{"product_id":"sierra-18-3082-water-pump-impeller-for-johnson-evinrude-omc-outboards-replaces-omc-382547","title":"Sierra 18-3082 Impeller, OEM OMC 382547 Replacement for Evinrude 55\/60\/65\/70 HP Outboards","description":"\u003cp\u003eThe Sierra 18-3082 is a water pump impeller for Evinrude outboard motors, designed to circulate cooling water through the engine and keep it running at safe operating temperatures. As the impeller wears or the vanes take a set, cooling flow drops and the engine is at risk of overheating, so this part is a routine maintenance replacement for boat owners servicing their water pump. It is built to fit directly in place of the original impeller for the applicable Evinrude horsepower and year ranges, restoring proper water pump output without modification. The impeller is a direct cross-reference to OMC part number 382547, so it can be ordered using either the Sierra number or the OMC equivalent. It ships as a single impeller unit and is intended for use in salt water as well as fresh water service. Regular impeller replacement, typically as part of an annual water pump service, helps prevent premature wear on the pump housing and reduces the chance of a cracked engine block from overheating. This part is sold under the Sierra brand and is a recognized aftermarket equivalent used widely for Evinrude water pump rebuilds.\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 18-3082\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.21 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e white\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 4 Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Engine Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e For Salt Water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999315342\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e OMC 382547\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvinrude 55 HP, 1968-1969\u003c\/li\u003e\n\u003cli\u003eEvinrude 60 HP, 1970-1971\u003c\/li\u003e\n\u003cli\u003eEvinrude 65 HP, 1972-1973\u003c\/li\u003e\n\u003cli\u003eEvinrude 70 HP, 1974-1978\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 382547\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3082 impeller fit?\u003c\/strong\u003e The Sierra 18-3082 fits Evinrude 55 HP outboards from 1968-1969, 60 HP outboards from 1970-1971, 65 HP outboards from 1972-1973, and 70 HP outboards from 1974-1978.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3082 the same as OMC 382547?\u003c\/strong\u003e Yes, the Sierra 18-3082 is a direct cross-reference to OMC part number 382547 and can be used as a drop-in equivalent.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3082 impeller weigh?\u003c\/strong\u003e The Sierra 18-3082 impeller weighs 0.21 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-3082 impeller?\u003c\/strong\u003e It is white, consistent with the standard rubber compound used in Sierra water pump impellers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this impeller be used in salt water?\u003c\/strong\u003e Yes, the Sierra 18-3082 is recommended for use in salt water applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3082 a genuine OMC part or aftermarket?\u003c\/strong\u003e The 18-3082 is a Sierra-brand aftermarket impeller manufactured as a replacement for the OMC 382547 impeller, not an OEM OMC part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my impeller needs replacing?\u003c\/strong\u003e Reduced water flow from the tell-tale, engine overheating, or a worn\/cracked impeller vane are signs the Sierra 18-3082 impeller should be replaced during water pump service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3082?\u003c\/strong\u003e The order includes one Sierra 18-3082 impeller unit; it does not include the water pump housing or gasket kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-3082 fit a 1980 Evinrude 55 HP?\u003c\/strong\u003e No, the 18-3082 covers the 1968-1969 model years for the 55 HP; a 1980 Evinrude 55 HP uses a different Sierra impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engine type is the 18-3082 designed for?\u003c\/strong\u003e The Sierra 18-3082 is designed for 4-stroke gasoline outboard engines within its listed Evinrude fitment range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3082 mounted inside the water pump housing?\u003c\/strong\u003e Yes, it is an engine-mounted impeller that installs inside the water pump housing on the applicable Evinrude outboards.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988139618523,"sku":"SIE-18-3082","price":31.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3082_lg__03976.1558125855.500.750.jpg?v=1785189037","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3082-water-pump-impeller-for-johnson-evinrude-omc-outboards-replaces-omc-382547","provider":"Good Vibes Marina","version":"1.0","type":"link"}