{"product_id":"water-pump-impeller-for-omc-sterndrive-cobra-i-o-replaces-oem-983895-fits-2-3l-2-5l-3-0l-4-3l-5-0l-1986-1992-sierra-18-3058","title":"Sierra 18-3058 Water Pump Impeller, Replaces OMC 983895, for OMC Sterndrive\/Cobra 2.3L 2.5L 3.0L 4.3L","description":"\u003cp\u003eThe Sierra 18-3058 is a water pump impeller engineered as a direct replacement for OMC 983895 on OMC Sterndrive\/Cobra sterndrive cooling systems. The impeller is a core wear component of the raw water circulating pump, drawing cooling water through the engine to keep operating temperatures in check; over time the vanes lose flexibility and sealing ability, making periodic replacement necessary to prevent overheating and related engine damage. This part carries a machined finish and is supplied as a single impeller, ready to install into the existing water pump housing during routine maintenance or a full water pump rebuild.\u003c\/p\u003e\u003cp\u003eFitment covers OMC Sterndrive\/Cobra cooling systems across the 2.3L (1987-1990), 2.5L (1986), 3.0L (1986-1992), and 4.3L (1986-1992) engine lines. Note that on the 2.3L and 3.0L applications, this impeller does not fit models originally equipped with a short impeller or those retrofitted with a short impeller kit. Always confirm your engine's original impeller configuration before ordering to ensure the 18-3058 is the correct replacement for your pump.\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 18-3058\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 983895\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.14 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999315144\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e OMC Sterndrive\/Cobra Cooling System - 2.3L (1987-1990), 2.5L (1986), 3.0L (1986-1992), 4.3L (1986-1992)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC Sterndrive\/Cobra 2.3L, 1987-1990 (except models originally equipped with short impeller or retrofitted with short impeller kit)\u003c\/li\u003e\n\u003cli\u003eOMC Sterndrive\/Cobra 2.5L, 1986\u003c\/li\u003e\n\u003cli\u003eOMC Sterndrive\/Cobra 3.0L, 1986-1992 (except models originally equipped with short impeller or retrofitted with short impeller kit)\u003c\/li\u003e\n\u003cli\u003eOMC Sterndrive\/Cobra 4.3L, 1986-1992\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e983895\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3058 impeller replace?\u003c\/strong\u003e It replaces OMC 983895 and is designed to install as a direct equivalent in the OMC Sterndrive\/Cobra raw water pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does the 18-3058 impeller fit?\u003c\/strong\u003e This impeller fits OMC Sterndrive\/Cobra cooling systems on the 2.3L (1987-1990), 2.5L (1986), 3.0L (1986-1992), and 4.3L (1986-1992) engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3058 fit a 2.3L or 3.0L engine with a short impeller kit installed?\u003c\/strong\u003e No. On 2.3L and 3.0L OMC Sterndrive\/Cobra engines, the 18-3058 does not fit models originally equipped with a short impeller or those retrofitted with a short impeller kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3058 impeller weigh?\u003c\/strong\u003e The Sierra 18-3058 impeller weighs 0.14 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-3058 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-3058 is a Sierra-branded replacement impeller manufactured to serve as a direct substitute for OMC 983895, not an OMC-branded original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-3058 impeller have?\u003c\/strong\u003e It has a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many impellers come in the package?\u003c\/strong\u003e One 18-3058 impeller is included per package, along with no other components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need to replace my water pump impeller?\u003c\/strong\u003e Reduced cooling water flow, engine overheating, or a worn\/cracked impeller vane on inspection are signs the OMC Sterndrive\/Cobra water pump needs a new impeller such as the 18-3058.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3058 include a UPC for reordering?\u003c\/strong\u003e Yes, the Sierra 18-3058 impeller carries UPC 030999315144.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I cross-reference the 18-3058 by the OMC part number?\u003c\/strong\u003e Yes, searching OMC 983895 will identify the Sierra 18-3058 as its replacement impeller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 4.3L fitment for the 18-3058 have any exceptions?\u003c\/strong\u003e No exceptions are listed for the 4.3L (1986-1992) application; the short-impeller exception applies only to the 2.3L and 3.0L engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988137750747,"sku":"SIE-18-3058","price":20.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3058_lg__44662.1558124135.500.750.jpg?v=1785188446","url":"https:\/\/www.goodvibesmarina.com\/products\/water-pump-impeller-for-omc-sterndrive-cobra-i-o-replaces-oem-983895-fits-2-3l-2-5l-3-0l-4-3l-5-0l-1986-1992-sierra-18-3058","provider":"Good Vibes Marina","version":"1.0","type":"link"}