{"title":"Cooling Hoses \u0026 Fittings","description":null,"products":[{"product_id":"sierra-18-0389-heat-exchanger-end-gasket-replaces-mercruiser-27-99960-3-15-16-in-mercruiser-cooling-system","title":"Sierra 18-0389 Heat Exchanger End Gasket, Replaces 27-75450, 224 CID, 2-3\/4 Inch Diameter","description":"\u003cp\u003eThe Sierra 18-0389 Heat Exchanger End Gasket seals the end cover of the heat exchanger on 224 CID marine engines, forming the barrier between the raw water and coolant sides of the cooling system. It is built as a direct cross-reference replacement for OEM number 27-75450, giving boat owners and marine technicians a reliable option for cooling system service and rebuilds without waiting on OEM parts. The gasket measures 2-3\/4 inches in diameter, sized to match the heat exchanger end cover it is designed for.\u003c\/p\u003e\u003cp\u003eThis gasket is a wear item that should be replaced any time the heat exchanger end cap is removed for inspection, descaling, or cleaning, since a used gasket will not reliably reseal and can allow coolant or raw water leakage. Installing a fresh gasket at each service interval helps maintain proper sealing pressure across the heat exchanger end cover and supports consistent engine cooling performance. As part of the Mercruiser cooling system parts group, it is intended for use during routine heat exchanger maintenance and cooling system rebuilds.\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 18-0389\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Heat Exchanger End Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 2-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e 224 CID\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 27-75450\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Multicoloured\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999873705\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for 224 CID marine engines using a heat exchanger cooling system.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-75450\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0389 Heat Exchanger End Gasket fit?\u003c\/strong\u003e The Sierra 18-0389 is designed for 224 CID marine engines that use a heat exchanger cooling system, sealing the heat exchanger end cover.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-0389 gasket replace?\u003c\/strong\u003e It replaces OEM number 27-75450, making it a direct cross-reference for that original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the diameter of this gasket?\u003c\/strong\u003e The Sierra 18-0389 Heat Exchanger End Gasket measures 2-3\/4 inches in diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one package?\u003c\/strong\u003e Each package of the 18-0389 contains a package quantity of 1 gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0389 gasket weigh?\u003c\/strong\u003e It weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should this heat exchanger end gasket be replaced?\u003c\/strong\u003e Replace the 18-0389 gasket any time the heat exchanger end cover is removed for cleaning, descaling, or inspection, since a reused gasket will not reseal reliably.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0389 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-0389 is a Sierra aftermarket gasket manufactured as a cross-reference replacement for OEM part 27-75450, not an OEM-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat happens if this gasket is not replaced during heat exchanger service?\u003c\/strong\u003e Reinstalling an old, compressed gasket on the heat exchanger end cover of a 224 CID engine can lead to coolant or raw water leaks at the end cover seam.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and color is the 18-0389 gasket?\u003c\/strong\u003e The Sierra 18-0389 is a round gasket with a multicoloured appearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0389 gasket suitable for a cooling system rebuild?\u003c\/strong\u003e Yes, it is intended for use in heat exchanger maintenance and cooling system rebuilds on 224 CID marine engines.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988073099483,"sku":"SIE-18-0389","price":8.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0389_lg__31448.1558120273.500.750.jpg?v=1785188573"},{"product_id":"sierra-18-0563-water-tube-rubber-seal-for-mercury-mariner-outboards-replaces-oem-26-36556","title":"Sierra 18-0563 Water Tube Rubber Seal - OEM 26-36556 for Mercury\/Mariner Outboard Motors","description":"\u003cp\u003eThe Sierra 18-0563 is a rubber water tube seal engineered for Mercury and Mariner outboard motor cooling systems. This small but essential seal fits over the water tube where it passes between the powerhead and the lower unit, maintaining a watertight connection so raw water can travel through the cooling passages without leaking or allowing air intrusion. A worn, cracked, or hardened water tube seal is a common cause of overheating and cooling system leaks on outboard motors, and replacing it is a routine part of a lower unit reinstall or water pump service.\u003c\/p\u003e\u003cp\u003eMade from rubber for a durable, flexible seal against the water tube, the 18-0563 is manufactured to match OEM dimensions and cross-references directly to Mercury Marine part 26-36556, so it installs as a direct replacement without modification. Its compact size (0.39 x 0.39 x 0.39 inches) and light weight make it an inexpensive, easy-to-stock spare for anyone performing water pump impeller replacement or lower unit maintenance on compatible Mercury\/Mariner outboards.\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 18-0563\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Mercury Outboard Cooling System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999874627\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e Mercury Marine 26-36556\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Mercury\/Mariner outboard motors that use Mercury Marine water tube seal 26-36556.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e26-36556\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0563 water tube seal fit?\u003c\/strong\u003e The Sierra 18-0563 is designed for Mercury and Mariner outboard motors that use Mercury Marine water tube seal 26-36556.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0563 the same as Mercury part 26-36556?\u003c\/strong\u003e Yes, the Sierra 18-0563 cross-references directly to Mercury Marine part number 26-36556 and installs as a direct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-0563 seal made from?\u003c\/strong\u003e It is made from rubber, which provides the flexibility needed to seal tightly around the water tube.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow big is the Sierra 18-0563 water tube seal?\u003c\/strong\u003e The seal measures 0.39 x 0.39 x 0.39 inches and weighs 0.01 pounds, making it a small, lightweight component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should this water tube seal be replaced?\u003c\/strong\u003e The 18-0563 should be replaced when it is cracked, hardened, or leaking, and it is commonly replaced during a lower unit reinstall or water pump impeller service on Mercury\/Mariner outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan a bad water tube seal cause overheating?\u003c\/strong\u003e Yes, a worn or damaged water tube seal like the 18-0563 replacement can allow air intrusion or coolant leakage that leads to overheating in the outboard cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0563 an OEM or aftermarket part?\u003c\/strong\u003e The 18-0563 is an aftermarket seal manufactured by Sierra to the same specifications as Mercury Marine OEM part 26-36556.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-0563 come with installation hardware?\u003c\/strong\u003e No, the 18-0563 is the rubber water tube seal only; no additional hardware is included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need the 18-0563 versus a different seal?\u003c\/strong\u003e Confirm your outboard uses Mercury Marine water tube seal 26-36556; the Sierra 18-0563 is the direct match for that part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0563 seal reusable after removal?\u003c\/strong\u003e Water tube seals like the 18-0563 are generally replaced rather than reused once removed, since they can lose their sealing shape during disassembly.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988078768347,"sku":"SIE-18-0563","price":0.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0563_lg__39830.1558120582.500.750.jpg?v=1785189034"},{"product_id":"sierra-18-0871-1-service-valve-with-o-ring-replaces-johnson-evinrude-175158-fits-outboards-with-primer-valve","title":"Sierra 18-0871-1 Service Valve with O-Ring, Replaces 438996 436852, Fits V4 \u0026 V6 60 Degree Engines 1988-2001","description":"\u003cp\u003eThe Sierra 18-0871-1 Service Valve with O-Ring is a direct-fit replacement valve used in the cooling system of V4 and V6 (60 degree) outboard engines built from 1988 to 2001. It replaces OEM valves 438996 and 436852, restoring proper thermostat-housing or water-circuit sealing when the original valve wears out or the O-ring fails. The valve ships complete with its O-ring, so there is no need to source a separate seal to complete the repair.\u003c\/p\u003e\u003cp\u003eThis is a small, precision-machined component designed to seat correctly in the factory bore and hold pressure through normal engine operating temperatures. Because it is sized and shaped to the exact factory specification, it installs in place of the original valve without modification. Marine technicians and boat owners performing a cooling system service, thermostat replacement, or overheating diagnosis on a compatible V4 or V6 60 degree engine can use this valve as a like-for-like replacement part.\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 18-0871-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Service Valve with O-Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Service valve with O-ring (1 each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.65 x 7.2 x 5.9 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282378264\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 438996, 436852\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eV4 \u0026amp; V6 (60 degree) engines, 1988-2001\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e438996\u003c\/li\u003e\n\u003cli\u003e436852\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-0871-1 service valve fit?\u003c\/strong\u003e The Sierra 18-0871-1 Service Valve with O-Ring fits V4 \u0026amp; V6 (60 degree) engines built from 1988 to 2001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this valve include the O-ring?\u003c\/strong\u003e Yes, the 18-0871-1 ships as a complete service valve with its O-ring already included, so no separate seal needs to be purchased.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-0871-1 replace?\u003c\/strong\u003e It replaces OEM numbers 438996 and 436852.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-0871-1 a direct OEM replacement or an aftermarket equivalent?\u003c\/strong\u003e It is an aftermarket part manufactured by Sierra that is a direct equivalent to OEM valves 438996 and 436852 for V4 \u0026amp; V6 (60 degree) engines, 1988-2001.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-0871-1 service valve?\u003c\/strong\u003e The Sierra 18-0871-1 measures 0.65 x 7.2 x 5.9 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-0871-1 service valve weigh?\u003c\/strong\u003e 0.01 pounds is the shipping weight of the Sierra 18-0871-1 Service Valve with O-Ring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many valves come in one package?\u003c\/strong\u003e One Sierra 18-0871-1 Service Valve with O-Ring is included per unit, a count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this service valve?\u003c\/strong\u003e Replacement is typically needed when the O-ring seal degrades or the valve itself wears, causing coolant leaks or overheating in V4 \u0026amp; V6 (60 degree) engines from 1988-2001; the 18-0871-1 is used to restore the seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-0871-1 valve compatible with other engine types besides V4 \u0026amp; V6 (60 degree)?\u003c\/strong\u003e Fitment for the Sierra 18-0871-1 is specified for V4 \u0026amp; V6 (60 degree) engines, 1988-2001; other engine types are not listed for this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is used to identify the Sierra 18-0871-1?\u003c\/strong\u003e The UPC for the Sierra 18-0871-1 Service Valve with O-Ring is 808282378264.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988086010075,"sku":"SIE-18-0871-1","price":7.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0871_lg__89252.1684765090.500.750.jpg?v=1785188701"},{"product_id":"sierra-18-2587-power-steering-cooler-for-mercruiser-replaces-oem-99356a2-6-tube-bundle","title":"Sierra 18-2587 Transmission Oil Cooler, Replaces Mercruiser 99356A2 Power Steering Cooler","description":"\u003cp\u003eThe Sierra 18-2587 is a replacement power steering and transmission oil cooler built for Mercruiser applications, directly replacing Mercruiser part number 99356A2. It is designed to dissipate heat from power steering fluid circulating through the system, with a rated capacity of 4 GPM maximum for power steering fluid and 25 GPM maximum for the raw water side that cools it.\u003c\/p\u003e\u003cp\u003eThe cooler features a 6 inch tube bundle with an overall length of 8 inches, and a water inlet and outlet sized at 1 1\/4 inches (31.8mm) to match standard hose fittings. It ships bare metal with a machined exterior finish, leaving it ready for the installer to apply primer and factory paint to match the surrounding engine components.\u003c\/p\u003e\u003cp\u003eThis cooler is intended as a direct fit replacement wherever the original Mercruiser 99356A2 power steering cooler is specified, making it a straightforward swap for a failed or corroded factory unit.\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 18-2587\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Transmission Oil Cooler \/ Power Steering Cooler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e Mercruiser 99356A2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Inlet\/Outlet:\u003c\/strong\u003e 1 1\/4 inches (31.8mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Bundle Length:\u003c\/strong\u003e 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Steering Fluid Flow Rate:\u003c\/strong\u003e 4 GPM maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Flow Rate:\u003c\/strong\u003e 25 GPM maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Bare metal, machined, ready for primer and factory paint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.37 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282243630\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned as a replacement power steering cooler for Mercruiser applications.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 99356A2\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2587 replace?\u003c\/strong\u003e The Sierra 18-2587 replaces the Mercruiser power steering cooler with OEM part number 99356A2, making it a direct swap for that factory part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the overall length of this cooler?\u003c\/strong\u003e The Sierra 18-2587 has an overall length of 8 inches, built around a 6 inch tube bundle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size are the water inlet and outlet?\u003c\/strong\u003e The water inlet and outlet on the Sierra 18-2587 are sized at 1 1\/4 inches, or 31.8mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat flow rates is this cooler rated for?\u003c\/strong\u003e It is rated for a maximum of 4 GPM of power steering fluid and a maximum of 25 GPM of water flow on the cooling side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-2587 come painted?\u003c\/strong\u003e No, it ships bare metal with a machined exterior finish, ready for the installer to apply primer and factory paint to match the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2587 weigh?\u003c\/strong\u003e The Sierra 18-2587 transmission oil cooler weighs 1.37 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a power steering cooler or a transmission cooler?\u003c\/strong\u003e It functions as a power steering cooler for Mercruiser applications, cooling power steering fluid using raw water flow through the tube bundle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my Mercruiser?\u003c\/strong\u003e The Sierra 18-2587 is built as a replacement for the Mercruiser 99356A2 power steering cooler, so it fits wherever that original part is specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this part?\u003c\/strong\u003e The UPC for the Sierra 18-2587 transmission oil cooler is 808282243630.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2587 an OEM or aftermarket part?\u003c\/strong\u003e It is a Sierra-branded aftermarket replacement engineered to match the fit and function of the OEM Mercruiser 99356A2 power steering cooler.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988107374811,"sku":"SIE-18-2587","price":227.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__29232.1753840674.500.750.jpg?v=1785188247"},{"product_id":"sierra-18-2588-marine-transmission-oil-cooler-1-1-4-water-3-8-npt-oil-chrysler-inboard","title":"Sierra Transmission Oil Cooler 18-2588 for Chrysler Inboard Engines, 1 1\/4 Inch Water Inlet","description":"\u003cp\u003eThe Sierra 18-2588 Transmission Oil Cooler is a bare metal marine transmission oil cooler built for Chrysler Inboard applications. It uses a 1 1\/4 inch water hose connection and a 10 inch tube bundle with an overall length of 12 inches, giving it the cooling surface needed to keep transmission oil temperature under control during sustained inboard operation.\u003c\/p\u003e\u003cp\u003eOil enters and exits through a 9 inch x 2 inch fitting with a 3\/8 inch NPT inlet\/outlet, and the unit is rated for up to 6 GPM of oil flow and up to 25 GPM of water flow. It ships bare metal, ready for primer and factory paint finish, so it can be finished to match the engine compartment or left as-is for service use. The stainless steel construction is built to hold up in the marine environment where the cooler is mounted in the raw water cooling circuit.\u003c\/p\u003e\u003cp\u003eThis oil cooler is designed as a direct-fit replacement for the transmission cooling system on Chrysler Inboard engines, giving boat owners a straightforward way to restore proper transmission oil temperature control without modifying existing hose and fitting connections.\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 18-2588\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Chrysler Inboard Transmission Cooler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Hose Connection:\u003c\/strong\u003e 1 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Fitting:\u003c\/strong\u003e 9 inch x 2 inch, 3\/8 inch NPT inlet\/outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Flow Rate:\u003c\/strong\u003e 6 GPM maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Flow Rate:\u003c\/strong\u003e 25 GPM maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Bundle Length:\u003c\/strong\u003e 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length:\u003c\/strong\u003e 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Inlet and Outlet:\u003c\/strong\u003e 1 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Bare metal, ready for primer and factory paint finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.83 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eChrysler Inboard engines using a transmission oil cooler with a 1 1\/4 inch water hose connection.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2588 transmission oil cooler fit?\u003c\/strong\u003e The Sierra 18-2588 is built as a transmission oil cooler for Chrysler Inboard engines, using a 1 1\/4 inch water hose connection to tie into the existing raw water cooling circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the water hose connection?\u003c\/strong\u003e The 18-2588 uses a 1 1\/4 inch water hose connection on both the inlet and outlet.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow large is the cooler's tube bundle?\u003c\/strong\u003e The tube bundle measures 10 inches, with an overall unit length of 12 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size are the oil fittings?