kit myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, a mechanically skilled DIYer can install it with basic tools; follow torque specs and inspect mating surfaces. Consider a pro if unfamiliar with lower-unit service.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit fit my Yamaha 30HP from 1994?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits several 1994 Yamaha 30HP C30 variants; verify your engine model code (e.g., C30ELRS) and OEM part number before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GHmarine","offers":[{"title":"Default Title","offer_id":48082894487710,"sku":"B0BFRBHD86","price":52.84,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ghmarine-61n-w0078-front-packaging.jpg?v=1785818600","url":"https:\/\/northtrailauto.ca\/products\/ghmarine-water-pump-impeller-repair-kit-for-yamaha-25-30-hp-61n-w0078-replacement-with-impeller-pump-cup-seals","provider":"North Trail Auto","version":"1.0","type":"link"}