{"product_id":"impeller-kit-sherwood-10615k","title":"Sierra 18-3047 Raw Water Pump Impeller Kit","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/sierra-marine-engine-and-drive-parts-vector-logo.png?v=1777654573\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSierra 18-3047 Raw Water Pump Impeller Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"90\" data-end=\"364\"\u003eKeep your marine engine protected from overheating with the Sierra 18-3047 Impeller Kit. Designed as a high-quality replacement for several OEM water pump systems, this kit restores proper cooling water circulation and helps maintain reliable engine temperatures under load.\u003c\/p\u003e\n\u003cp data-start=\"366\" data-end=\"909\"\u003eThe raw water impeller is one of the most important maintenance components on any inboard engine. Over time, the rubber vanes can wear down, harden, or crack from heat and continuous use, reducing water flow and increasing the risk of overheating. Replacing the impeller at regular service intervals helps extend engine life and prevent costly repairs. Sierra builds the 18-3047 kit using durable marine-grade rubber compounds and corrosion-resistant materials designed to handle harsh boating conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"911\" data-end=\"1238\"\u003eThis kit is engineered as a direct replacement for several popular Sherwood, Jabsco, Mallory, and Volvo Penta pump systems, making installation straightforward on compatible applications. Cross references include Sherwood 10615K, Jabsco 18948-0001, Mallory 9-45706, and Volvo Penta 835874. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1240\" data-end=\"1243\"\u003e\n\u003ch3 data-section-id=\"lmqikf\" data-start=\"1245\" data-end=\"1273\"\u003eCommon Engine Fitments\u003c\/h3\u003e\n\u003cp data-start=\"1274\" data-end=\"1326\"\u003eThe Sierra 18-3047 impeller kit is commonly used on:\u003c\/p\u003e\n\u003cul data-start=\"1328\" data-end=\"1610\"\u003e\n\u003cli data-section-id=\"6kdhf8\" data-start=\"1328\" data-end=\"1363\"\u003eCrusader 305 CID marine engines\u003c\/li\u003e\n\u003cli data-section-id=\"fx691w\" data-start=\"1364\" data-end=\"1399\"\u003eCrusader 350 CID marine engines\u003c\/li\u003e\n\u003cli data-section-id=\"l8o0fr\" data-start=\"1400\" data-end=\"1435\"\u003eCrusader 454 CID marine engines\u003c\/li\u003e\n\u003cli data-section-id=\"kb5uk8\" data-start=\"1436\" data-end=\"1502\"\u003ePCM Ford and GM inboard engines with compatible Sherwood pumps\u003c\/li\u003e\n\u003cli data-section-id=\"1r6zgg3\" data-start=\"1503\" data-end=\"1525\"\u003eVolvo Penta AQ190A\u003c\/li\u003e\n\u003cli data-section-id=\"1oag1f1\" data-start=\"1526\" data-end=\"1548\"\u003eVolvo Penta AQ240A\u003c\/li\u003e\n\u003cli data-section-id=\"sh70dk\" data-start=\"1549\" data-end=\"1610\"\u003eSelect OMC Cobra and Sherwood raw water pump applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1612\" data-end=\"1734\"\u003eThese engines are widely found in classic inboard ski boats, cruisers, and stern drive applications from brands including:\u003c\/p\u003e\n\u003cul data-start=\"1736\" data-end=\"1842\"\u003e\n\u003cli data-section-id=\"19ibxy5\" data-start=\"1736\" data-end=\"1764\"\u003eCorrect Craft \/ Nautique\u003c\/li\u003e\n\u003cli data-section-id=\"s24zxy\" data-start=\"1765\" data-end=\"1780\"\u003eMasterCraft\u003c\/li\u003e\n\u003cli data-section-id=\"1lc4mvh\" data-start=\"1781\" data-end=\"1790\"\u003eSupra\u003c\/li\u003e\n\u003cli data-section-id=\"pnrrue\" data-start=\"1791\" data-end=\"1801\"\u003eMalibu\u003c\/li\u003e\n\u003cli data-section-id=\"xv9e39\" data-start=\"1802\" data-end=\"1813\"\u003eSea Ray\u003c\/li\u003e\n\u003cli data-section-id=\"10h00h7\" data-start=\"1814\" data-end=\"1828\"\u003eFour Winns\u003c\/li\u003e\n\u003cli data-section-id=\"47jw0u\" data-start=\"1829\" data-end=\"1842\"\u003eChaparral\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1844\" data-end=\"1999\"\u003eFitment can vary by raw water pump style and engine configuration, so confirming compatibility with part number \u003cstrong data-start=\"1956\" data-end=\"1967\"\u003e18-3047\u003c\/strong\u003e before ordering is recommended.\u003c\/p\u003e\n\u003chr data-start=\"2001\" data-end=\"2004\"\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"2006\" data-end=\"2022\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"2023\" data-end=\"2375\"\u003e\n\u003cli data-section-id=\"cjir2b\" data-start=\"2023\" data-end=\"2074\"\u003eHigh-quality marine raw water pump impeller kit\u003c\/li\u003e\n\u003cli data-section-id=\"1u0gvay\" data-start=\"2075\" data-end=\"2126\"\u003eHelps restore proper cooling system performance\u003c\/li\u003e\n\u003cli data-section-id=\"15wvbve\" data-start=\"2127\" data-end=\"2177\"\u003ePrevents overheating and premature engine wear\u003c\/li\u003e\n\u003cli data-section-id=\"umfy6z\" data-start=\"2178\" data-end=\"2246\"\u003eCompatible with Crusader, PCM, Volvo Penta, and Sherwood systems\u003c\/li\u003e\n\u003cli data-section-id=\"1t4we5s\" data-start=\"2247\" data-end=\"2307\"\u003eIncludes gaskets and sealing components for installation\u003c\/li\u003e\n\u003cli data-section-id=\"1b437fr\" data-start=\"2308\" data-end=\"2375\"\u003eBuilt from durable marine-grade materials for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2377\" data-end=\"2380\"\u003e\n\u003ch3 data-section-id=\"oraizx\" data-start=\"2382\" data-end=\"2424\"\u003eWhy Routine Impeller Service Matters\u003c\/h3\u003e\n\u003cp data-start=\"2425\" data-end=\"2676\"\u003eA worn impeller can reduce cooling efficiency long before complete failure occurs. Routine replacement helps maintain proper water circulation, protects internal engine components, and reduces the chance of overheating-related breakdowns on the water.\u003c\/p\u003e\n\u003cp data-start=\"2678\" data-end=\"2921\"\u003eIf you’re servicing a compatible Crusader, PCM, Volvo Penta, or Sherwood-equipped marine engine, the Sierra 18-3047 impeller kit delivers dependable cooling performance and OEM-style fitment you can trust.\u003c\/p\u003e","brand":"Land 'N' Sea","offers":[{"title":"Default Title","offer_id":48745472786689,"sku":"47-3047","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/47-3047.jpg?v=1778089488","url":"https:\/\/inboardpartshq.com\/products\/impeller-kit-sherwood-10615k","provider":"Inboard Parts HQ","version":"1.0","type":"link"}