\u003c\/strong\u003e Oil fittings on the 18-2588 measure 9 inch x 2 inch with a 3\/8 inch NPT inlet and outlet connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum oil and water flow rating?\u003c\/strong\u003e The Sierra 18-2588 is rated for up to 6 GPM of oil flow and up to 25 GPM of water flow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2588 come painted?\u003c\/strong\u003e No, it ships bare metal and is ready for primer and factory paint finish, so it can be painted to match the engine before or after installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the cooler made from?\u003c\/strong\u003e The Sierra 18-2588 transmission oil cooler is constructed from stainless steel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2588 weigh?\u003c\/strong\u003e This transmission oil cooler weighs 2.83 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2588 a direct replacement for the factory Chrysler Inboard transmission cooler?\u003c\/strong\u003e Yes, the 18-2588 is designed to replace the Chrysler Inboard transmission oil cooler using the same 1 1\/4 inch water hose connection and NPT oil fitting sizing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order part number 18-2588?\u003c\/strong\u003e Ordering 18-2588 gets you the complete transmission oil cooler unit, ready for installation once primed and painted as needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this cooler be installed without additional plumbing modifications?\u003c\/strong\u003e Because the 18-2588 uses the standard 1 1\/4 inch water connection and 3\/8 inch NPT oil fitting, it is intended to connect using the same hose and fitting sizes as the original Chrysler Inboard transmission cooler.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988107505883,"sku":"SIE-18-2588","price":282.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__06593.1753840675.500.750.jpg?v=1785188585"},{"product_id":"sierra-18-2774-molded-hose-for-volvo-penta-aq290-aq290dp-replaces-oem-875847-includes-2-clamps","title":"Sierra Molded Hose 18-2774, Replaces 875847, for Volvo Penta AQ290, AQ290DP","description":"\u003cp\u003eThe Sierra 18-2774 is a molded cooling system hose engineered as a direct replacement for the OEM part on Volvo Penta AQ290 and AQ290DP sterndrive engines. Unlike straight-cut hose sold by the foot, this hose is molded to the exact bends and contours required by the original cooling system routing, so it seats correctly without kinking or restricting coolant flow. It is built to handle the heat, pressure, and constant exposure to raw water or coolant found in a marine engine bay, making it a durable option for restoring proper cooling system integrity.\u003c\/p\u003e\u003cp\u003eEach 18-2774 hose ships complete with two 18-7306 clamps, so the kit includes everything needed to remove the old, cracked, or collapsed hose and install the new one without sourcing separate hardware. This makes it a straightforward replacement for engine owners performing routine cooling system maintenance or repairing a failed hose before it leads to overheating or coolant loss.\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 18-2774\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Volvo Penta Engine Hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.58 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999313072\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e (2) 18-7306 Clamps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 875847\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta AQ290\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ290DP\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e875847\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2774 fit?\u003c\/strong\u003e The Sierra 18-2774 molded hose fits Volvo Penta AQ290 and AQ290DP sterndrive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part does 18-2774 replace?\u003c\/strong\u003e It replaces Volvo Penta OEM part number 875847.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre clamps included with the 18-2774 hose?\u003c\/strong\u003e Yes, the 18-2774 hose ships with two 18-7306 clamps, so no separate clamp purchase is needed for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2774 a straight length of hose or molded to shape?\u003c\/strong\u003e It is a molded hose, formed to the specific bends of the Volvo Penta AQ290 and AQ290DP cooling system rather than a straight-cut universal hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2774 hose weigh?\u003c\/strong\u003e The Sierra 18-2774 molded hose weighs 0.58 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat system does the 18-2774 hose belong to?\u003c\/strong\u003e The 18-2774 is part of the cooling system on applicable Volvo Penta I\/O engines, specifically the AQ290 and AQ290DP.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-7306 clamps included with the 18-2774 work on other hoses?\u003c\/strong\u003e The two 18-7306 clamps are included specifically with the Sierra 18-2774 molded hose kit for its installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2774 an OEM or aftermarket part?\u003c\/strong\u003e The Sierra 18-2774 is an aftermarket molded hose manufactured as a direct replacement for Volvo Penta OEM part 875847.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2774 hose?\u003c\/strong\u003e The UPC for the Sierra 18-2774 molded hose is 030999313072.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2774 fit other Volvo Penta AQ models besides AQ290?\u003c\/strong\u003e The Sierra 18-2774 is designated for the Volvo Penta AQ290 and AQ290DP; other AQ models use different Sierra hose part numbers.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988112847067,"sku":"SIE-18-2774","price":62.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2774_lg__41558.1558122699.500.750.jpg?v=1785329171"},{"product_id":"sierra-18-2775-marine-molded-hose-replaces-volvo-penta-875822-fits-aq-200-280-dp-stern-drive-units-includes-2-clamps","title":"Sierra 18-2775 Molded Hose for Volvo Penta Stern Drive, Replaces Volvo Penta 87582","description":"\u003cp\u003eThe Sierra 18-2775 Molded Hose is a marine-grade replacement hose engineered for Volvo Penta stern drive applications. Molded from synthetic rubber in white, it is built to meet or exceed the quality of the original equipment part it replaces, giving boat owners a dependable option for restoring proper cooling or fluid-routing function in the stern drive system. The hose is manufactured to a fit-specific shape rather than a generic cut length, so it seats correctly against factory mounting points without the fabrication or clamping workarounds that generic hose stock requires.\u003c\/p\u003e\u003cp\u003eThis molded construction resists the heat, oil exposure, and constant flex found in the stern drive environment, making it a straightforward swap for boaters doing routine maintenance or replacing a cracked, hardened, or leaking original hose. Because fit is application-specific, buyers should confirm the part number against their stern drive before ordering. The Sierra 18-2775 is intended as a direct interchange for the original Volvo Penta hose and select aftermarket equivalents, and it ships as a single hose unit.\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 18-2775\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Synthetic 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 0.56 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Uses:\u003c\/strong\u003e Marine activities, water sports, boating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Volvo Penta stern drive applications; verify against your stern drive's original hose part number before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMallory 9-44004\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 87582\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 875822\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2775 Molded Hose used for?\u003c\/strong\u003e The Sierra 18-2775 is a molded rubber hose designed for Volvo Penta stern drive applications, used to replace a worn, cracked, or leaking factory hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2775 a direct fit for Volvo Penta stern drives?\u003c\/strong\u003e Yes, the 18-2775 is molded to a fit-specific shape for Volvo Penta stern drive applications, so buyers should confirm the part number against their original hose before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2775 hose made from?\u003c\/strong\u003e It is made from synthetic rubber, finished in white, to withstand the heat and flex conditions found in a stern drive installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2775 hose weigh?\u003c\/strong\u003e The Sierra 18-2775 Molded Hose weighs 0.56 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM or aftermarket parts does the 18-2775 replace?\u003c\/strong\u003e The 18-2775 is designed to be interchangeable with Mallory 9-44004 and Volvo Penta 87582 (also referenced as 875822).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-2775 a genuine Volvo Penta part or aftermarket?\u003c\/strong\u003e It is a Sierra aftermarket hose manufactured to meet or exceed the quality of the original Volvo Penta equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in one Sierra 18-2775 package?\u003c\/strong\u003e One package of the Sierra 18-2775 contains a single molded hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2775 fit any stern drive hose application?\u003c\/strong\u003e No, this hose is fit-specific to Volvo Penta stern drive applications, so the exact part number should be checked against the original hose before purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-2775 be used for engine cooling hose replacement?\u003c\/strong\u003e The 18-2775 is a molded hose for the Volvo Penta stern drive system and is intended as a like-for-like replacement for the original hose in that application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2775 hose?\u003c\/strong\u003e The Sierra 18-2775 Molded Hose is white.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113109211,"sku":"SIE-18-2775","price":53.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2775_lg__98993.1558122749.500.750.jpg?v=1785188004"},{"product_id":"sierra-18-2777-water-hose-connection-replaces-volvo-penta-854031-fits-aq120b-aq290a-stern-drive","title":"Sierra 18-2777 Water Hose Connection, Replaces 854031, for Volvo Penta AQ151\/165\/170\/171 and BB165\/170 Stern Drive Engines","description":"\u003cp\u003eThe Sierra 18-2777 Water Hose Connection is a direct-fit replacement cooling system component for Volvo Penta stern drive engines. It connects the raw water hose to the engine cooling circuit, sealing the joint so cooling water is delivered without leaks under running pressure. Built from metal in a white finish, it is engineered to meet or exceed the performance of the original equipment part it replaces and to hold up in continuous marine service.\u003c\/p\u003e\u003cp\u003eThis water hose connection is a straightforward like-for-like swap for the original Volvo Penta fitting bearing part number 854031, making it a simple maintenance item when the factory connection has corroded, cracked, or is leaking at the hose joint. It is sized and shaped to match the original mounting points on applicable Volvo Penta AQ and BB series stern drive engines, so no modification is needed for installation.\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 18-2777\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Hose Connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 7 inches L x 6 inches W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.21 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999313102\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 854031\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Volvo Penta AQ151B, AQ151C, AQ171A, AQ17C, AQ165A, AQ170A, AQ170B, AQ170C, BB165A, BB170A, BB170B, BB170C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolvo Penta AQ151B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ151C\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ171A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ17C\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ165A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ170A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ170B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ170C\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB165A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB170A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB170B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB170C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e854031\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2777 used for?\u003c\/strong\u003e The Sierra 18-2777 is a water hose connection that joins the raw water hose to the cooling system on applicable Volvo Penta stern drive engines, sealing the joint against leaks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-2777 replace?\u003c\/strong\u003e It replaces Volvo Penta part number 854031, so it is a direct match for that original fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the Sierra 18-2777 designed to fit?\u003c\/strong\u003e It fits Volvo Penta AQ151B, AQ151C, AQ171A, AQ17C, AQ165A, AQ170A, AQ170B, AQ170C, BB165A, BB170A, BB170B, and BB170C stern drive engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2777 water hose connection made from?\u003c\/strong\u003e It is made from metal with a white finish, built for continuous exposure to marine cooling water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Sierra 18-2777?\u003c\/strong\u003e The part measures 7 inches long by 6 inches wide.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2777 weigh?\u003c\/strong\u003e It weighs 0.21 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2777 a genuine OEM part or aftermarket?\u003c\/strong\u003e It is a Sierra-manufactured aftermarket replacement engineered to meet or exceed the performance of the original Volvo Penta water hose connection it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2777 come with a warranty?\u003c\/strong\u003e Yes, Sierra parts including the 18-2777 water hose connection are covered under Sierra's customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2777?\u003c\/strong\u003e The order includes one Sierra 18-2777 water hose connection unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2777 fit engines outside the listed Volvo Penta AQ and BB series?\u003c\/strong\u003e No, the Sierra 18-2777 is designed specifically for the listed Volvo Penta AQ151B, AQ151C, AQ171A, AQ17C, AQ165A, AQ170A, AQ170B, AQ170C, BB165A, BB170A, BB170B, and BB170C models, so fitment outside that list is not confirmed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my water hose connection needs replacing?\u003c\/strong\u003e Cracking, corrosion, or a leak at the raw water hose joint on the applicable Volvo Penta engine is a sign the connection, such as the Sierra 18-2777, needs replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113141979,"sku":"SIE-18-2777","price":47.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2777_lg__40542.1558122882.500.750.jpg?v=1785188366"},{"product_id":"water-pocket-cover-assembly-18-3219-for-mercruiser-alpha-one-merc-i-drives-replaces-42724a3","title":"Sierra Water Pocket Cover Assembly 18-3219, Replaces MerCruiser 42724A3, Alpha One\/Gen II","description":"\u003cp\u003eThe Sierra 18-3219 Water Pocket Cover Assembly is a direct-fit replacement for the drive shaft housing water pocket cover on MerCruiser Alpha One\/Gen II sterndrives. This part is sold as a complete assembly rather than a bare cover, so it comes ready to install without hunting down individual hardware. The assembly bundles the water pocket cover itself along with its mounting screw, gasket, water pump housing bushing, and water tube, giving you every wear component in this section of the drive shaft housing in one package.\u003c\/p\u003e\u003cp\u003eThe water pocket cover directs raw water flow through the drive shaft housing on its way to the water pump and engine cooling system, so a cracked, corroded, or leaking cover can lead to cooling flow problems or water pump housing leaks. Because Sierra ships this as a full assembly, you are also replacing the gasket and bushing at the same time, which is the recommended practice whenever this cover is opened up, since these seal points are the most common source of a repeat leak if only the cover is swapped.\u003c\/p\u003e\u003cp\u003eThis part is cataloged under MerCruiser Alpha One\/Gen II drive shaft housing components and cross-references to MerCruiser OEM number 42724A3. It is intended for use on Mercruiser I and Alpha I stern drives.\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 18-3219\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 42724A3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold As:\u003c\/strong\u003e Assembly (includes water pocket cover, mounting screw, gasket, water pump housing bushing, and water tube)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.29 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282243852\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e MerCruiser Alpha One\/Gen II drive shaft housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser Alpha One\/Gen II drive shaft housing components\u003c\/li\u003e\n\u003cli\u003eMerCruiser I and Alpha I stern drives\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e42724A3\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3219 water pocket cover assembly include?\u003c\/strong\u003e The 18-3219 assembly includes the water pocket cover, its mounting screw, a gasket, a water pump housing bushing, and a water tube, so every wear component in that section of the drive shaft housing is replaced in one package rather than sold as a bare cover alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat MerCruiser OEM number does part 18-3219 replace?\u003c\/strong\u003e Sierra 18-3219 cross-references to MerCruiser OEM number 42724A3.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat stern drives does the 18-3219 water pocket cover fit?\u003c\/strong\u003e This assembly is cataloged for MerCruiser Alpha One\/Gen II drive shaft housings and fits Mercruiser I and Alpha I stern drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-3219 the same as buying just a water tube?\u003c\/strong\u003e No, 18-3219 is the water pocket cover assembly for the drive shaft housing; the water tube is one of the components included in this assembly, but the water tube alone is also available as a separate Sierra part number if the cover itself does not need replacing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to replace the gasket separately when installing this cover?\u003c\/strong\u003e No, the Sierra 18-3219 assembly already includes the gasket along with the water pocket cover, mounting screw, bushing, and water tube, so no separate gasket purchase is needed for this repair.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-3219 water pocket cover assembly?\u003c\/strong\u003e The assembly measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3219 water pocket cover assembly weigh?\u003c\/strong\u003e It weighs 0.29 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the Sierra 18-3219 water pocket cover have?\u003c\/strong\u003e The cover has a machined finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3219 a genuine Sierra part or aftermarket equivalent?\u003c\/strong\u003e The 18-3219 is a Sierra-branded replacement part manufactured to meet or exceed the specifications of the original MerCruiser 42724A3 water pocket cover it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy replace the bushing and screw along with the cover instead of just the cover itself?\u003c\/strong\u003e Sierra sells 18-3219 as a full assembly with the mounting screw, gasket, and water pump housing bushing included because these are the components most likely to need renewal at the same time as the water pocket cover, reducing the chance of a repeat leak at the drive shaft housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat system does the water pocket cover on part 18-3219 serve?\u003c\/strong\u003e The water pocket cover on the 18-3219 assembly is part of the raw water flow path through the MerCruiser Alpha One\/Gen II drive shaft housing, directing cooling water toward the water pump.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988142043355,"sku":"SIE-18-3219","price":34.