{"product_id":"sierra-18-3160-1-brass-sea-water-pump-for-mercruiser-v8-v-belt-2-piece-pump-replaces-46-72774a32","title":"Sierra 18-3160-1 Brass Sea Water Pump, OEM 723095, MerCruiser Bravo\/Inboard V-6 \u0026 V-8 305\/350\/496 CID","description":"\u003cp\u003eThe Sierra 18-3160-1 is a brass sea water pump built as a direct replacement for the raw water circulation pump on MerCruiser stern drive and inboard engines fitted with a brass pump body. This pump draws raw (lake, river, or sea) water through the engine's cooling circuit, keeping the block and exhaust manifolds within safe operating temperature. It is constructed of brass for corrosion resistance in raw water service, which also gives the housing its long service life compared to composite alternatives, and is finished in white.\u003c\/p\u003e\u003cp\u003eThis pump is designed to fit MerCruiser Bravo and inboard engines that use the brass sea water pump body, applicable from serial number 0M100001 and above, as well as 2000 and newer MerCruiser MCM V-6 and V-8 engines in 305, 350, and 496 CID displacements that are equipped with the brass sea water pump. It is a direct fit for engines originally equipped with OEM part number 723095. Because the water pump is a wear item exposed continuously to raw water and any grit or debris it carries, replacing it with a quality brass unit like the 18-3160-1 helps protect the engine from overheating caused by a worn or failing original pump. The unit ships as a complete pump assembly ready for installation in place of the original equipment pump.\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 18-3160-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\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 4.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282369668\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 723095\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Warranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser Bravo and Inboard engines with brass sea water pump body, serial number 0M100001 and above\u003c\/li\u003e\n\u003cli\u003eMerCruiser MCM V-6 and V-8 (305, 350 and 496 CID) engines, 2000 and newer, equipped with the brass sea water pump\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e723095\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-3160-1 sea water pump fit?\u003c\/strong\u003e The 18-3160-1 fits MerCruiser Bravo and inboard engines with the brass sea water pump body from serial number 0M100001 and above, and also fits 2000 and newer MerCruiser MCM V-6 and V-8 engines in 305, 350, and 496 CID displacements that use the brass sea water pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3160-1 a direct replacement for OEM part 723095?\u003c\/strong\u003e Yes, the 18-3160-1 is built as a direct equivalent to OEM part number 723095 and installs in place of that original MerCruiser pump.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 18-3160-1 sea water pump made of?\u003c\/strong\u003e It is constructed of brass, which resists corrosion from continuous raw water exposure and holds up better over time than composite pump bodies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3160-1 weigh?\u003c\/strong\u003e The pump weighs 4.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3160-1 fit engines with a plastic pump body?\u003c\/strong\u003e No, the 18-3160-1 is specifically for the brass sea water pump body configuration; MerCruiser engines with a plastic pump body use a different Sierra part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-3160-1 sea water pump?\u003c\/strong\u003e This sea water pump has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3160-1 fit any 305 or 350 CID MerCruiser?\u003c\/strong\u003e It fits 2000 and newer MerCruiser MCM V-6 and V-8 305, 350, and 496 CID engines specifically when those engines are equipped with the brass sea water pump, not the plastic-body version.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a gasket or seal kit included with the 18-3160-1?\u003c\/strong\u003e The 18-3160-1 is the complete brass sea water pump assembly; it is sold as the pump unit itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the warranty on the Sierra 18-3160-1 water pump?\u003c\/strong\u003e The 18-3160-1 carries a 90 day manufacturer warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my MerCruiser needs the brass or plastic sea water pump?\u003c\/strong\u003e Engines built with serial number 0M100001 and above using the brass pump body take the 18-3160-1; if your engine has the plastic pump body instead, a different Sierra part number is required, so checking the pump body material or the OEM part number (723095 for the brass version) confirms the correct fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat function does the 18-3160-1 sea water pump serve?\u003c\/strong\u003e It circulates raw water through the MerCruiser engine's cooling system, which keeps the block and exhaust manifolds at a safe operating temperature.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988140962011,"sku":"SIE-18-3160-1","price":304.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__22780.1753840719.500.750.jpg?v=1785188075","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3160-1-brass-sea-water-pump-for-mercruiser-v8-v-belt-2-piece-pump-replaces-46-72774a32","provider":"Good Vibes Marina","version":"1.0","type":"link"}