{"product_id":"sierra-18-70940-molded-cooling-hose-replaces-mercruiser-32-860144-thermostat-housing-to-port-exhaust-manifold-fits-5-0l-5-7l-efi-350-mag-mpi-6-2l-mpi","title":"Sierra Molded Coolant Hose 18-70940, Thermostat Housing to Port Exhaust Manifold, Replaces 32-860144","description":"\u003cp\u003eThe Sierra 18-70940 is a molded coolant hose engineered to route coolant from the thermostat housing to the port exhaust manifold on a range of MerCruiser stern drive engines. Built as a direct-fit replacement for Mercury Marine part 32-860144, it is molded to the OEM bend radius and connection geometry so it seats correctly at both the thermostat housing and the port exhaust manifold without kinking or requiring modification.\u003c\/p\u003e\u003cp\u003eThis hose is designed for engines including the 262 Mag with Fuel Cool, 4.3L-LX (1996 and up) with a one-piece manifold, 5.0L-EFI (1998 and up), 350 Mag-MPI (1997-2001), 5.7L-EFI (1996-97), and 6.2L MPI (2001 and up), as well as MCM V-6 and V-8 (305, 350, and 377 cid) engines. Because it is molded specifically for the port-side exhaust manifold routing, it is not interchangeable with a starboard-side hose; a separate Sierra part number covers the corresponding starboard application.\u003c\/p\u003e\u003cp\u003eReplacing a cracked, softened, or leaking coolant hose in this circuit helps prevent coolant loss and overheating, and installing the correct molded shape (rather than a straight or flexible substitute) avoids stress on the hose barbs at the thermostat housing and manifold. Weighing 0.74 pounds, this hose ships ready to install with standard hose clamps.\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 18-70940\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Coolant Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Thermostat housing to port exhaust manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.74 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-860144\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282227692\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e262 Mag with Fuel Cool\u003c\/li\u003e\n\u003cli\u003e4.3L-LX (1996 and up) with 1 pc. Manifold\u003c\/li\u003e\n\u003cli\u003e5.0L-EFI (1998 and up)\u003c\/li\u003e\n\u003cli\u003e350 Mag-MPI (1997-2001)\u003c\/li\u003e\n\u003cli\u003e5.7L-EFI (1996-97)\u003c\/li\u003e\n\u003cli\u003e6.2L MPI (2001 and up)\u003c\/li\u003e\n\u003cli\u003eMCM V-6 \u0026amp; V-8 (305, 350 \u0026amp; 377 cid) engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-860144\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70940 hose connect?\u003c\/strong\u003e The Sierra 18-70940 is a molded coolant hose that runs from the thermostat housing to the port exhaust manifold on applicable MerCruiser engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70940 hose for the port or starboard side?\u003c\/strong\u003e It is designed specifically for the port exhaust manifold routing. It is not interchangeable with the starboard side, which uses a different Sierra part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this hose replace?\u003c\/strong\u003e It replaces Mercury Marine part number 32-860144.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does the 18-70940 hose fit?\u003c\/strong\u003e It fits the 262 Mag with Fuel Cool, 4.3L-LX (1996 and up) with a one-piece manifold, 5.0L-EFI (1998 and up), 350 Mag-MPI (1997-2001), 5.7L-EFI (1996-97), 6.2L MPI (2001 and up), and MCM V-6 \u0026amp; V-8 (305, 350 \u0026amp; 377 cid) engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70940 hose weigh?\u003c\/strong\u003e 0.74 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose fit a 350 Mag-MPI engine?\u003c\/strong\u003e Yes, the 18-70940 is listed for 350 Mag-MPI engines from 1997 to 2001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70940 work on a 5.7L-EFI engine?\u003c\/strong\u003e Yes, it is designed for 5.7L-EFI engines from 1996-97.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-70940 and the 18-70943 hose?\u003c\/strong\u003e The 18-70940 covers the 262 Mag, 4.3L-LX, 5.0L-EFI, 350 Mag-MPI, 5.7L-EFI, and 6.2L MPI engines and replaces 32-860144, while the 18-70943 covers larger 7.4L, 454 Mag, and 502 Mag engines and replaces 32-897491. Both route the thermostat housing to the port exhaust manifold but fit different engine displacements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose genuine Sierra or aftermarket?\u003c\/strong\u003e The 18-70940 is a Sierra part number, sold as a molded replacement hose engineered to the same fit as the original Mercury Marine 32-860144 hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-70940 on a 4.3L engine?\u003c\/strong\u003e Yes, it fits the 4.3L-LX (1996 and up) with a one-piece manifold.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70940 fit 6.2L MPI engines?\u003c\/strong\u003e Yes, it is listed for 6.2L MPI engines from 2001 and up.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363161819,"sku":"SIE-18-70940","price":43.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70940_lg__75511.1558130729.500.750.jpg?v=1785187995","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-70940-molded-cooling-hose-replaces-mercruiser-32-860144-thermostat-housing-to-port-exhaust-manifold-fits-5-0l-5-7l-efi-350-mag-mpi-6-2l-mpi","provider":"Good Vibes Marina","version":"1.0","type":"link"}