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3219_lg__27811.1558124349.500.750.jpg?v=1785188184"},{"product_id":"sierra-18-3566-tell-tale-hose-elbow-replaces-oem-331894-fits-johnson-evinrude-outboards","title":"Sierra 18-3566 Tell Tale Hose Elbow, Replaces 331894, for Johnson and Evinrude Outboards","description":"\u003cp\u003eThe Sierra 18-3566 Tell Tale Hose Elbow is a small cooling-system fitting that connects the tell tale (pee stream) indicator hose to the outboard's water pump discharge outlet, giving the operator a visible stream of water that confirms the cooling system is circulating properly while the engine runs. It is molded from durable plastic with a machined finish and features a 3\/8 inch hose barb on one end to accept the tell tale hose and a 1\/8 inch NPT threaded connection on the other end for installation into the powerhead or pump housing fitting.\u003c\/p\u003e\u003cp\u003eThis elbow is designed for Johnson and Evinrude outboard applications and is a direct cross-reference for the OEM part it replaces, so it installs and functions the same as the original fitting. Its compact size and simple two-connection design make it an easy, low-cost replacement when the original elbow cracks, clogs, or breaks from age and vibration.\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 18-3566\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Barb Size:\u003c\/strong\u003e 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/8 inch NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e NPT\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\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Elbow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Johnson and Evinrude outboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits Johnson and Evinrude outboard applications that use a tell tale hose elbow fitting.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e331894\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3566 Tell Tale Hose Elbow do?\u003c\/strong\u003e It connects the tell tale indicator hose to the outboard's water pump discharge fitting, letting the operator see a stream of water while the engine runs to confirm the cooling system is pumping properly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboards is the 18-3566 elbow designed for?\u003c\/strong\u003e The 18-3566 elbow is designed for use in Johnson and Evinrude outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-3566 replace?\u003c\/strong\u003e Sierra part 18-3566 replaces Johnson\/Evinrude OEM number 331894.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size hose barb does this elbow have?\u003c\/strong\u003e The 18-3566 elbow has a 3\/8 inch hose barb for connecting the tell tale hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size connects the elbow to the powerhead?\u003c\/strong\u003e It threads in with a 1\/8 inch NPT connection on the fitting end opposite the hose barb.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3566 tell tale hose elbow made from?\u003c\/strong\u003e It is molded from plastic with a machined finish and a white color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this part weigh?\u003c\/strong\u003e The Sierra 18-3566 Tell Tale Hose Elbow weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-3566 elbow?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3566 a genuine equivalent to the original equipment part?\u003c\/strong\u003e Yes, the 18-3566 is built to meet or exceed the original equipment part it replaces, part number 331894.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this elbow?\u003c\/strong\u003e Replace the 18-3566 tell tale hose elbow if the original fitting cracks, clogs, or breaks, causing a weak or absent tell tale water stream.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3566?\u003c\/strong\u003e The order includes one Sierra 18-3566 Tell Tale Hose Elbow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3566 elbow require any additional parts to install?\u003c\/strong\u003e No additional parts are required; the 3\/8 inch barb end accepts the existing tell tale hose and the 1\/8 inch NPT end threads directly into the mating fitting.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988153643227,"sku":"SIE-18-3566","price":6.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3566_lg__34842.1558124448.500.750.jpg?v=1785188941"},{"product_id":"sierra-18-3601-water-intake-hose-5-8-x-13-7-8-for-mercruiser-sterndrive-gimbal-housing-water-feed-hose-replaces-32-32461-32-32461a1","title":"Sierra 18-3601 Gimbal Housing Water Feed Hose, Replaces Mercruiser 32-32461, 32-32461A1 - 5\/8 in. X 13-7\/8 in.","description":"\u003cp\u003eThe Sierra 18-3601 is a Gimbal Housing Water Feed Hose built for Mercruiser I\/O cooling systems where the thermostat housing connects to the port exhaust manifold. It is molded from rubber to handle continuous exposure to raw water and engine heat while routing coolant flow through the gimbal housing water feed circuit. The hose measures 5\/8 inch in diameter and 13-7\/8 inches in length, matching the original equipment dimensions so it installs as a direct fit without modification. Its white rubber construction resists the cracking, hardening, and leaking that commonly develop in aging OEM hoses from prolonged heat cycling and saltwater or freshwater exposure. As a Sierra replacement part, it is manufactured to meet or exceed the performance of the original equipment hose it replaces. This hose is a straightforward wear-item swap for boat owners and marine technicians performing cooling system maintenance, and it directly replaces Mercruiser part numbers 32-32461 and 32-32461A1. Keeping this hose in good condition is important, since a cracked or split water feed hose can allow air into the cooling system or let coolant escape, leading to overheating.\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 18-3601\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Gimbal Housing Water Feed Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 5\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 13-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 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 0.38 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-32461, 32-32461A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e32-32461\u003c\/li\u003e\n\u003cli\u003e32-32461A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3601 hose connect?\u003c\/strong\u003e The Sierra 18-3601 is a gimbal housing water feed hose that routes from the thermostat housing to the port exhaust manifold on applicable Mercruiser I\/O engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the 18-3601 hose?\u003c\/strong\u003e It measures 5\/8 inch in diameter and 13-7\/8 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-3601 replace?\u003c\/strong\u003e It replaces Mercruiser part numbers 32-32461 and 32-32461A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3601 a direct OEM replacement?\u003c\/strong\u003e Yes, the 18-3601 is manufactured to meet or exceed the specifications of the original Mercruiser 32-32461 and 32-32461A1 hoses it replaces, so it installs in place of the OEM part without modification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3601 hose made from?\u003c\/strong\u003e The 18-3601 gimbal housing water feed hose is made from white rubber designed to withstand engine heat and continuous water exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3601 hose weigh?\u003c\/strong\u003e The Sierra 18-3601 weighs 0.38 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my water feed hose needs replacing?\u003c\/strong\u003e Signs that the 18-3601 or a similar gimbal housing water feed hose needs replacement include visible cracking, hardening, soft spots, or coolant leaks around the thermostat housing to exhaust manifold connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3601 come with hose clamps?\u003c\/strong\u003e The 18-3601 listing covers the hose itself; clamps are not specified as included components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or aftermarket?\u003c\/strong\u003e The 18-3601 is a genuine Sierra marine part manufactured to OEM-equivalent standards as a replacement for Mercruiser 32-32461 and 32-32461A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere on the engine does the 18-3601 hose install?\u003c\/strong\u003e It runs from the thermostat housing to the port side exhaust manifold on applicable Mercruiser I\/O cooling systems.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988154626267,"sku":"SIE-18-3601","price":90.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3601_lg__41516.1558125767.500.750.jpg?v=1785187988"},{"product_id":"sierra-18-3603-water-intake-hose-for-mercruiser-mr-alpha-one-gen-ii-sterndrives-replaces-32-8m0062309-13-7-8-in-x-3-4-in-i-d","title":"Sierra Water Intake Hose 18-3603, Replaces Mercruiser 32-43437, White","description":"\u003cp\u003eThe Sierra 18-3603 Water Intake Hose is a white marine-grade replacement hose engineered for boat engine cooling water intake systems. Built to meet or exceed original equipment quality, this hose is designed as a direct replacement for the corresponding Mercruiser water intake hose, giving boat owners and technicians a reliable option when the factory hose has degraded, cracked, or failed. Water intake hoses like this one route raw water from the intake source to the engine's cooling system, so material integrity and a secure fit are essential to prevent leaks, airlock, or overheating.\u003c\/p\u003e\u003cp\u003eConstructed from durable plastic material, the Sierra 18-3603 is built to hold up in the demanding marine environment where hoses are exposed to constant moisture, vibration, and temperature changes. It ships as a single unit (1 count) ready for installation. Because water intake hoses are fit-specific, it is important to confirm this part number matches the hose being replaced before ordering.\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 18-3603\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Water Intake Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.47 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282124731\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Hoses\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFit specific; confirm part number 18-3603 matches your existing hose before purchasing.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 32-43437\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-3603 Water Intake Hose used for?\u003c\/strong\u003e It routes raw water into the engine's cooling water intake system on boats, replacing the original hose when it cracks, hardens, or fails.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-3603 replace?\u003c\/strong\u003e The Sierra 18-3603 corresponds to Mercruiser part number 32-43437.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is this hose?\u003c\/strong\u003e The Sierra 18-3603 Water Intake Hose is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-3603 hose made from?\u003c\/strong\u003e It is made from plastic, chosen for durability in continuous marine water-intake use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3603 weigh?\u003c\/strong\u003e This water intake hose weighs 0.47 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in the package?\u003c\/strong\u003e The Sierra 18-3603 ships as a single unit, one hose per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3603 a genuine Mercruiser part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-brand aftermarket replacement hose built to meet or exceed the quality of the original equipment part it replaces, corresponding to Mercruiser 32-43437.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-3603 fit any boat engine?\u003c\/strong\u003e No. This hose is fit specific, so the part number should be checked against the original hose before ordering to ensure proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3603?\u003c\/strong\u003e The UPC for the Sierra 18-3603 Water Intake Hose is 808282124731.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-3603 different from other Sierra water hoses?\u003c\/strong\u003e The 18-3603 is specifically cross-referenced to Mercruiser 32-43437, distinguishing it from other Sierra hose part numbers that replace different Mercruiser hoses.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988154757339,"sku":"SIE-18-3603","price":32.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3603_lg__64439.1558125888.500.750.jpg?v=1785188874"},{"product_id":"molded-marine-hose-for-mercruiser-5-0l-5-7l-replaces-32-73796-thermostat-cover-to-exhaust-elbow-sierra-18-3602","title":"Sierra 18-3602 Water Intake Hose for Mercruiser MR, Alpha One and Gen II Drives","description":"\u003cp\u003eThe Sierra 18-3602 is a water intake hose engineered as a direct replacement for Mercruiser MR, Alpha One, and Gen II sterndrive applications. This hose carries raw water from the intake to the engine's cooling circuit, a critical connection point where cracking, hardening, or collapse can quickly lead to overheating. The 18-3602 measures 13 7\/8 inches in length with a 3\/4 inch outside diameter, sized to match factory routing without modification, and its universal fit design allows it to be trimmed or positioned to suit the specific installation.\u003c\/p\u003e\u003cp\u003eBuilt from glass-reinforced hose material in white, it is designed to withstand the flexing, vibration, and constant exposure to raw water and engine-bay heat that marine intake hoses see in service. Sierra manufactures this hose to meet or exceed the specifications of the original equipment part it replaces, and it is intended as a straightforward swap for aging, cracked, or collapsed intake hoses on covered drive applications.\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 18-3602\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Mercruiser Hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 13 7\/8 inches (3524 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 3\/4 inch (191 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e MR, Alpha One and Gen II drives\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282258818\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.47 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser MR sterndrive\u003c\/li\u003e\n\u003cli\u003eMercruiser Alpha One sterndrive\u003c\/li\u003e\n\u003cli\u003eMercruiser Alpha Gen II sterndrive\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-41725-33\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat drives does the Sierra 18-3602 water intake hose fit?\u003c\/strong\u003e The 18-3602 is designed to fit Mercruiser MR, Alpha One, and Gen II sterndrive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is this intake hose?\u003c\/strong\u003e It measures 13 7\/8 inches (3524 mm) in length with a 3\/4 inch (191 mm) outside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM Mercruiser part number does the 18-3602 cross to?\u003c\/strong\u003e The Sierra 18-3602 corresponds to Mercruiser part number 32-41725-33.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the hose made from?\u003c\/strong\u003e The 18-3602 is made from glass-reinforced hose material in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-3602 water intake hose weigh?\u003c\/strong\u003e It weighs 0.47 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a universal-fit hose or a fixed-length hose?\u003c\/strong\u003e The 18-3602 is a universal-fit hose, meaning it can be positioned or trimmed to suit the specific installation on MR, Alpha One, and Gen II drives.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3602 equivalent to the OEM Mercruiser part?\u003c\/strong\u003e Yes, Sierra manufactures the 18-3602 to meet or exceed the specifications of the original Mercruiser equipment part it replaces (32-41725-33).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace my water intake hose?\u003c\/strong\u003e A water intake hose like the 18-3602 should be replaced when it shows cracking, hardening, or collapse, since a failing intake hose can restrict raw water flow and lead to engine overheating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-3602 hose?\u003c\/strong\u003e The 18-3602 is white in color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-3602 include clamps or fittings?\u003c\/strong\u003e The 18-3602 is the water intake hose itself; clamps and fittings are not called out as included components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWho makes the 18-3602 hose?\u003c\/strong\u003e The 18-3602 water intake hose is manufactured by Sierra, a supplier of marine engine parts to OEM engine manufacturers and boat builders.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988155052251,"sku":"SIE-18-3602","price":13.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-3602__87940.1737831198.500.750.jpg?v=1785188884"},{"product_id":"sierra-18-4258-marine-pipe-plug-3-4-in-thread-replaces-mercruiser-22-33198a1-crusader-113186-mallory-9-41205","title":"Sierra 18-4258 Pipe Plug, 3\/4 Inch Thread, Steel, Replaces Mercruiser 22-33198A1","description":"\u003cp\u003eThe Sierra 18-4258 is a steel pipe plug with a 3\/4 inch thread, built to seal unused ports on marine exhaust manifolds and related engine components. It is designed for use with the Sierra 18-1949 manifold spacer and is a common replacement item for boat owners servicing exhaust manifold assemblies. The plug is machined from steel and finished in silver, matching the quality and dimensions of the original equipment part it replaces. Because it threads directly into standard 3\/4 inch NPT-style ports, it is a straightforward swap during manifold service, riser replacement, or general maintenance work where a factory pipe plug has corroded, stripped, or gone missing.\u003c\/p\u003e\u003cp\u003eSierra manufactures this plug to meet or exceed original equipment specifications, so fit, thread engagement, and sealing performance match what the factory part delivers. It is sold as a single item (one plug) and ships with the UPC 030999875709 for easy identification at checkout or in parts lookup systems.\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 18-4258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999875709\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Manifold Spacer:\u003c\/strong\u003e 18-1949\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eDesigned for use with the Sierra 18-1949 manifold spacer.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCrusader 113186\u003c\/li\u003e\n\u003cli\u003eGLM 21892\u003c\/li\u003e\n\u003cli\u003eMallory 9-41205\u003c\/li\u003e\n\u003cli\u003eMercruiser 22-33198A1\u003c\/li\u003e\n\u003cli\u003eMercruiser 22-41622\u003c\/li\u003e\n\u003cli\u003eMercruiser 22-46754\u003c\/li\u003e\n\u003cli\u003eMercruiser 22-33198\u003c\/li\u003e\n\u003cli\u003eOsco 1016012\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the Sierra 18-4258 pipe plug have?\u003c\/strong\u003e The Sierra 18-4258 pipe plug has a 3\/4 inch thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4258 a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-4258 is a genuine Sierra part, manufactured by Sierra to meet or exceed the original equipment specifications of the parts it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does the Sierra 18-4258 pipe plug cross-reference to?\u003c\/strong\u003e It is interchangeable with Crusader 113186, GLM 21892, Mallory 9-41205, Mercruiser 22-33198A1, 22-41622, 22-46754, and 22-33198, as well as Osco 1016012.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-4258 made of?\u003c\/strong\u003e Steel is the material used for the Sierra 18-4258 pipe plug, finished in silver.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4258 pipe plug weigh?\u003c\/strong\u003e The Sierra 18-4258 pipe plug weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other part is the 18-4258 used with?\u003c\/strong\u003e The 18-4258 pipe plug is designed for use with the Sierra 18-1949 manifold spacer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many plugs come in one order of the 18-4258?\u003c\/strong\u003e One order of the Sierra 18-4258 includes a single pipe plug (quantity of 1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-4258 replace a Mercruiser pipe plug?\u003c\/strong\u003e Yes, the Sierra 18-4258 replaces Mercruiser pipe plugs 22-33198A1, 22-41622, 22-46754, and 22-33198.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-4258 pipe plug?\u003c\/strong\u003e The UPC for the Sierra 18-4258 pipe plug is 030999875709.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-4258 be used to replace a Mallory pipe plug?