{"product_id":"sierra-18-3474-water-pump-repair-kit-without-housing-for-yamaha-vf225-vf250-outboards-2009-2018-replaces-6cb-w0078-00-00","title":"Sierra Water Pump Repair Kit 18-3474, Without Housing, Replaces 6CB-W0078-00-00, Fits Yamaha VF225, VF250 (2009-18)","description":"\u003cp\u003eThe Sierra 18-3474 Water Pump Repair Kit is a without-housing rebuild kit designed to restore cooling system performance on compatible Yamaha outboards. Rather than replacing the entire water pump housing, this kit supplies the wear components that fail first in normal service, letting you refresh the pump at a fraction of the cost of a full housing replacement. It is built for Yamaha VF225 and VF250 outboards (2009-18) and directly replaces OEM part number 6CB-W0078-00-00.\u003c\/p\u003e\u003cp\u003eThe kit includes a cup insert (Sierra 18-3519, OE equivalent 61A-44322-02) and a water pump gasket (Sierra 18-0451), the two components most commonly worn or damaged during routine water pump service. Installing fresh replacement parts during a rebuild helps maintain proper impeller seating and a tight seal against the pump housing, both of which are important for consistent raw water flow to the engine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-3474\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Pump Repair Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Included:\u003c\/strong\u003e No (Without Housing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282376826\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Cup Insert (18-3519, OE 61A-44322-02), Water Pump Gasket (18-0451)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 6CB-W0078-00-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Yamaha VF225, VF250 (2009-18)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYamaha VF225 (2009-18)\u003c\/li\u003e\n\u003cli\u003eYamaha VF250 (2009-18)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e6CB-W0078-00-00\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3474 water pump repair kit include?\u003c\/strong\u003e The kit includes a cup insert (Sierra 18-3519, OE equivalent 61A-44322-02) and a water pump gasket (Sierra 18-0451). It does not include the water pump housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboards does 18-3474 fit?\u003c\/strong\u003e Sierra 18-3474 fits Yamaha VF225 and VF250 outboards (2009-18).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this kit replace?\u003c\/strong\u003e Sierra 18-3474 replaces OEM number 6CB-W0078-00-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this kit come with a new water pump housing?\u003c\/strong\u003e No. The 18-3474 kit is a without-housing repair kit, supplying only the cup insert and gasket needed to rebuild the existing housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3474 water pump kit weigh?\u003c\/strong\u003e The Sierra 18-3474 kit weighs 1.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3474 kit an OEM or aftermarket part?\u003c\/strong\u003e It is a Sierra aftermarket repair kit manufactured as a direct replacement for OEM part 6CB-W0078-00-00.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the cup insert part number included in this kit?\u003c\/strong\u003e The cup insert included in the 18-3474 kit is Sierra part 18-3519, with OE equivalent 61A-44322-02.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the gasket part number included in the 18-3474 kit?\u003c\/strong\u003e Sierra part 18-0451 is the water pump gasket included in the 18-3474 repair kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this kit if I already have a good water pump housing?\u003c\/strong\u003e Yes. Since Sierra 18-3474 is sold without housing, it is intended for rebuilding an existing housing that is still in usable condition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for Sierra 18-3474?\u003c\/strong\u003e The UPC for the Sierra 18-3474 water pump repair kit is 808282376826.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988149481691,"sku":"SIE-18-3474","price":100.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3474__26897.1722518154.500.750.jpg?v=1785189135","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3474-water-pump-repair-kit-without-housing-for-yamaha-vf225-vf250-outboards-2009-2018-replaces-6cb-w0078-00-00","provider":"Good Vibes Marina","version":"1.0","type":"link"}