{"product_id":"osculati-16-194-49-replacement-impeller-cef-166","title":"Osculati 16.194.49 Replacement Impeller (CEF 166)","description":"\u003cp\u003eA 12-blade neoprene flexible impeller for Sherwood raw water pumps, fitting a wide range of inboard engines from Westerbeke, Onan, Chris Craft, Gray Marine and others. If you own a classic American inboard or a Westerbeke diesel auxiliary, there's a good chance this is the impeller you need.\u003cbr\u003e\u003cbr\u003eThe impeller sits at the heart of your raw water cooling circuit, drawing seawater through the hull and pushing it around the engine. Over time the rubber blades fatigue and lose their flexibility — at which point cooling flow drops and the risk of overheating rises sharply. Annual replacement is the standard recommendation regardless of condition, and it's always worth keeping a spare on board.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e•    Outside diameter: 57mm\u003cbr\u003e•    Length: 20mm\u003cbr\u003e•    Shaft bore: 12.7mm (½\" keyed \/ square key drive)\u003cbr\u003e•    Blades: 12\u003cbr\u003e•    Material: Neoprene\u003cbr\u003e•    Supplied with: gasket\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCompatible Sherwood pump models\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eR30G · G701 · G702 · H70 · H80 · M10095G · M10261G · M10262G · N10360GX · Q10840 · A20 · E05 · E20\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTypical engine applications\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e•    Westerbeke: Pilot 10–20, 6-cylinder diesel series, Gov Life Boat\u003cbr\u003e•    Onan: 6.5–10 KW marine generator sets\u003cbr\u003e•    Chris Craft: Model B, Model 283, Model 430\u003cbr\u003e•    Gray Marine: Gov series\u003cbr\u003e•    Palmer: I.H.60\u003cbr\u003e\u003c\/p\u003e","brand":"Boat Fittings","offers":[{"title":"Default Title","offer_id":57252950868343,"sku":"SM-2194","price":25.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/5679\/9306\/files\/SM-2194-3.jpg?v=1782922778","url":"https:\/\/www.boatfittings.co.uk\/products\/osculati-16-194-49-replacement-impeller-cef-166","provider":"Boat Fittings","version":"1.0","type":"link"}