\u003c\/strong\u003e Yes, the Sierra 18-4258 is interchangeable with Mallory part number 9-41205.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988172910811,"sku":"SIE-18-4258","price":4.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4258_lg__81665.1661520596.500.750.jpg?v=1785188604"},{"product_id":"sierra-18-4263-brass-pipe-plug-1-8in-27-npt-replaces-mercruiser-22-841908-chrysler-f700633","title":"Sierra 18-4263 Brass Pipe Plug, 1\/8 inch NPT, Replaces Mercury 22-328021","description":"\u003cp\u003eThe Sierra 18-4263 is a brass pipe plug sized for 1\/8 inch - 27 NPT threads, used to seal unused ports on marine exhaust manifolds, risers, and other threaded fittings. It is machined from brass for corrosion resistance in a marine engine environment and is a small, single-piece hardware item meant to be installed with pipe sealant rather than thread tape alone, since NPT tapered threads rely on a sealant such as Teflon-rated pipe dope to achieve a leak-free seal.\u003c\/p\u003e\u003cp\u003eThis plug is commonly used as a service and replacement part for engine and exhaust hardware where a factory plug has corroded, stripped, or been removed for inspection. It is also supplied as one of the included components in certain riser and manifold kits, alongside other Sierra parts, for installers who need a matching plug on hand during a rebuild. Because it is a simple sealing plug rather than a machine-specific part, it is used across a range of Chrysler, Mercury, and Mercruiser marine engine applications that call for a 1\/8 inch NPT brass plug.\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 18-4263\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Pipe Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1\/8 inch - 27 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282259129\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-References:\u003c\/strong\u003e FI5810151, F700633, 22-328022, 22-328021, GLM 21893, 22-841908, 22-32802, 22-30139\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eUniversal 1\/8 inch - 27 NPT threaded port application; no engine-specific fitment is specified.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChrysler FI5810151\u003c\/li\u003e\n\u003cli\u003eChrysler F700633\u003c\/li\u003e\n\u003cli\u003e22-328022\u003c\/li\u003e\n\u003cli\u003e22-328021\u003c\/li\u003e\n\u003cli\u003eGLM 21893\u003c\/li\u003e\n\u003cli\u003eMercruiser 22-841908\u003c\/li\u003e\n\u003cli\u003e22-32802\u003c\/li\u003e\n\u003cli\u003eMercury 22-30139\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the Sierra 18-4263 pipe plug use?\u003c\/strong\u003e The Sierra 18-4263 has a 1\/8 inch - 27 NPT tapered pipe thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-4263 pipe plug made from?\u003c\/strong\u003e It is machined from brass, chosen for its corrosion resistance in marine exhaust and engine hardware applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need sealant to install the 18-4263 plug?\u003c\/strong\u003e Yes, a pipe sealant with Teflon is recommended on the threads of the 18-4263 to ensure a leak-free seal, since NPT tapered threads depend on sealant rather than thread tape alone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4263 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-4263 is a Sierra aftermarket replacement plug manufactured to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-4263 cross-reference to?\u003c\/strong\u003e It is interchangeable with Chrysler FI5810151 and F700633, GLM 21893, Mercruiser 22-841908 and 22-32802, Mercury 22-30139, and 22-328021 \/ 22-328022.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4263 pipe plug weigh?\u003c\/strong\u003e The Sierra 18-4263 weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 18-4263 plug?\u003c\/strong\u003e It measures 0.39 x 0.39 x 0.39 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many plugs come in a package?\u003c\/strong\u003e Each package of the Sierra 18-4263 includes one pipe plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat finish does the 18-4263 plug have?\u003c\/strong\u003e The plug has a machined brass finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-4263 plug included with any other Sierra parts?\u003c\/strong\u003e Yes, the 18-4263 is supplied as one of the plugs included with certain Sierra exhaust riser and manifold kits, alongside parts such as 18-0897 and 18-4258.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-4263 be reused after removal?\u003c\/strong\u003e Because NPT pipe plugs rely on sealant for a leak-free fit, it is best practice to apply fresh pipe sealant to the 18-4263 each time it is reinstalled rather than reusing old sealant.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988178383067,"sku":"SIE-18-4263","price":4.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sie-18-4263_large__61139.1558126642.500.750.jpg?v=1785187990"},{"product_id":"sierra-18-70925-molded-cooling-hose-replaces-mercruiser-32-73795-fits-5-0l-5-7l-port-thermostat-housing-to-port-manifold","title":"Sierra Molded Cooling Hose 18-70925, 12 3\/4 Inch, Cross-References Mercruiser 32-160211","description":"\u003cp\u003eThe Sierra 18-70925 is a molded cooling system hose built for fresh water or raw water cooling systems on board marine engines. It is molded to maintain full water flow through its bend, which also makes installation straightforward since the hose is pre-shaped to route correctly without kinking. Sierra molded hoses are engineered to OEM quality standards, so fit, form, and function match what the original equipment called for.\u003c\/p\u003e\u003cp\u003eConstruction is EPDM tubing with a synthetic knit reinforcement layer, a combination chosen for resistance to heat, salt water, and the flexing that occurs during engine operation. The hose measures 12 3\/4 inches and is finished in white. It carries a listed fit type of universal fit within its application category, and it cross-references directly to Mercruiser part number 32-160211, making it a straightforward replacement when that number is called for on a parts diagram or old hose.\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 18-70925\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Cooling Hose\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 EPDM with synthetic knit reinforcement\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 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282145910\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCross-references to Mercruiser cooling system applications using part number 32-160211.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 32-160211\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-70925 hose used for?\u003c\/strong\u003e It is a molded cooling system hose for fresh water or raw water cooling on marine engines, molded to keep full water flow through its bend.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat length is the 18-70925 hose?\u003c\/strong\u003e The Sierra 18-70925 molded hose measures 12 3\/4 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70925 replace a Mercruiser part number?\u003c\/strong\u003e Yes, Sierra 18-70925 cross-references to Mercruiser part number 32-160211.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the hose made from?\u003c\/strong\u003e Sierra 18-70925 is built from EPDM tubing with a synthetic knit reinforcement layer for durability under heat and flexing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70925 hose?\u003c\/strong\u003e This molded hose is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70925 hose weigh?\u003c\/strong\u003e The Sierra 18-70925 molded hose weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70925 hose OEM quality?\u003c\/strong\u003e Sierra designs its molded hoses, including 18-70925, to OEM quality standards so that fit, form, and function match the original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose fit any boat cooling system?\u003c\/strong\u003e The 18-70925 is listed as a universal fit hose within the Mercruiser hose application it cross-references, and its molded shape is designed for ease of installation in that bend location.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70925 hose easy to install?\u003c\/strong\u003e Yes, because it is molded to the correct bend shape rather than a straight hose that needs to be forced into position, the 18-70925 installs into its routing without kinking.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the package with 18-70925?\u003c\/strong\u003e The package contains one Sierra 18-70925 molded hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-70925 an aftermarket or genuine Sierra part?\u003c\/strong\u003e The 18-70925 is a genuine Sierra part, manufactured by Sierra to OEM quality standards and sold under the Sierra brand.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988361064667,"sku":"SIE-18-70925","price":29.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70925_lg__45825.1558129873.500.750.jpg?v=1785188256"},{"product_id":"sierra-18-70704-molded-cooling-hose-1-id-replaces-mercruiser-32-48131-32-48132-fits-230-260-mie-inboard-engines","title":"Sierra Molded Cooling Hose 18-70704, EPDM, for MerCruiser I\/O, Replaces OEM 32-89653","description":"\u003cp\u003eThe Sierra 18-70704 is a molded cooling system hose built for MerCruiser I\/O engines. Rather than a straight, flexible tube that has to be forced into shape, this hose is molded to its final bend so it delivers full, unrestricted water flow through the exact curve required by the cooling system, while also making installation straightforward since the shape is already correct before it goes on the boat. The hose is constructed from EPDM tubing with a synthetic knit reinforcement layer, a combination chosen for resistance to the heat, oil exposure, and constant flex that raw water and fresh water cooling hoses see in a marine engine bay. Sierra builds this hose to OEM quality standards so that fit, form, and function match the original equipment it is designed to replace, including cross reference to OEM part 32-89653. It is finished in white EPDM and supplied as a single hose weighing 0.22 pounds. Boat owners and marine techs use this hose when servicing or rebuilding the cooling system on a MerCruiser I\/O engine and want a direct, correctly shaped replacement rather than a universal straight hose that has to be trimmed and bent by hand.\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 18-70704\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e MerCruiser I\/O Cooling System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM with synthetic knit reinforcement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-89653\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.22 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Length:\u003c\/strong\u003e 6.4 centimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Height:\u003c\/strong\u003e 13.5 centimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Width:\u003c\/strong\u003e 11 centimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999568052\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for MerCruiser I\/O engine cooling systems.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-89653\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-70704 hose fit?\u003c\/strong\u003e The Sierra 18-70704 molded hose is designed for MerCruiser I\/O engine cooling systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this hose replace?\u003c\/strong\u003e Sierra 18-70704 cross references to OEM part number 32-89653.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70704 hose made from?\u003c\/strong\u003e It is made from EPDM tubing with a synthetic knit reinforcement layer, chosen for resistance to heat, oil exposure, and repeated flexing in a marine cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose pre-shaped or a straight piece I have to bend?\u003c\/strong\u003e The 18-70704 is molded to its final bend shape, so it provides full water flow through the required curve without needing to be manually formed or clamped into position.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70704 hose?\u003c\/strong\u003e This molded cooling hose is white EPDM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70704 hose weigh?\u003c\/strong\u003e The Sierra 18-70704 weighs 0.22 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70704 an OEM-quality replacement?\u003c\/strong\u003e Yes, Sierra manufactures the 18-70704 to OEM quality standards so it matches the fit, form, and function of the original hose it replaces, including OEM number 32-89653.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in the package?\u003c\/strong\u003e The 18-70704 is sold as a single molded hose (unit count of 1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used for both raw water and fresh water cooling circuits?\u003c\/strong\u003e The 18-70704 is a cooling system hose intended for MerCruiser I\/O engines and is built to handle the flow demands of the engine's cooling system plumbing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the 18-70704?\u003c\/strong\u003e The Sierra 18-70704 ships in a package measuring 6.4 centimeters long, 13.5 centimeters high, and 11 centimeters wide.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70704 include any hose clamps or fittings?\u003c\/strong\u003e The 18-70704 is supplied as the molded hose itself; no additional components are listed with it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy choose a molded hose instead of a universal flexible hose?\u003c\/strong\u003e A molded hose like the 18-70704 is shaped to the exact bend needed in the cooling system, which maintains full water flow and avoids the kinking or restriction that can occur when a straight universal hose is bent into place.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988361130203,"sku":"SIE-18-70704","price":16.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70704_lg__21412.1558129017.500.750.jpg?v=1785188047"},{"product_id":"sierra-18-70930-molded-cooling-hose-replaces-mercruiser-32-871171-thermostat-cover-to-starboard-manifold-fits-4-3l-5-0l-5-7l","title":"Sierra Molded Cooling System Hose 18-70930, Replaces Mercruiser 32-52481","description":"\u003cp\u003eThe Sierra 18-70930 is a molded cooling system hose engineered for fresh water or raw water cooling systems on inboard and sterndrive boat engines. Unlike straight-cut hose that must be forced into shape, this hose is molded to hold its bend from the factory, so it maintains full, unrestricted water flow through the curve while making installation straightforward. It is built to OEM specifications, meaning fit, form, and function match what the engine was designed around, so there is no guesswork when replacing a cracked, collapsed, or hardened original hose.\u003c\/p\u003e\u003cp\u003eConstruction is EPDM tubing reinforced with a synthetic knit layer, a combination chosen for marine cooling systems because it resists heat cycling, ozone, and prolonged exposure to fresh or raw water without becoming brittle or swelling. The hose is finished in white. As a direct cross-reference to Mercruiser part number 32-52481, it is intended as a like-for-like replacement in the cooling circuit rather than a universal or trim-to-fit hose.\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 18-70930\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser Hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM tubing with synthetic knit reinforcement\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 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 14.0 H x 3.9 L x 12.2 W (centimetres)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282145972\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for fresh water or raw water engine cooling systems using this hose shape; confirm against your engine's existing hose before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 32-52481\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-70930 used for?\u003c\/strong\u003e It is a molded cooling system hose for fresh water or raw water cooling circuits on inboard and sterndrive boat engines, replacing a cracked, collapsed, or hardened original hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70930 cross-reference to a Mercruiser part number?\u003c\/strong\u003e Yes, Sierra 18-70930 directly replaces Mercruiser part number 32-52481.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the hose made from?\u003c\/strong\u003e The 18-70930 is built from EPDM tubing with a synthetic knit reinforcement layer, chosen for resistance to heat, ozone, and continuous water exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose molded or a straight-cut piece I have to bend myself?\u003c\/strong\u003e The 18-70930 is molded to its bend at the factory, so it holds shape and maintains full water flow through the curve rather than kinking like a forced straight hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70930 hose weigh?\u003c\/strong\u003e The Sierra 18-70930 molded hose weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70930 hose?\u003c\/strong\u003e It is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70930 an OEM-quality part or a generic aftermarket hose?\u003c\/strong\u003e Sierra molded hoses, including the 18-70930, are designed to be OEM quality and correct in fit, form, and function for the application they cross-reference.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in the package?\u003c\/strong\u003e The 18-70930 listing is for one molded hose (unit count of 1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-70930?\u003c\/strong\u003e The UPC for the Sierra 18-70930 molded hose is 808282145972.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-70930 fit both fresh water and raw water cooling systems?\u003c\/strong\u003e Yes, the 18-70930 is designed for use in either fresh water or raw water engine cooling systems.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988361457883,"sku":"SIE-18-70930","price":29.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70930_lg__80209.1558130201.500.750.jpg?v=1785187995"},{"product_id":"sierra-18-70932-molded-cooling-hose-thermostat-cover-to-starboard-manifold-replaces-32-871171-fits-mercruiser-4-3l-5-0l-5-7l","title":"Sierra 18-70932 Molded Cooling Hose, Thermostat Cover to Starboard Manifold, Mercruiser 32-871171, MCM\/MIE V-8 305 and 350 cid","description":"\u003cp\u003eThe Sierra 18-70932 is a molded cooling system hose built to route coolant from the thermostat cover to the starboard manifold on applicable Mercruiser V-8 inboard\/outboard engines. It is engineered for fresh water or raw water cooling systems and is molded (rather than bent) so it maintains full, unrestricted water flow through every curve of its shape while also simplifying installation compared to straight hose cut to fit.\u003c\/p\u003e\u003cp\u003eConstruction is EPDM tubing with a synthetic knit reinforcement layer, giving the hose resistance to heat, engine fluids, and the flexing loads typical of a running marine engine. Sierra molded hoses are built to OEM quality standards, so fit, form, and function match the original equipment hose they replace. The hose is finished in white and is designed as a direct fit for the specified engine applications, with no cutting or forming required at installation.\u003c\/p\u003e\u003cp\u003eThis hose fits 43L\/LX and MCM\/MIE V-8 (305 and 350 cid) engines and is specifically the thermostat-cover-to-starboard-manifold routing. It cross-references to Mercruiser part number 32-871171. Because this hose is designated for the starboard side, it is not interchangeable with the port-side hose, which carries its own separate Sierra and Mercruiser part numbers.\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 18-70932\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Thermostat cover to starboard manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM with synthetic knit reinforcement\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 0.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 7.5 centimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 7.5 L x 34.3 H x 28.2 W centimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282145927\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00808282145927\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e 43L\/LX and MCM\/MIE V-8 (305 and 350 cid) engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser 43L\/LX engines\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM\/MIE V-8 (305 and 350 cid) engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser 32-871171\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-70932 molded hose fit?