{"product_id":"sierra-18-3286-water-pump-impeller-repair-kit-for-omc-1964-1986-except-cobra-interchanges-mallory-9-45284","title":"Sierra 18-3286 Impeller Repair Kit for OMC Stern Drives, 1964-86, Except Cobra","description":"\u003cp\u003eThe Sierra 18-3286 Impeller Repair Kit is a water pump service kit built for OMC stern drives, 1964-86, except Cobra. It is designed for the technician or boat owner overhauling the water pump section of the lower unit rather than replacing the impeller alone, giving the pump housing a proper sealing surface and wear parts at the same time the impeller is serviced. The kit contains a pump liner (OEM 911844), an O-ring (OEM 310584), and a plate (OEM 313176), each manufactured to precision tolerances so they seat and seal correctly against the surrounding pump components. Installing these wear parts together with a new impeller during a water pump rebuild helps restore proper cooling water flow and reduces the chance of a repeat failure caused by a worn liner or a hardened, leaking O-ring. The Sierra 18-3286 is designed to be interchangeable with Mallory 9-45284, and Sierra states that each of its parts meets or exceeds the original equipment part it replaces. This kit is intended specifically for the 1964-86 OMC application listed and excludes the Cobra stern drive.\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 18-3286\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Impeller Repair Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e OMC stern drives, 1964-86, except Cobra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Pump Liner (Sierra 18-7129, OEM 911844), O-Ring (Sierra 18-7135, OEM 310584), Plate (Sierra 18-3141, OEM 313176)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 2.25 x 8 x 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.62 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999315762\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchange:\u003c\/strong\u003e Mallory 9-45284\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC stern drives, 1964-86, except Cobra\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMallory 9-45284\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3286 impeller repair kit fit?\u003c\/strong\u003e The 18-3286 kit fits OMC stern drives from 1964-86, except the Cobra stern drive, which is specifically excluded from this application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-3286 kit?\u003c\/strong\u003e This impeller repair kit contains a pump liner (OEM 911844), an O-ring (OEM 310584), and a plate (OEM 313176) for servicing the water pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3286 interchangeable with any other brand's part?\u003c\/strong\u003e Yes, the Sierra 18-3286 is designed to be interchangeable with Mallory 9-45284.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the pump liner in this kit cross to?\u003c\/strong\u003e The pump liner included in the Sierra 18-3286 kit corresponds to OEM number 911844.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3286 fit the OMC Cobra stern drive?\u003c\/strong\u003e No, the Cobra stern drive is specifically excluded from the 1964-86 application range covered by the Sierra 18-3286 kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3286 impeller repair kit weigh?\u003c\/strong\u003e The Sierra 18-3286 kit weighs 0.62 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the packaged dimensions of the Sierra 18-3286 kit?\u003c\/strong\u003e The Sierra 18-3286 impeller repair kit measures 2.25 x 8 x 10 inches as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the O-ring in the 18-3286 kit cross to?\u003c\/strong\u003e The O-ring supplied in the Sierra 18-3286 kit corresponds to OEM number 310584.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM number does the plate in the 18-3286 kit cross to?\u003c\/strong\u003e The plate included in the Sierra 18-3286 kit corresponds to OEM number 313176.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3286 a genuine Sierra part?\u003c\/strong\u003e Yes, the 18-3286 is a genuine Sierra manufactured part, built to precision tolerances to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat warranty applies to the Sierra 18-3286 kit?\u003c\/strong\u003e The Sierra 18-3286 impeller repair kit is covered under Sierra's standard customer satisfaction warranty, the same coverage applied across Sierra's parts line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years does the Sierra 18-3286 impeller repair kit cover?\u003c\/strong\u003e The 18-3286 kit covers 1964-86 OMC stern drive applications, except the Cobra model.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988142895323,"sku":"SIE-18-3286","price":68.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3286_lg__35389.1558125228.500.750.jpg?v=1785188704","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3286-water-pump-impeller-repair-kit-for-omc-1964-1986-except-cobra-interchanges-mallory-9-45284","provider":"Good Vibes Marina","version":"1.0","type":"link"}