{"product_id":"sierra-18-70958-molded-cooling-hose-replaces-mercruiser-32-8066361-thermostat-housing-to-starboard-exhaust-manifold-fits-4-3l-lx-5-0l-lx-5-7l-lx-350-mag-standard-cooling-design-iii","title":"Sierra 18-70958 Molded Hose, Transom to Oil Cooler, Replaces 32-96246A4\/32-96246A1\/32-96246, Fits MerCruiser 350 MAG Alpha and 5.7L Alpha","description":"\u003cp\u003eThe Sierra 18-70958 is a molded hose engineered to connect the transom to the oil cooler on a range of MerCruiser stern drive engines. It is built from marine-grade plastic material in white and is designed as a direct fit for the specific routing and bend pattern required between the transom fitting and the oil cooler, so it seats correctly without kinking or needing to be forced into place. Because engine bay hose runs are exposed to heat, oil, and constant vibration, a molded hose that matches the original bend geometry helps prevent chafing and premature cracking that can occur with generic straight hose cut to fit.\u003c\/p\u003e\u003cp\u003eThis hose is a replacement for the OEM numbers 32-96246A4, 32-96246A1, and 32-96246, and it fits a wide range of MerCruiser engines and drive combinations including the MC898, MC200, MC228, MC230, MC260, 300 Tempest MR, MC320 EFI, 350 MAG Alpha, 5.7L Alpha, 5.7LX and 5.7LX EFI Alpha, 454 MAG Alpha, and the 5.0L and 5.0LX Alpha. Always confirm the year and model of your engine against the fitment list before ordering to ensure the correct transom-to-oil-cooler hose for your specific setup.\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 18-70958\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Transom to oil cooler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-96246A4, 32-96246A1, 32-96246\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282265724\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser MC898 (1983-84)\u003c\/li\u003e\n\u003cli\u003eMerCruiser MC200 (1985-87)\u003c\/li\u003e\n\u003cli\u003eMerCruiser MC228 (1982-84)\u003c\/li\u003e\n\u003cli\u003eMerCruiser MC230 (1985-87)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 5.0L \u0026amp; 5.0LX Alpha (1988-95)\u003c\/li\u003e\n\u003cli\u003eMerCruiser MC260 (1983-87)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 300 Tempest MR (1985-86)\u003c\/li\u003e\n\u003cli\u003eMerCruiser MC320 EFI (1987-89)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 350 MAG Alpha (1986-96)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 5.7L Alpha (1988-96)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 5.7LX \u0026amp; 5.7LX EFI Alpha (1996)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 454 MAG Alpha (1986-88)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32-96246A4\u003c\/li\u003e\n\u003cli\u003e32-96246A1\u003c\/li\u003e\n\u003cli\u003e32-96246\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70958 hose connect on a MerCruiser engine?\u003c\/strong\u003e The Sierra 18-70958 is a molded hose that routes from the transom fitting to the oil cooler on applicable MerCruiser stern drive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich MerCruiser engines fit part number 18-70958?\u003c\/strong\u003e It fits the MC898 (1983-84), MC200 (1985-87), MC228 (1982-84), MC230 (1985-87), 5.0L \u0026amp; 5.0LX Alpha (1988-95), MC260 (1983-87), 300 Tempest MR (1985-86), MC320 EFI (1987-89), 350 MAG Alpha (1986-96), 5.7L Alpha (1988-96), 5.7LX \u0026amp; 5.7LX EFI Alpha (1996), and 454 MAG Alpha (1986-88).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-70958 the same as OEM hose 32-96246?\u003c\/strong\u003e Yes, the Sierra 18-70958 molded hose is the direct replacement for OEM numbers 32-96246A4, 32-96246A1, and 32-96246.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-70958 hose made of?\u003c\/strong\u003e This transom-to-oil-cooler hose is made of plastic material and is white in color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70958 hose weigh?\u003c\/strong\u003e The Sierra 18-70958 molded hose weighs 1.15 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill a generic straight hose work in place of the 18-70958?\u003c\/strong\u003e A generic straight length of hose can be cut to approximate the route, but the 18-70958 is molded to the original transom-to-oil-cooler bend pattern, which reduces the risk of kinking or chafing that a straight-cut substitute can develop over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70958 hose come with clamps or fittings?\u003c\/strong\u003e The Sierra 18-70958 is supplied as the molded hose itself for the transom-to-oil-cooler run; it does not include a listed set of clamps or fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70958 a genuine or aftermarket part?\u003c\/strong\u003e The 18-70958 is a Sierra-manufactured aftermarket replacement hose engineered to replace the OEM 32-96246 series parts, built to the original fit and routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use 18-70958 on a 454 MAG Alpha engine?\u003c\/strong\u003e Yes, the 18-70958 transom-to-oil-cooler hose is listed to fit the 454 MAG Alpha (1986-88).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-70958 fit both carbureted and EFI MerCruiser models?\u003c\/strong\u003e Yes, the fitment list for 18-70958 includes both carbureted models such as the 350 MAG Alpha and EFI models such as the MC320 EFI and 5.7LX EFI Alpha (1996).\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363227355,"sku":"SIE-18-70958","price":151.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70958_lg__36225.1558128924.500.750.jpg?v=1785189042","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-70958-molded-cooling-hose-replaces-mercruiser-32-8066361-thermostat-housing-to-starboard-exhaust-manifold-fits-4-3l-lx-5-0l-lx-5-7l-lx-350-mag-standard-cooling-design-iii","provider":"Good Vibes Marina","version":"1.0","type":"link"}