\u003c\/strong\u003e The 18-70932 fits Mercruiser 43L\/LX and MCM\/MIE V-8 (305 and 350 cid) engines, routing coolant from the thermostat cover to the starboard manifold.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich side of the engine does this hose go on?\u003c\/strong\u003e This hose, Sierra 18-70932, is a starboard-side application, running from the thermostat cover to the starboard manifold; it is not the same part as the port-side hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Mercruiser equivalent part number for 18-70932?\u003c\/strong\u003e Sierra 18-70932 cross-references to Mercruiser part number 32-871171.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70932 hose made from?\u003c\/strong\u003e It is built from EPDM tubing with a synthetic knit reinforcement layer, giving it resistance to heat and engine fluids in a marine cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-70932 hose weigh?\u003c\/strong\u003e The 18-70932 molded hose weighs 0.3 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose molded or a straight cut length?\u003c\/strong\u003e The 18-70932 is a molded hose, shaped to maintain full water flow through its bends rather than a straight hose that needs to be manually bent or clamped into shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-70932 hose?\u003c\/strong\u003e This Sierra molded hose is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose work on both fresh water and raw water cooling systems?\u003c\/strong\u003e Yes, the Sierra 18-70932 molded hose is designed for use on fresh water or raw water cooling systems on inboard\/outboard marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70932 an OEM-quality replacement?\u003c\/strong\u003e Sierra molded hoses, including the 18-70932, are manufactured to OEM quality standards so fit, form, and function match the original hose being replaced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the package dimensions of the 18-70932 hose?\u003c\/strong\u003e The 18-70932 ships at 7.5 L x 34.3 H x 28.2 W centimeters, with a hose length of 7.5 centimeters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70932 include any hardware or clamps?\u003c\/strong\u003e The listing includes the molded hose itself (18-70932); hose clamps are not specified as included components.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988361588955,"sku":"SIE-18-70932","price":30.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70932_lg__44904.1558130284.500.750.jpg?v=1785189042"},{"product_id":"marine-molded-water-hose-for-mercruiser-2-5l-3-0l-distribution-block-to-water-pump-replaces-32-47640-sierra-18-70931","title":"Sierra 18-70931 Molded Hose, Distribution Block to Water Pump, Replaces 32-96879, Fits Mercruiser MCM 120\/2.5L, 140\/3.0L, 160\/165","description":"\u003cp\u003eThe Sierra 18-70931 Molded Hose is a purpose-shaped cooling system hose that runs from the distribution block to the water pump on applicable Mercruiser I\/O engines. Unlike a straight-cut length of hose, this molded hose is formed to the exact bend and routing needed for this connection point, so it seats correctly without kinking or requiring extra clamps to hold a shape. It is built from a rubber and plastic construction in white, sized to a nominal wall thickness of 0.12 inches, and is designed to fit Mercruiser MCM 120\/2.5L, 140\/3.0L, and 160\/165 applications. As a direct cross-reference to Mercruiser Stern Drive part number 32-96879, it restores factory cooling flow between the distribution block and water pump and is intended to meet or exceed the performance of the original equipment part it replaces. This hose is a straightforward maintenance-and-repair item for boat owners servicing the cooling circuit on a compatible Mercruiser engine, whether replacing a cracked, hardened, or leaking original hose or restoring a system after other cooling work.\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 18-70931\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 Distribution block to water pump\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\u003eNominal Wall Thickness:\u003c\/strong\u003e 0.12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.7 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282145934\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser MCM 120\/2.5L, MCM 140\/3.0L, MCM 160\/165\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 32-96879\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser MCM 120\/2.5L\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM 140\/3.0L\u003c\/li\u003e\n\u003cli\u003eMercruiser MCM 160\/165\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-96879\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70931 Molded Hose connect?\u003c\/strong\u003e The 18-70931 Molded Hose runs from the distribution block to the water pump in the engine cooling circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines does the 18-70931 fit?\u003c\/strong\u003e It is designed to fit Mercruiser MCM 120\/2.5L, MCM 140\/3.0L, and MCM 160\/165 applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70931 a direct replacement for a Mercruiser OEM hose?\u003c\/strong\u003e Yes, it cross-references to Mercruiser Stern Drive part number 32-96879 and is built to meet or exceed the performance of that original part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70931 Molded Hose made from?\u003c\/strong\u003e It is made from a rubber and plastic construction, finished in white, with a nominal wall thickness of 0.12 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70931 hose weigh?\u003c\/strong\u003e The Sierra 18-70931 Molded Hose weighs 0.7 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy is this hose molded instead of a straight length?\u003c\/strong\u003e The 18-70931 is molded to the specific bend needed between the distribution block and water pump, so it routes correctly without kinking rather than relying on a cut length of straight hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the 18-70931 distribution block hose?\u003c\/strong\u003e Replace it when the original distribution-block-to-water-pump hose on a compatible Mercruiser engine shows cracking, hardening, or leaking, which are common signs of a worn cooling hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70931 include any clamps or fittings?\u003c\/strong\u003e The listing covers the Sierra 18-70931 Molded Hose itself; no additional components are specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-70931 hose?\u003c\/strong\u003e The UPC for the Sierra 18-70931 Molded Hose is 808282145934.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70931 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket Sierra part manufactured to meet or exceed the original equipment hose it replaces, cross-referencing Mercruiser 32-96879.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362735835,"sku":"SIE-18-70931","price":30.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Untitled-1__11375.1753840681.500.750.jpg?v=1785188683"},{"product_id":"cylinder-head-hose-starboard-for-johnson-evinrude-90-115-hp-outboards-replaces-omc-340975-sierra-18-70936","title":"Sierra 18-70936 Starboard Cylinder Head Hose - Replaces OMC 340975, 321724, Fits 88-115 HP Outboards","description":"\u003cp\u003eThe Sierra 18-70936 is a starboard-side cylinder head hose engineered as a direct replacement for outboard engines that require this specific coolant hose. It routes coolant to and from the starboard cylinder head, and because it is a side-specific part, it is built to the exact length and routing needed for the starboard position only -- it is not interchangeable with the port-side hose. The hose is molded from silicone in white, a material chosen for its resistance to heat cycling, ozone, and the flexing that occurs as the engine runs and cools. Silicone construction helps the hose hold its shape and seal integrity over repeated thermal cycles, reducing the risk of cracking or coolant leaks that can occur with hoses made from lower-grade rubber compounds.\u003c\/p\u003e\u003cp\u003eThis hose is a direct cross-reference replacement for OMC part numbers 340975 and 321724, making it a straightforward swap for boat owners doing routine cooling-system maintenance or replacing a cracked, hardened, or leaking original hose. It fits a specific range of outboard horsepower and model designations as listed below. Buyers needing the matching port-side cylinder head hose should note that it is a separate part, Sierra 18-70937, since the two sides use different hose lengths and routing and are not interchangeable.\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 18-70936\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Cylinder Head Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide:\u003c\/strong\u003e Starboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicone\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 0.41 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282203375\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e90 HP (1994-95)\u003c\/li\u003e\n\u003cli\u003e100 HP (1996-97)\u003c\/li\u003e\n\u003cli\u003e115 HP (1994-97)\u003c\/li\u003e\n\u003cli\u003eE88 (1996)\u003c\/li\u003e\n\u003cli\u003eE90 (1996-98)\u003c\/li\u003e\n\u003cli\u003eE100 (1996-97)\u003c\/li\u003e\n\u003cli\u003eE112 (1996)\u003c\/li\u003e\n\u003cli\u003eE115 (1996-98)\u003c\/li\u003e\n\u003cli\u003eJ88 (1996)\u003c\/li\u003e\n\u003cli\u003eJ90 (1996-98)\u003c\/li\u003e\n\u003cli\u003eJ100 (1997-98)\u003c\/li\u003e\n\u003cli\u003eJ112 (1996)\u003c\/li\u003e\n\u003cli\u003eJ115 (1996-98)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e340975\u003c\/li\u003e\n\u003cli\u003e321724\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70936 for the port or starboard side?\u003c\/strong\u003e The Sierra 18-70936 is the starboard cylinder head hose only. The matching port-side hose is a different part, Sierra 18-70937, so make sure you order the correct side for your engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-70936 replace?\u003c\/strong\u003e It replaces OMC 340975 and OMC 321724. If either number is stamped on your old hose, the Sierra 18-70936 is the correct cross-reference for the starboard side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat outboard models and horsepower does this hose fit?\u003c\/strong\u003e The 18-70936 fits 90 HP (1994-95), 100 HP (1996-97), and 115 HP (1994-97) outboards, as well as the E88 (1996), E90 (1996-98), E100 (1996-97), E112 (1996), E115 (1996-98), J88 (1996), J90 (1996-98), J100 (1997-98), J112 (1996), and J115 (1996-98) model designations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70936 cylinder head hose made from?\u003c\/strong\u003e It is made from white silicone, chosen for its resistance to heat and ozone exposure and its ability to keep flexing without cracking through repeated engine heat cycles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-70936 weigh?\u003c\/strong\u003e The hose weighs 0.41 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-70936 on the port-side cylinder head instead?\u003c\/strong\u003e No. The 18-70936 is molded and routed specifically for the starboard side. For the port side, use Sierra 18-70937, which is a separate part with its own routing and length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine OEM hose or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-70936 is an aftermarket replacement hose built as a direct cross-reference for OMC 340975 and 321724, not an OEM-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70936 come with clamps or fittings?\u003c\/strong\u003e The 18-70936 is the cylinder head hose itself; clamps and fittings are not included as part of this hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace this hose?\u003c\/strong\u003e Cylinder head hoses harden, crack, or develop leaks over time from repeated heat cycling. If your starboard-side coolant hose shows cracking or is leaking, the 18-70936 is the direct replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the UPC 808282203375 identify the Sierra 18-70936 hose?\u003c\/strong\u003e Yes, UPC 808282203375 corresponds to the Sierra 18-70936 starboard cylinder head hose.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362768603,"sku":"SIE-18-70936","price":17.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70936_lg__12594.1558130493.500.750.jpg?v=1785188807"},{"product_id":"sierra-18-70939-molded-cooling-hose-replaces-mercruiser-32-8066351-fits-4-3l-5-0l-5-7l-lx-350-mag-thermostat-housing-to-port-exhaust-manifold","title":"Sierra 18-70939 Molded Cooling Hose - Mercruiser 32-8066361 - Thermostat Housing to Starboard Exhaust Manifold, GM V-6\/V-8 305\/350","description":"\u003cp\u003eThe Sierra 18-70939 is a molded cooling system hose engineered for fresh water or raw water cooling systems on MCM\/MIE GM V-6 and V-8 (305 and 350 cid) sterndrive engines. It is designed to route coolant from the thermostat housing to the starboard exhaust manifold, and its molded construction maintains full, unrestricted water flow through the bend rather than relying on a flexible section that can kink or collapse under vacuum.\u003c\/p\u003e\u003cp\u003eConstruction is EPDM tubing with a synthetic knit reinforcement layer, giving the hose the heat and chemical resistance needed for continuous exposure to engine coolant while resisting collapse, cracking, and age-hardening. Because it is molded to the exact bend and length required for this application, installation matches the original routing without needing to force, clamp-bend, or trim a straight length of hose. Sierra engineers this hose to OEM quality so that fit, form, and function match the factory original.\u003c\/p\u003e\u003cp\u003eThis hose is specific to the starboard side application; it is not interchangeable with a port-side routing hose, which would carry a different part number. Confirm your engine is an MCM\/MIE GM V-6 or V-8 (305 or 350 cid) application before ordering to ensure correct fit.\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 18-70939\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM tubing with synthetic knit reinforcement\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 0.64 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Thermostat housing to starboard exhaust manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide:\u003c\/strong\u003e Starboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Fitment:\u003c\/strong\u003e MCM\/MIE GM V-6 \u0026amp; V-8 (305 \u0026amp; 350 cid) engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercruiser Cross Reference:\u003c\/strong\u003e 32-8066361\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282227685\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMCM\/MIE GM V-6 \u0026amp; V-8 (305 \u0026amp; 350 cid) engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-8066361\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-70939 molded hose fit?\u003c\/strong\u003e The Sierra 18-70939 fits MCM\/MIE GM V-6 and V-8 (305 and 350 cid) engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere does this hose route on the engine?\u003c\/strong\u003e It routes from the thermostat housing to the starboard exhaust manifold, so it is intended for the starboard side of the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-70939 work on the port side instead?\u003c\/strong\u003e No. This hose is molded specifically for the starboard exhaust manifold routing; a port-side hose is a separate part with a different part number, so make sure you are ordering for the correct side.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there an OEM Mercruiser number for the 18-70939?\u003c\/strong\u003e Yes, the Sierra 18-70939 cross-references to Mercruiser part number 32-8066361.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the hose made from?\u003c\/strong\u003e The 18-70939 uses EPDM tubing with a synthetic knit reinforcement layer, giving it heat and chemical resistance for continuous coolant exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this hose weigh?\u003c\/strong\u003e The Sierra 18-70939 molded hose weighs 0.64 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-70939 hose?\u003c\/strong\u003e It is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a straight length of hose or pre-shaped?\u003c\/strong\u003e The 18-70939 is molded to the specific bend of the thermostat-housing-to-exhaust-manifold routing, providing full water flow through the bend rather than requiring a flexible hose to be forced into shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70939 built to OEM quality?\u003c\/strong\u003e Yes, Sierra molded hoses including the 18-70939 are designed to be OEM quality and correct in fit, form, and function for the original routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this hose be used in a raw water cooling system?\u003c\/strong\u003e Yes, the 18-70939 molded hose is designed for both fresh water and raw water cooling systems on the applicable MCM\/MIE GM V-6\/V-8 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70939 come with a warranty?\u003c\/strong\u003e Yes, this Sierra molded hose is covered under Sierra's customer satisfaction warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the 18-70939 is the right hose for my boat?\u003c\/strong\u003e Verify your engine is an MCM\/MIE GM V-6 or V-8 in 305 or 350 cid, and that you need the thermostat-housing-to-starboard-exhaust-manifold hose, before ordering part 18-70939.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362834139,"sku":"SIE-18-70939","price":42.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70939_lg__81795.1558130616.500.750.jpg?v=1785188152"},{"product_id":"sierra-18-70937-port-cylinder-head-hose-for-johnson-evinrude-omc-brp-88-115-hp-outboards-1994-1998-replaces-omc-340976","title":"Sierra Port Cylinder Head Hose 18-70937, Replaces OMC 340976, Fits Johnson\/Evinrude 90-115 HP Outboards","description":"\u003cp\u003eThe Sierra 18-70937 is a port-side cylinder head hose engineered as a direct replacement for Johnson and Evinrude (OMC\/BRP) outboard engines. This hose connects to the port cylinder head as part of the engine's water or fuel circulation routing, and is built to meet or exceed original equipment quality so it seals and performs like the factory part it replaces. It is molded from rubber for flexibility and resistance to the heat, oil, and fuel exposure typical of an outboard powerhead, and is finished in white to match the original OEM hose appearance.\u003c\/p\u003e\u003cp\u003eBecause this is a port-side-specific hose, it is not interchangeable with the starboard-side hose used on the same engine family -- the starboard hose is a separate part number, so confirm you are ordering for the correct side before installation. The 18-70937 fits a range of Johnson\/Evinrude outboard models from 88 HP through 115 HP, spanning several model years as detailed below, making it important to confirm your engine's specific model designation and year before purchase.\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 18-70937\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Name:\u003c\/strong\u003e Cylinder Head Hose (Port)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 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 0.51 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282203368\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) 90 HP (1994-95)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) 100 HP (1996-97)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) 115 HP (1994-97)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) E88 (1996)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) E90 (1996-98)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) E100 (1996-97)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) E112 (1996)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) E115 (1996-98)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) J88 (1996)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) J90 (1996-98)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) J100 (1997-98)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) J112 (1996)\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) J115 (1996-98)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e340976\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70937 fit?