{"product_id":"molded-circulating-pump-hose-for-mercruiser-4-3l-5-0l-5-7l-replaces-32-861590a2-sierra-18-71337","title":"Sierra 18-71337 Molded Circulating Pump Hose, 1 3\/4 Inch ID, for 4.3L 5.0L 5.7L Marine Engines","description":"\u003cp\u003eThe Sierra 18-71337 is a molded circulating pump hose built for marine engines, designed to carry coolant between the circulating pump and engine block on 4.3L, 5.0L, and 5.7L powerplants. Constructed from a plastic and rubber material blend, the hose holds its molded shape under engine bay heat and vibration instead of collapsing or kinking the way a straight-cut length of tubing can. Its 1 3\/4 inch inside diameter and 12 3\/4 inch length are engineered to match factory routing, so it drops into the original hose run without trimming or reshaping.\u003c\/p\u003e\u003cp\u003eThis hose is a direct fit for engines originally fitted with a range of OEM circulating pump hoses, and it is built to meet or exceed the performance of the part it replaces. It is a straightforward swap for anyone doing routine cooling system maintenance or replacing a cracked, hardened, or leaking hose before it causes a coolant loss or overheating issue underway.\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 18-71337\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Hose (Circulating Pump Hose)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 1 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 12 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic, Rubber\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 0.92 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999568243\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e 4.3L, 5.0L, 5.7L marine engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits 4.3L, 5.0L, and 5.7L marine engines as a circulating pump hose.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMallory 9-44052\u003c\/li\u003e\n\u003cli\u003eMercruiser 32-33189\u003c\/li\u003e\n\u003cli\u003eMercruiser 32-33189A1\u003c\/li\u003e\n\u003cli\u003eOMC 312781\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the Sierra 18-71337 hose designed for?\u003c\/strong\u003e The Sierra 18-71337 molded circulating pump hose is designed for 4.3L, 5.0L, and 5.7L marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of this hose?\u003c\/strong\u003e The 18-71337 has a 1 3\/4 inch inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the Sierra 18-71337 hose?\u003c\/strong\u003e It measures 12 3\/4 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-71337 hose made of?\u003c\/strong\u003e Sierra molds this hose from a plastic and rubber material blend for heat and vibration resistance in the engine bay.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose replace my OEM circulating pump hose?\u003c\/strong\u003e Yes, the 18-71337 is built as a direct replacement for the OEM circulating pump hose on 4.3L, 5.0L, and 5.7L engines and is designed to meet or exceed original equipment performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-71337 cross-reference to Mercruiser part numbers?\u003c\/strong\u003e Yes, the Sierra 18-71337 hose is interchangeable with Mercruiser 32-33189 and 32-33189A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose the same part as OMC 312781?\u003c\/strong\u003e Yes, the 18-71337 is interchangeable with OMC 312781, used on both OMC inboard and OMC stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose cross to a Mallory part number?\u003c\/strong\u003e Yes, the 18-71337 is interchangeable with Mallory 9-44052.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-71337 hose?\u003c\/strong\u003e It is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-71337 hose weigh?\u003c\/strong\u003e The hose weighs 0.92 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this hose?\u003c\/strong\u003e One Sierra 18-71337 molded circulating pump hose is included; no clamps or fittings are packaged with it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-71337 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-71337 is a genuine Sierra International part, manufactured to meet or exceed the performance of the original equipment hose it replaces.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988364341467,"sku":"SIE-18-71337","price":47.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-71337_lg__16363.1558129135.500.750.jpg?v=1785188094","url":"https:\/\/www.goodvibesmarina.com\/products\/molded-circulating-pump-hose-for-mercruiser-4-3l-5-0l-5-7l-replaces-32-861590a2-sierra-18-71337","provider":"Good Vibes Marina","version":"1.0","type":"link"}