\u003c\/strong\u003e The Sierra 18-70937 fits Johnson and Evinrude (OMC\/BRP) outboard engines including the 90 HP (1994-95), 100 HP (1996-97), 115 HP (1994-97), and the E88, E90, E100, E112, E115, J88, J90, J100, J112, and J115 models across 1996-1998, depending on model.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose for the port or starboard side?\u003c\/strong\u003e Part number 18-70937 is the port cylinder head hose specifically. The starboard-side hose for the same engine family is a different part number, so double-check your engine's port side before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-70937 replace?\u003c\/strong\u003e It replaces OMC part number 340976. If your parts diagram or engine manual lists 340976 for the port cylinder head hose, the Sierra 18-70937 is the correct match.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the hose made from?\u003c\/strong\u003e The 18-70937 port cylinder head hose is made from rubber, chosen for flexibility and resistance to the heat and fluid exposure found around an outboard cylinder head.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70937 hose?\u003c\/strong\u003e This hose is white, matching the original equipment color used on the covered Johnson\/Evinrude outboard models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this part weigh?\u003c\/strong\u003e The Sierra 18-70937 port cylinder head hose weighs 0.51 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70937 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-70937 is a Sierra-branded aftermarket replacement part, manufactured to meet or exceed the quality of the original equipment OMC 340976 hose it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this hose on any Johnson or Evinrude outboard?\u003c\/strong\u003e No, the 18-70937 is fit-specific to the 88-115 HP Johnson\/Evinrude models and years listed for this part; it should not be assumed to fit outboards outside that range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70937 come with clamps or fittings?\u003c\/strong\u003e The 18-70937 is supplied as the cylinder head hose itself; check your engine's existing clamps and fittings for reuse during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if my engine needs the port hose or the starboard hose?\u003c\/strong\u003e Identify which cylinder head the failed or aging hose connects to on your engine; the 18-70937 is specifically the port-side hose, while the starboard side uses a separate Sierra part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-70937?\u003c\/strong\u003e The UPC for the Sierra 18-70937 port cylinder head hose is 808282203368.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362866907,"sku":"SIE-18-70937","price":19.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70937_lg__18840.1558130530.500.750.jpg?v=1785188528"},{"product_id":"molded-cooling-hose-32-8066351-thermostat-housing-to-port-exhaust-manifold-for-mercruiser-4-3l-5-0l-5-7l-350-mag-sierra-18-70938","title":"Sierra Molded Hose 18-70938, Replaces 32-8066351, Thermostat Housing to Port Exhaust Manifold, Mercruiser 4.3L-5.7L","description":"\u003cp\u003eThis Sierra molded hose, part number 18-70938, connects the thermostat housing to the port exhaust manifold on Mercruiser sterndrive engines. It is molded to a fixed shape rather than flexible tubing, so it seats correctly on the housing and manifold fittings without kinking or requiring extra clamps to hold its form. The hose is built from a plastic and rubber material and is finished in white.\u003c\/p\u003e\u003cp\u003eThis is the PORT side hose only. The equivalent hose for the starboard side thermostat housing to exhaust manifold connection is a separate part, 18-70939, which replaces a different OEM number -- be sure to order the correct side for your engine.\u003c\/p\u003e\u003cp\u003eFitment covers 262 Mag with VST (1996-97), 4.3L-LX (1993-96) Design III, 5.0L-LX (1988-95) Design III, 350Mag-EFI-MPI (1987-96), and 5.7L-LX (1988-96) Design III Mercruiser engines. Each package includes one molded hose. Sierra manufactures this hose to meet or exceed the specifications of the original equipment part it replaces, making it a direct aftermarket replacement rather than a universal-fit substitute.\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 18-70938\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 Thermostat housing to port exhaust manifold\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\u003eIncluded Components:\u003c\/strong\u003e Molded Hose (1 per package)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.71 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282227678\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 32-8066351\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e262 Mag with VST (1996-97)\u003c\/li\u003e\n\u003cli\u003e4.3L-LX (1993-96) Design III\u003c\/li\u003e\n\u003cli\u003e5.0L-LX (1988-95) Design III\u003c\/li\u003e\n\u003cli\u003e350Mag-EFI-MPI (1987-96)\u003c\/li\u003e\n\u003cli\u003e5.7L-LX (1988-96) Design III\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-8066351\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhich side does the 18-70938 hose fit?\u003c\/strong\u003e The 18-70938 molded hose is for the port side only, connecting the thermostat housing to the port exhaust manifold. The starboard version is a separate part, 18-70939, which uses a different OEM cross-reference, so double check which side you need before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does this hose replace?\u003c\/strong\u003e Sierra 18-70938 replaces OEM number 32-8066351.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the 18-70938 hose designed for?\u003c\/strong\u003e It fits Mercruiser 262 Mag with VST (1996-97), 4.3L-LX (1993-96) Design III, 5.0L-LX (1988-95) Design III, 350Mag-EFI-MPI (1987-96), and 5.7L-LX (1988-96) Design III engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this hose made of?\u003c\/strong\u003e The 18-70938 hose is made of plastic and rubber and is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in the package?\u003c\/strong\u003e One molded hose is included per package of the Sierra 18-70938.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70938 hose weigh?\u003c\/strong\u003e It weighs 0.71 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or a generic aftermarket hose?\u003c\/strong\u003e This is a genuine Sierra manufactured part, number 18-70938, built to meet or exceed the specifications of the original equipment hose it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere exactly does this hose connect?\u003c\/strong\u003e It runs from the thermostat housing to the port exhaust manifold on applicable Mercruiser engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70938 hose molded or a straight length of tubing I need to cut?\u003c\/strong\u003e It is a molded hose, pre-shaped to fit the thermostat housing to port exhaust manifold connection rather than a straight piece that needs to be bent or trimmed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this part?\u003c\/strong\u003e The UPC for Sierra 18-70938 is 808282227678.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362932443,"sku":"SIE-18-70938","price":41.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70938_lg__00682.1558130586.500.750.jpg?v=1785188182"},{"product_id":"molded-hose-for-mercruiser-7-4l-454-502-big-block-v8-replaces-mercury-32-897181-sierra-18-70934","title":"Sierra Molded Hose 18-70934, Replaces Mercury Marine 32-89718-1, Fits MCM\/MIE GM V-8 427 454 502 Engines","description":"\u003cp\u003eThe Sierra 18-70934 is a molded rubber cooling hose built for MerCruiser I\/O cooling systems. It is engineered as a direct equivalent to Mercury Marine part 32-89718-1, giving boat owners a reliable option when the factory hose on their MCM\/MIE GM V-8 (427, 454 \u0026amp; 502 cid) engine needs replacement. The hose measures 14 inches in length with a 1 3\/4 inch inside diameter and a 1.75 inch outside diameter, and is molded in white to match factory cooling system components.\u003c\/p\u003e\u003cp\u003eConstruction is polyethylene (PE), a material chosen for resistance to the heat, vibration, and constant flow conditions found in a marine cooling circuit. The molded shape is designed to route cleanly through the engine bay without kinking, maintaining consistent coolant or raw water flow to the engine. This is a universal-fit hose for the specified GM V-8 MerCruiser applications, making it a straightforward swap for a cracked, hardened, or leaking original hose.\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 18-70934\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyethylene (PE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\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\u003eOutside Diameter:\u003c\/strong\u003e 1.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.35 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e I\/O Mercruiser Cooling System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-89718-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282203344\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMCM\/MIE GM V-8 (427, 454 \u0026amp; 502 cid) engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 32-89718-1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-70934 hose fit?\u003c\/strong\u003e The Sierra 18-70934 molded hose fits MCM\/MIE GM V-8 engines in 427, 454, and 502 cid displacements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70934 hose a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e It is an aftermarket Sierra part manufactured as a direct equivalent to Mercury Marine 32-89718-1, not a Mercury-branded original.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of this hose?\u003c\/strong\u003e The Sierra 18-70934 has a 1 3\/4 inch inside diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long is the Sierra 18-70934 molded hose?\u003c\/strong\u003e This hose measures 14 inches in length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the outside diameter of the 18-70934 hose?\u003c\/strong\u003e The outside diameter is 1.75 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70934 cooling hose made from?\u003c\/strong\u003e It is molded from polyethylene (PE), chosen for its resistance to heat and vibration in a marine cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70934 hose?\u003c\/strong\u003e The hose is white, matching the factory-molded cooling hoses used on these MerCruiser applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes part number 32-89718-1 cross-reference to the Sierra 18-70934?\u003c\/strong\u003e Yes, Sierra 18-70934 replaces Mercury Marine part 32-89718-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-70934 hose weigh?\u003c\/strong\u003e It weighs 1.35 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-70934 hose fit both port and starboard sides?\u003c\/strong\u003e The 18-70934 is a universal-fit hose for MCM\/MIE GM V-8 427, 454, and 502 cid engines, with no side-specific designation given.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat signs indicate the original cooling hose needs replacement with a part like the 18-70934?\u003c\/strong\u003e Cracking, hardening, or leaking at the hose connections are common reasons to replace a MerCruiser cooling hose such as the Sierra 18-70934.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362965211,"sku":"SIE-18-70934","price":52.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70934_lg__63563.1558130384.500.750.jpg?v=1785188778"},{"product_id":"mercruiser-molded-hose-32-806856-oil-cooler-to-thermostat-housing-fits-4-3l-5-0l-5-7l-350-mag-stern-drives-sierra-18-70935","title":"Sierra 18-70935 Molded Hose - Thermostat Housing to Starboard Exhaust Manifold, Replaces 32-806856","description":"\u003cp\u003eThe Sierra 18-70935 is a molded rubber hose engineered to connect the thermostat housing to the starboard manifold on engines equipped with a 2 piece exhaust manifold. It is built as a direct replacement for OEM number 32-806856 and is designed to meet or exceed the performance of the original equipment part it replaces. The hose is molded in white and constructed from a durable plastic-composite material intended to withstand the heat, vibration, and harsh marine environment found in an engine compartment.\u003c\/p\u003e\u003cp\u003eEach package includes one molded hose. It is intended for MerCruiser stern drive applications across a wide range of engine families, including 200 2bbl, 230 4bbl, 260, 350 Mag, 4.3L, 5.0L, and 5.7L configurations in various carbureted, EFI, TBI, and MPI variants, as well as SKI and Black Scorpion applications. Because this hose is designated for the starboard side thermostat housing to manifold connection, buyers should confirm this fitment against their engine's exhaust manifold configuration before ordering; a separate hose (Sierra 18-70938) is used for the oil cooler to thermostat housing connection and is not interchangeable with this part.\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 18-70935\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Thermostat housing to starboard manifold with 2 piece exhaust manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Molded Hose\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 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282203351\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 hose per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 32-806856\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e200 2bbl (1987)\u003c\/li\u003e\n\u003cli\u003e230 4bbl (1987)\u003c\/li\u003e\n\u003cli\u003e260 (1987)\u003c\/li\u003e\n\u003cli\u003e350 Mag SKI (1991-96)\u003c\/li\u003e\n\u003cli\u003e350 Mag Alpha (1987-95)\u003c\/li\u003e\n\u003cli\u003e350 Mag Alpha 4bbl (1996)\u003c\/li\u003e\n\u003cli\u003e350 Mag Alpha EFI (Gen+) (1996)\u003c\/li\u003e\n\u003cli\u003e350 Mag Bravo MPI (1995)\u003c\/li\u003e\n\u003cli\u003e350 Mag Bravo MPI (Gen+) (1996)\u003c\/li\u003e\n\u003cli\u003e350 Mag EFI SKI TBI (1994-96)\u003c\/li\u003e\n\u003cli\u003e350 Mag MPI SKI (1995-96)\u003c\/li\u003e\n\u003cli\u003e4.3L (Gen II) (2bbl) (1993-96)\u003c\/li\u003e\n\u003cli\u003e4.3LX (Gen II) (4bbl) (1993-96)\u003c\/li\u003e\n\u003cli\u003e5.0L 2bbl (1988-95)\u003c\/li\u003e\n\u003cli\u003e5.0LX 4bbl (1988-95)\u003c\/li\u003e\n\u003cli\u003e5.7L (1988-95)\u003c\/li\u003e\n\u003cli\u003e5.7L 2bbl (1996)\u003c\/li\u003e\n\u003cli\u003e5.7L Alpha EFI TBI (1995)\u003c\/li\u003e\n\u003cli\u003e5.7L Bravo EFI TBI (1995)\u003c\/li\u003e\n\u003cli\u003e5.7L Competition SKI (1996)\u003c\/li\u003e\n\u003cli\u003e5.7L EFI (2bbl TBI) (1996)\u003c\/li\u003e\n\u003cli\u003e5.7L MIE (1996)\u003c\/li\u003e\n\u003cli\u003e5.7LX 4bbl (1996)\u003c\/li\u003e\n\u003cli\u003e5.7LX Bravo EFI (Gen+) (1996)\u003c\/li\u003e\n\u003cli\u003e5.7LX EFI 4bbl TBI (1996)\u003c\/li\u003e\n\u003cli\u003eBlack Scorpion (Gen+) (1996)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-806856\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-70935 molded hose used for?\u003c\/strong\u003e It connects the thermostat housing to the starboard manifold on engines equipped with a 2 piece exhaust manifold, a role specific to the Sierra 18-70935.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70935 replace OEM part 32-806856?\u003c\/strong\u003e Yes, Sierra 18-70935 is a direct replacement for OEM number 32-806856 and is built to meet or exceed the original part's performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this hose made of?\u003c\/strong\u003e The 18-70935 is a molded hose made from a plastic-composite material designed to hold up in the marine engine compartment environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70935 hose?\u003c\/strong\u003e This hose is molded in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70935 hose weigh?\u003c\/strong\u003e The Sierra 18-70935 molded hose weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses are included in the package?\u003c\/strong\u003e One molded hose is included per package of the 18-70935.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-70935 fit a 5.7L MerCruiser stern drive?\u003c\/strong\u003e Yes, the 18-70935 fits multiple 5.7L configurations including 5.7L (1988-95), 5.7L 2bbl (1996), 5.7L Alpha EFI TBI (1995), 5.7L Bravo EFI TBI (1995), 5.7L Competition SKI (1996), and several other 5.7L and 5.7LX variants.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70935 the same hose as the 18-70938?\u003c\/strong\u003e No. The 18-70935 is used for the thermostat housing to starboard manifold connection, while the 18-70938 is a separate part used for the oil cooler to thermostat housing connection; the two are not interchangeable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose fit 4.3L engines?\u003c\/strong\u003e Yes, the 18-70935 covers 4.3L (Gen II) (2bbl) (1993-96) and 4.3LX (Gen II) (4bbl) (1993-96) applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70935 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket Sierra part engineered to meet or exceed the OEM part it replaces, 32-806856.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70935 fit 350 Mag configurations?\u003c\/strong\u003e Yes, coverage includes 350 Mag SKI (1991-96), 350 Mag Alpha (1987-95), 350 Mag Alpha 4bbl (1996), 350 Mag Alpha EFI (Gen+) (1996), 350 Mag Bravo MPI (1995 and Gen+ 1996), 350 Mag EFI SKI TBI (1994-96), and 350 Mag MPI SKI (1995-96).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose for a specific side of the engine?\u003c\/strong\u003e Yes, the 18-70935 is specifically designed for the starboard side thermostat housing to manifold connection on engines with a 2 piece exhaust manifold.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988362997979,"sku":"SIE-18-70935","price":30.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70935_lg__20458.1558130434.500.750.jpg?v=1785188655"},{"product_id":"molded-cooling-hose-32-897491-for-mercruiser-7-4l-454-mag-502-mag-thermostat-housing-to-port-exhaust-manifold-sierra-18-70943","title":"Sierra Molded Hose 18-70943, OEM 32-89749-1, Thermostat Housing to Port Exhaust Manifold, Mercruiser GM V-8 454\/502 cid","description":"\u003cp\u003eThe Sierra 18-70943 is a molded rubber hose engineered for Mercruiser MCM\/MIE GM V-8 (454 \u0026amp; 502 cid) engines, including the 74L, 454 Mag, and 502 Mag applications. This hose is designed to connect the thermostat housing to the port exhaust manifold, routing coolant through this critical section of the cooling system. Because it is molded to the specific bend and length required for this connection, it seats correctly without the kinking or stress that a straight-cut universal hose can cause at this joint.\u003c\/p\u003e\u003cp\u003eThe hose is built with a durable plastic construction in a white finish, matching the fit, form, and function of the original Mercury Marine equipment it replaces. It is manufactured to Sierra's standard for marine cooling system components, giving boat owners a direct replacement for the factory hose without modification to surrounding fittings or clamps.\u003c\/p\u003e\u003cp\u003eThis is a port-side specific hose. It is designed only for the thermostat housing to port exhaust manifold connection; the starboard-side connection uses a separate Sierra part number, so confirm which side needs replacement before ordering.\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 18-70943\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 0.84 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282227722\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 32-89749-1\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\u003eEngine Fitment:\u003c\/strong\u003e MCM\/MIE GM V-8 (454 \u0026amp; 502 cid) engines, 74L, 454 Mag, 502 Mag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercruiser cooling system hose\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMCM\/MIE GM V-8 (454 \u0026amp; 502 cid) engines\u003c\/li\u003e\n\u003cli\u003e74L\u003c\/li\u003e\n\u003cli\u003e454 Mag\u003c\/li\u003e\n\u003cli\u003e502 Mag\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercury Marine 32-89749-1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70943 hose connect?\u003c\/strong\u003e The Sierra 18-70943 is a molded hose that runs from the thermostat housing to the port exhaust manifold on applicable Mercruiser engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose for the port or starboard side?\u003c\/strong\u003e The 18-70943 is specifically the port-side thermostat housing to exhaust manifold hose; the starboard-side connection requires a different Sierra part number, so verify the side before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-70943 hose designed for?\u003c\/strong\u003e It fits MCM\/MIE GM V-8 (454 \u0026amp; 502 cid) engines, including the 74L, 454 Mag, and 502 Mag configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-70943 replace?\u003c\/strong\u003e This hose cross-references to Mercury Marine part number 32-89749-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70943 hose made from?\u003c\/strong\u003e It is a molded plastic hose finished in white, matching the original equipment construction for this cooling system connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-70943 hose weigh?\u003c\/strong\u003e The 18-70943 hose weighs 0.84 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70943 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-70943 is a Sierra-manufactured replacement hose, sold as a direct cross-reference to Mercury Marine 32-89749-1 rather than an OEM Mercury Marine part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-70943 come with clamps or fittings?\u003c\/strong\u003e The 18-70943 is supplied as the molded hose itself; no clamps or fittings are included based on available product information.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-70943 hose fit a Mercruiser 454 Mag or 502 Mag engine?\u003c\/strong\u003e Yes, the 18-70943 is designed to fit Mercruiser 454 Mag and 502 Mag engines along with the MCM\/MIE GM V-8 454 and 502 cid platforms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does this hose need to be molded rather than a straight length?\u003c\/strong\u003e The 18-70943 is molded to the specific bend required to route coolant from the thermostat housing to the port exhaust manifold, so it seats without kinking the way a straight-cut hose could at this joint.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363129051,"sku":"SIE-18-70943","price":45.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70943_lg__02904.1558130791.500.750.jpg?v=1785189208"},{"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"},{"product_id":"sierra-18-70945-molded-cooling-hose-for-mercruiser-4-3l-gen-1998-2007-replaces-oem-32-862139","title":"Sierra 18-70945 Molded Hose, Thermostat Housing to Port Manifold, Replaces 32-862139, Fits Mercruiser 4.3L (Gen+) 1998-07","description":"\u003cp\u003eThe Sierra 18-70945 is a molded coolant hose engineered to connect the thermostat housing to the port manifold on Mercruiser stern drive engines equipped with a two-piece exhaust manifold. Rather than a generic length of tubing that has to be trimmed and clamped into a rough approximation of the original routing, this hose is molded to the factory bend and connection points, so it seats correctly against the thermostat housing and port manifold fittings without kinking or requiring extra hardware to hold its shape under engine heat and vibration.\u003c\/p\u003e\u003cp\u003eIt is built from glass (glass-reinforced) hose material in white, giving it the heat resistance and structural rigidity needed to handle the closed cooling system's flow between the thermostat housing and the port manifold. Sierra designs this hose to meet or exceed the performance of the original equipment part it replaces, and each package contains one hose. It directly replaces Mercruiser stern drive part 32-862139 and is intended for Mercruiser 4.3L (Gen+), 4.3L EFI (Gen+), and 4.3LH (Gen+) engines that use a two-piece exhaust manifold configuration. Because this hose is specific to the thermostat-housing-to-port-manifold routing, confirm your engine's manifold configuration and engine designation before ordering to make sure it matches your application.\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 18-70945\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 Thermostat Housing to Port Manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Manifold Configuration:\u003c\/strong\u003e Two-Piece Exhaust Manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Glass\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 0.68 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 1 hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282265595\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser 4.3L (Gen+) (1998-07)\u003c\/li\u003e\n\u003cli\u003eMercruiser 4.3L EFI (Gen+) (1998-01)\u003c\/li\u003e\n\u003cli\u003eMercruiser 4.3LH (Gen+) (1998-02)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-862139\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70945 hose connect?\u003c\/strong\u003e It connects the thermostat housing to the port manifold on applicable Mercruiser stern drive engines, and is molded specifically for engines with a two-piece exhaust manifold.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part does the 18-70945 replace?\u003c\/strong\u003e It replaces Mercruiser stern drive part number 32-862139.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is this hose designed for?\u003c\/strong\u003e The Sierra 18-70945 fits Mercruiser 4.3L (Gen+) (1998-07), 4.3L EFI (Gen+) (1998-01), and 4.3LH (Gen+) (1998-02) engines with a two-piece exhaust manifold.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70945 hose side-specific?\u003c\/strong\u003e Yes, this hose routes to the port manifold; it is not a universal port-or-starboard fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the hose made from?\u003c\/strong\u003e The 18-70945 is made from glass (glass-reinforced) hose material in white, chosen for heat resistance in the closed cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in a package?\u003c\/strong\u003e Each package of the Sierra 18-70945 includes one molded hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70945 hose?\u003c\/strong\u003e It is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70945 weigh?\u003c\/strong\u003e The hose weighs 0.68 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this hose fit engines with a one-piece exhaust manifold?\u003c\/strong\u003e The 18-70945 is specified for engines with a two-piece exhaust manifold configuration on the listed 4.3L (Gen+), 4.3L EFI (Gen+), and 4.3LH (Gen+) engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70945 a genuine Sierra part or generic aftermarket?\u003c\/strong\u003e It is a genuine Sierra part, molded to meet or exceed the performance of the original equipment hose it replaces (32-862139).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70945 fit 4.3L EFI models?\u003c\/strong\u003e Yes, it is designed for 4.3L EFI (Gen+) (1998-01) engines in addition to 4.3L (Gen+) and 4.3LH (Gen+) applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is 18-70945 different from Sierra's other similar molded hoses, like 18-70953?\u003c\/strong\u003e The 18-70945 routes the thermostat housing to the port manifold on 4.3L-family engines, while 18-70953 is a separate part number for a seawater pump to oil cooler application on different engine fitments, so make sure you are ordering the part number matching your specific connection point.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363194587,"sku":"SIE-18-70945","price":48.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70945_lg__77555.1558130888.500.750.jpg?v=1785188251"},{"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"},{"product_id":"sierra-18-70948-molded-hose-cooler-to-thermostat-housing-replaces-mercruiser-32-807407-fits-454-502-mag-mpi-and-7-4lx-mpi-bravo-gen-vi","title":"Sierra Molded Hose 18-70948 - Cooler to Thermostat Housing for MerCruiser 454 Mag MPI, 7.4LX MPI Bravo, 502 Mag MPI (Gen VI)","description":"\u003cp\u003eThis Sierra molded hose, part number 18-70948, is a direct-fit cooling system hose engineered to connect the cooler to the thermostat housing on applicable MerCruiser inboard\/sterndrive engines. It is molded (not a cut-to-length universal hose) so it follows the exact routing path required for a clean, factory-style installation without kinking or restricting coolant flow. The hose is finished in white and is built to Sierra's quality standard, which the company states meets or exceeds the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003eIt is designed for use on the 454 Mag MPI (Gen VI), 7.4LX MPI Bravo (Gen VI), and 502 Mag MPI (Gen VI) engine platforms, and it replaces OEM number 32-807407. Sierra supplies OEM engine manufacturers and boat builders with cooling system components daily, so this hose is manufactured to hold up to sustained heat cycling and the harsh marine operating environment. Replacing a cracked, softened, or leaking cooler-to-thermostat-housing hose with this molded part restores proper coolant circulation and helps prevent overheating.\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 18-70948\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Cooler to thermostat housing\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 808282265625\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 32-807407\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e454 Mag MPI (Gen VI) (1996-01)\u003c\/li\u003e\n\u003cli\u003e7.4LX MPI Bravo (Gen VI) (1996-97)\u003c\/li\u003e\n\u003cli\u003e502 Mag MPI (Gen VI) (1996-01)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-807407\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70948 molded hose connect?\u003c\/strong\u003e The Sierra 18-70948 molded hose runs from the cooler to the thermostat housing on the applicable MerCruiser engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is part number 18-70948 designed for?\u003c\/strong\u003e It fits the 454 Mag MPI (Gen VI) (1996-01), the 7.4LX MPI Bravo (Gen VI) (1996-97), and the 502 Mag MPI (Gen VI) (1996-01) engine platforms.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-70948 replace?\u003c\/strong\u003e Sierra 18-70948 replaces OEM number 32-807407.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a molded hose or a universal cut-to-length hose?\u003c\/strong\u003e 18-70948 is a molded hose, shaped to the specific cooler-to-thermostat-housing routing rather than a straight length that needs to be bent or clamped into place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70948 hose?\u003c\/strong\u003e The hose is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70948 hose weigh?\u003c\/strong\u003e It weighs 0.92 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this fit engines outside the listed MerCruiser models?\u003c\/strong\u003e 18-70948 is specified for the 454 Mag MPI (Gen VI), 7.4LX MPI Bravo (Gen VI), and 502 Mag MPI (Gen VI); confirm your engine matches one of these before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-70948 a genuine aftermarket replacement?\u003c\/strong\u003e Yes, it is a Sierra-manufactured replacement part built to meet or exceed the OEM 32-807407 hose it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat signs indicate the cooler-to-thermostat-housing hose needs replacement?\u003c\/strong\u003e Cracking, softening, or coolant leaks at the fittings on the original hose are signs it should be replaced with a part like the 18-70948.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e You receive one Sierra 18-70948 molded hose for the cooler-to-thermostat-housing connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-70948 hose?\u003c\/strong\u003e The UPC for this part is 808282265625.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363292891,"sku":"SIE-18-70948","price":40.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70948_lg__57692.1558131053.500.750.jpg?v=1785188984"},{"product_id":"molded-cooling-hose-18-70956-replaces-mercruiser-32-16012-fits-4-3l-4-3lx-gen-ii-oil-cooler-to-thermostat-housing","title":"Sierra Molded Hose 18-70956 - Oil Cooler to Thermostat Housing, Replaces 32-16012, Fits MerCruiser 4.3L \u0026 MC175\/205","description":"\u003cp\u003eThe Sierra 18-70956 is a molded EPDM hose built to route coolant from the oil cooler to the thermostat housing on applicable MerCruiser stern drive engines. It is engineered for thermostat housings that have all four hose connectors cast directly into the housing, with no separate \"T\" connector - two hoses run to the manifold and two hoses run to the elbow. The hose is molded rather than cut-to-fit, so it holds its shape through bends without kinking and installs in the original factory routing without modification.\u003c\/p\u003e\u003cp\u003eConstruction is EPDM tubing with a synthetic knit reinforcement layer, giving the hose resistance to heat, oil exposure, and the flexing that comes with engine vibration in a marine environment. It is finished in white and manufactured to OEM quality so fit, form, and function match the original equipment. This hose is intended for MerCruiser MC175\/205, 4.3L, 4.3L (Gen II), and 4.3LX (Gen II) applications using the four-connector thermostat housing design, and it directly replaces OEM\/Quicksilver part 32-16012.\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 18-70956\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e 32-16012\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e MC175\/205 (1987), 4.3L (1988-92), 4.3L (Gen II) (1992-95), 4.3LX (Gen II) (1992-95)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Oil cooler to thermostat housing, four hose connectors cast into the thermostat housing (no \"T\" connector), two hoses to manifold and two hoses to elbow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM with synthetic knit reinforcement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Wall Thickness:\u003c\/strong\u003e 1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.93 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282265700\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser MC175\/205 (1987)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L (1988-92)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3L (Gen II) (1992-95)\u003c\/li\u003e\n\u003cli\u003eMerCruiser 4.3LX (Gen II) (1992-95)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e32-16012\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-70956 hose fit?\u003c\/strong\u003e The Sierra 18-70956 molded hose fits MerCruiser MC175\/205 (1987), 4.3L (1988-92), 4.3L (Gen II) (1992-95), and 4.3LX (Gen II) (1992-95) engines that use a thermostat housing with all four hose connectors cast directly into it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-70956 replace an OEM part number?\u003c\/strong\u003e Yes, it directly replaces OEM\/Quicksilver part number 32-16012.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is this hose used for?\u003c\/strong\u003e It routes coolant from the oil cooler to the thermostat housing, with two of its hose runs going to the manifold and two going to the elbow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70956 hose made from?\u003c\/strong\u003e It is molded from EPDM tubing with a synthetic knit reinforcement layer, chosen for heat and oil resistance in a marine cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the hose?\u003c\/strong\u003e The Sierra 18-70956 molded hose is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70956 hose weigh?\u003c\/strong\u003e It weighs 0.93 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this hose work with a thermostat housing that has a separate \"T\" connector?\u003c\/strong\u003e No. The 18-70956 is designed specifically for thermostat housings with all four hose connectors cast into the housing and no separate \"T\" connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hose connections are needed to install this part?\u003c\/strong\u003e Installation uses four connections total: two hoses run to the manifold and two hoses run to the elbow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70956 hose genuine Sierra or a generic aftermarket part?\u003c\/strong\u003e It is a genuine Sierra part manufactured to OEM quality, so fit, form, and function match the original equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the wall thickness of the 18-70956 hose?\u003c\/strong\u003e The nominal wall thickness is 1\/8 inch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-70956 and 18-70955 hoses?\u003c\/strong\u003e The 18-70956 is built for MerCruiser MC175\/205, 4.3L, and 4.3LX (Gen II) engines, while the related 18-70955 hose is designed for MC200\/230, 5.0L Alpha, MC260, 350 Mag Alpha, 5.7L Alpha \u0026amp; Bravo, 454 Mag Bravo, and 7.4L (GenV) Bravo engines. Both share the same four-connector, no-\"T\"-connector design but are not interchangeable between engine families, so it is important to order the SKU matching your engine.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363653339,"sku":"SIE-18-70956","price":26.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70956_lg__06109.1558131547.500.750.jpg?v=1785188354"},{"product_id":"sierra-18-70955-molded-cooling-hose-for-mercruiser-4-3l-v6-replaces-oem-32-16012-oil-cooler-to-thermostat-housing","title":"Sierra 18-70955 Molded Hose, Oil Cooler to Thermostat Housing for MC175\/205 \u0026 4.3L MerCruiser","description":"\u003cp\u003eThe Sierra 18-70955 is a molded cooling system hose engineered to connect the oil cooler to the thermostat housing on applicable MerCruiser engines. It is designed for thermostat housings that have all four hose connectors cast directly into the housing itself, with no separate \"T\" connector required. In this configuration, two hoses run to the manifold and two hoses run to the elbow, and the 18-70955 is molded to complete that oil cooler to thermostat housing connection with a precise, correct-fit bend rather than a straight length that has to be forced into shape.\u003c\/p\u003e\u003cp\u003eSierra molds this hose for fresh water or raw water cooling systems, shaping it to maintain full, unrestricted water flow through the bend while also simplifying installation compared to a generic straight hose. Construction uses EPDM tubing with a synthetic knit reinforcement, giving the hose the flexibility and heat resistance needed for engine bay cooling circuits. It is finished in white and built to OEM quality standards, so fit, form, and function match the original equipment it replaces. This hose is intended for the specific MerCruiser engines and model years listed below; confirm your engine designation before ordering.\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 18-70955\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Oil cooler to thermostat housing connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat Housing Configuration:\u003c\/strong\u003e All four hose connectors cast into the housing (no \"T\" connector)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Routing:\u003c\/strong\u003e Two hoses to manifold and two hoses to elbow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e EPDM tubing with synthetic knit reinforcement\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 0.37 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMC175\/205 (1987)\u003c\/li\u003e\n\u003cli\u003e4.3L (1988-92)\u003c\/li\u003e\n\u003cli\u003e4.3L (Gen II) (1992-95)\u003c\/li\u003e\n\u003cli\u003e4.3LX (Gen II) (1992-95)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-70955 hose connect?\u003c\/strong\u003e The 18-70955 is a molded hose that connects the oil cooler to the thermostat housing, on housings where all four hose connectors are cast into the housing itself with no separate T connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is the 18-70955 designed for?\u003c\/strong\u003e This hose fits the MC175\/205 (1987), 4.3L (1988-92), 4.3L (Gen II) (1992-95), and 4.3LX (Gen II) (1992-95) MerCruiser engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this hose a straight length I have to bend myself?\u003c\/strong\u003e No, the Sierra 18-70955 is molded into the correct shape for the oil cooler to thermostat housing routing, so it fits the bend without being forced into place like a generic straight hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-70955 hose made from?\u003c\/strong\u003e It is built from EPDM tubing with a synthetic knit reinforcement, a construction suited to the heat and flexing found in a marine engine cooling circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-70955?\u003c\/strong\u003e The hose is white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-70955 hose weigh?\u003c\/strong\u003e It weighs 0.37 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come with the 18-70955, and how do they route?\u003c\/strong\u003e The 18-70955 is used in a configuration with two hoses to the manifold and two hoses to the elbow, connecting the oil cooler to the thermostat housing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-70955 compatible with a thermostat housing that uses a separate T connector?\u003c\/strong\u003e No, this molded hose is designed for thermostat housings with all four hose connectors cast into the housing itself, not housings that use a separate T connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-70955 work for both fresh water and raw water cooling systems?\u003c\/strong\u003e Yes, Sierra molds this hose for use in either fresh water or raw water cooling systems on the applicable MerCruiser engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-70955 built to OEM quality?\u003c\/strong\u003e Yes, Sierra designs the 18-70955 to OEM quality standards so it matches the original hose in fit, form, and function.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-70955 fit a 5.0L or 5.7L MerCruiser engine?\u003c\/strong\u003e No, the 18-70955 is fitted to the MC175\/205, 4.3L, and 4.3LX engines listed; other MerCruiser V8 engines use a different Sierra part number.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363686107,"sku":"SIE-18-70955","price":35.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-70955_lg__58685.1706560936.500.750.jpg?v=1785188657"},{"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"},{"product_id":"sierra-18-75100-molded-hose-1-in-id-x-48-in-straight-replaces-mercury-32-8m0062614-marine-cooling-hose","title":"Sierra Molded Hose 18-75100, 48 Inch x 1 Inch, Volvo Penta Engine Applications","description":"\u003cp\u003eThe Sierra Molded Hose 18-75100 is a purpose-molded rubber hose built for Volvo Penta engine applications. Unlike straight-cut flexible tubing, a molded hose holds a fixed shape through its bends, which keeps the coolant, exhaust, or fuel path free of the kinks and pinch points that can develop when a straight hose is forced around tight engine-room routing. The hose measures 48 inches in length and 1 inch in width, giving installers enough material to route around engine components while trimming to the exact run needed. It is finished in white, making it easy to visually trace within an engine compartment during installation or inspection.\u003c\/p\u003e\u003cp\u003eThis hose is sold as a single unit and is intended as a direct replacement for a worn, cracked, or leaking factory hose on applicable Volvo Penta engine setups. Choosing a properly sized molded hose over a generic length of tubing helps maintain consistent flow and a secure seal at the hose clamps, reducing the risk of leaks that can develop with improvised routing.\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 18-75100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Molded Hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 48 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.58 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Volvo Penta engine hoses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282259839\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Volvo Penta engine hose applications.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-75100?\u003c\/strong\u003e It is a molded rubber engine hose, Sierra part number 18-75100, built for Volvo Penta engine hose applications. It measures 48 inches long by 1 inch wide and is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-75100 hose fit any boat engine?\u003c\/strong\u003e The Sierra 18-75100 is designated for Volvo Penta engine hose applications, so it should be matched against the hose it is replacing on a Volvo Penta engine before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-75100 hose?\u003c\/strong\u003e This hose measures 48 inches in length and 1 inch in width.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-75100 hose weigh?\u003c\/strong\u003e The Sierra 18-75100 weighs 1.58 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-75100 hose?\u003c\/strong\u003e It is white, which makes it easy to spot and trace within an engine compartment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-75100 a straight hose or a molded hose?\u003c\/strong\u003e Sierra 18-75100 is a molded hose, meaning it is shaped rather than a plain straight-cut length of tubing, so it holds its form through bends in the routing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many hoses come in the package?\u003c\/strong\u003e The Sierra 18-75100 listing is for a single molded hose, a unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-75100 hose genuine Sierra product?\u003c\/strong\u003e Yes, part number 18-75100 is a genuine Sierra-branded molded hose, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-75100 hose?\u003c\/strong\u003e The UPC for the Sierra 18-75100 molded hose is 808282259839.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-75100 hose be trimmed during installation?\u003c\/strong\u003e The 48 inch length of the Sierra 18-75100 allows for cutting to the exact run needed during installation, since it is supplied as a full-length molded hose.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988385018075,"sku":"SIE-18-75100","price":27.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-75100_lg__64036.1558132223.500.750.jpg?v=1785188403"},{"product_id":"sea-dog-521550-1-inboard-motor-flush-molded-rubber-cup-and-aluminum-leg-cooling-system-flusher-for-inboard-engines","title":"Sea-Dog Inboard Motor Flush 521550-1 - Molded Rubber and Aluminum Lower Unit Flusher","description":"\u003cp\u003eThe Sea-Dog Inboard Motor Flush (521550-1) is a molded rubber and aluminum flushing tool designed to clear salt, sand, minerals, and other contaminants out of an inboard engine's lower unit cooling system. Regular flushing with fresh water helps extend the service life of the engine by preventing buildup inside the cooling passages.\u003c\/p\u003e\u003cp\u003eThe design uses a rubber cup that fits directly over the water intake, sealing against the hull, while an extending aluminum leg holds the cup firmly in place. A standard garden hose connects to the flusher to supply fresh water directly to the intake, and no tools are required for setup or use. This makes it a practical, low-effort way to flush an inboard engine while it is out of the water.\u003c\/p\u003e\u003cp\u003eIt is well suited to routine maintenance tasks such as winterizing, spring commissioning, and general tune-ups where running the engine with a fresh water supply is needed. The molded rubber and aluminum construction is built to hold a seal against the hull while withstanding repeated hose connections.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sea-Dog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 521550-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Molded Rubber\/Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimension A:\u003c\/strong\u003e 15-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimension B:\u003c\/strong\u003e 27-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e.99 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Pack:\u003c\/strong\u003e 1 each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Flush\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e For salt water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 035514521451\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5215501\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sea-Dog 521550-1 Inboard Motor Flush do?\u003c\/strong\u003e It flushes salt, sand, minerals, and other contaminants out of an inboard engine's lower unit cooling system using fresh water, which helps extend the engine's service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I use this motor flush?\u003c\/strong\u003e Fit the rubber cup of the 521550-1 over the water intake, connect a garden hose to it, and extend the aluminum leg to seal the cup against the hull; no tools are required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any tools to install or use it?\u003c\/strong\u003e No tools are required. The Sea-Dog 521550-1 seats the rubber cup over the intake and the aluminum leg extends to hold the seal against the hull.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 521550-1 made of?\u003c\/strong\u003e It is constructed of molded rubber and aluminum, combining a rubber sealing cup with an aluminum extending leg.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this motor flush?\u003c\/strong\u003e The Sea-Dog Inboard Motor Flush measures 15-1\/2 inches (A) by 27-1\/2 inches (B).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 521550-1 weigh?\u003c\/strong\u003e The Sea-Dog Inboard Motor Flush weighs.99 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this connected to a standard garden hose?\u003c\/strong\u003e Yes, the 521550-1 connects to a garden hose to supply fresh water through the cup and into the engine's cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I use an inboard motor flush like this?\u003c\/strong\u003e It is intended for winterizing, tune-ups, and other maintenance that requires running an inboard engine while it is out of the water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sea-Dog 521550-1 suitable for saltwater use?\u003c\/strong\u003e Yes, the 521550-1 is recommended for use with engines operated in salt water, helping remove salt deposits from the cooling system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this product have an OEM equivalent part number?\u003c\/strong\u003e Yes, the Sea-Dog 521550-1 Inboard Motor Flush has an OEM equivalent part number of 5215501.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many units come in a pack?\u003c\/strong\u003e The Sea-Dog 521550-1 Inboard Motor Flush is sold in a standard pack of 1 each.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the mounting design work on any hull?\u003c\/strong\u003e The rubber cup seals against the hull around the water intake while the aluminum leg extends to hold it in place, a flush-mount design rather than a fixed hardware installation.\u003c\/p\u003e","brand":"Sea-Dog","offers":[{"title":"Default Title","offer_id":48988826239195,"sku":"S-D-521550-1","price":16.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/5293.jpg?v=1784429769"},{"product_id":"moeller-099085-00-pro-series-inboard-motor-flusher-for-boats-with-thru-hull-water-intakes","title":"Moeller 099085-00 Pro Series Inboard Motor Flusher, Black, Stainless Steel T-Fitting for Ski Boats","description":"\u003cp\u003eThe Moeller 099085-00 Pro Series Inboard Motor Flusher is a black, submersible engine flusher built for out-of-water flushing on inboard-powered boats. It installs in seconds, giving owners a fast way to run fresh water through the engine's cooling system without launching the boat or connecting garden-hose adapters to the outdrive.\u003c\/p\u003e\u003cp\u003eThe flusher is designed to fit inboards, performance ski boats, and other boats equipped with a thru-hull water intake or sea strainer. A stainless steel T-fitting slides directly into the intake slot and can be inserted in either direction, so there is no need to worry about orientation during installation. A 360 degree plastic support ring wraps the fitting to hold it snugly against the bottom of the boat, eliminating the old workaround of wedging a pole between the trailer bunks to brace the flusher in place.\u003c\/p\u003e\u003cp\u003eConstructed from durable plastic with a stainless steel T-fitting, the unit is built to handle repeated flushing sessions and resist corrosion from marine water exposure. It is a straightforward accessory for anyone who regularly flushes an inboard engine after use in saltwater or debris-laden water.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Moeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 099085-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Submersible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Source:\u003c\/strong\u003e Manual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Design:\u003c\/strong\u003e Stainless steel T-fitting, inserts in either direction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport Ring:\u003c\/strong\u003e 360 degree plastic support ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e No tools required, installs in seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 739729013830\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00739729013830\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits ski boats and other boats with sea strainers or a thru-hull water intake\u003c\/li\u003e\n\u003cli\u003eDesigned for inboard and performance ski boat engine flushing applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat boats does the Moeller 099085-00 motor flusher fit?\u003c\/strong\u003e The Moeller 099085-00 is designed to fit inboards, performance ski boats, and other boats with a thru-hull water intake or sea strainer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long does it take to install this flusher?\u003c\/strong\u003e Installation takes seconds. The stainless steel T-fitting on the 099085-00 slides directly into the intake slot without tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the T-fitting need to face a specific direction?\u003c\/strong\u003e No. The stainless steel T-fitting on the Moeller 099085-00 slides into the intake slot in either direction, so orientation is not a concern during installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat keeps the flusher secured against the hull?\u003c\/strong\u003e A 360 degree plastic support ring wraps the fitting on the 099085-00 to hold it snugly against the bottom of the boat, so there is no need to brace a pole between the trailer bunks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Moeller 099085-00 made from?\u003c\/strong\u003e It is made from plastic with a stainless steel T-fitting, a combination chosen for corrosion resistance in marine water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this motor flusher weigh?\u003c\/strong\u003e The Moeller 099085-00 Pro Series Inboard Motor Flusher weighs 1 pound.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this flusher used with the boat in or out of the water?\u003c\/strong\u003e It is designed for out-of-water engine flushing applications, letting the engine's cooling system be flushed with fresh water while the boat is on the trailer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Moeller 099085-00?\u003c\/strong\u003e This inboard motor flusher is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 099085-00 require any tools to use?\u003c\/strong\u003e No tools are required. The Moeller 099085-00 is a slide-in design that installs directly into the boat's water intake slot.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this flusher powered or manual?\u003c\/strong\u003e The Moeller 099085-00 is a manual, submersible-style flusher; it connects to a garden hose and does not require electric power to operate.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this flusher work on a boat without a sea strainer intake slot?\u003c\/strong\u003e The Moeller 099085-00 is built for boats with a thru-hull water intake or sea strainer slot that the T-fitting can slide into; boats without this type of intake are not a match for this design.\u003c\/p\u003e","brand":"Moeller Marine","offers":[{"title":"Default Title","offer_id":48991101550811,"sku":"MOE-099085-00","price":40.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/moe-099085-00_lg__39617.1558172512.500.750.jpg?v=1785188673"},{"product_id":"perko-0456dp7-flush-pro-engine-flushing-and-winterizing-valve-1-1-4-in-for-inboard-engines","title":"Perko 0456DP7 Inline Flushing Valve, 1-1\/4 Inch Hose Connection","description":"\u003cp\u003eThe Perko 0456DP7 is an inline check valve built for flushing and winterizing inboard engines with fresh water. It connects to a standard garden hose and uses water pressure to automatically pull fresh water into the boat's cooling system, so freshwater flushing becomes as simple as hooking up a hose. The valve is also commonly used to winterize an inboard engine at the end of the season, and it can be used with onboard generators as well.\u003c\/p\u003e\u003cp\u003eThis listing is for the valve only, sized for 1-1\/4 inch hose connections. The valve body is built from polymer with stainless steel components for corrosion resistance in a marine environment, and it uses a 1-1\/4 inch NPT threaded inlet and outlet connection. Perko also offers this same inline valve in 5\/8 inch and 1 inch hose sizes, and a companion Valve \u0026amp; Kit version for buyers who need the mounting kit included, so be sure to match the hose size and configuration to your engine's flushing setup.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Perko\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 0456DP7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Engine Flushing and Winterizing Valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Hose Size:\u003c\/strong\u003e 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polymer, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Connection Size:\u003c\/strong\u003e 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet Connection Type:\u003c\/strong\u003e Female Iron Pipe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Connection Size:\u003c\/strong\u003e 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet Connection Type:\u003c\/strong\u003e 1-1\/4 inch connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e Flush Valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 3 x 9 x 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 085226343414\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eThe Perko 0456DP7 is a universal-fit valve designed for inboard engines, sized for 1-1\/4 inch hose connections. It is not tied to a specific engine make or model, so it fits any inboard flushing or winterizing setup that uses a 1-1\/4 inch hose.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Perko 0456DP7 valve do?\u003c\/strong\u003e It is an inline check valve that connects to a garden hose and uses water pressure to automatically pull fresh water into an inboard engine's cooling system, making freshwater flushing as simple as connecting a hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hose size does the 0456DP7 fit?\u003c\/strong\u003e The 0456DP7 is sized for 1-1\/4 inch hose, with a 1-1\/4 inch NPT threaded inlet and outlet connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 0456DP7 come with a mounting kit?\u003c\/strong\u003e No, the 0456DP7 is the valve only. Perko sells a separate Valve \u0026amp; Kit version (0457DP7) in the same 1-1\/4 inch hose size for buyers who need the mounting kit included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this valve be used for winterizing as well as flushing?\u003c\/strong\u003e Yes, the Perko 0456DP7 is designed for both freshwater flushing and winterizing of inboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 0456DP7 valve made from?\u003c\/strong\u003e It is constructed of polymer with stainless steel components for corrosion resistance in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Perko 0456DP7 valve specific to a certain engine brand?\u003c\/strong\u003e No, the 0456DP7 is a universal-fit valve for inboard engines; it is not limited to a specific engine make or model, only to the 1-1\/4 inch hose connection size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Perko 0456DP7 weigh?\u003c\/strong\u003e The 0456DP7 weighs 1.6 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this valve be used with an onboard generator?\u003c\/strong\u003e Yes, the Perko 0456DP7 flushing valve can be used with onboard generators in addition to inboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the 0456DP7 valve?\u003c\/strong\u003e The item measures 3 x 9 x 12 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre smaller or larger hose sizes available in this same Perko valve?\u003c\/strong\u003e Yes, Perko offers this same inline flushing valve as the 0456DP4 for 5\/8 inch hose and the 0456DP6 for 1 inch hose, in addition to the 0456DP7 for 1-1\/4 inch hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread type does the 0456DP7 use?\u003c\/strong\u003e The 0456DP7 uses 1-1\/4 inch NPT threaded connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Perko 0456DP7 a genuine Perko part?\u003c\/strong\u003e Yes, the 0456DP7 is a genuine Perko manufacturer part number, not an aftermarket equivalent.\u003c\/p\u003e","brand":"Perko","offers":[{"title":"Default Title","offer_id":48991103189211,"sku":"PKO-0456DP7","price":122.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/51qjFPmC6CL.jpg?v=1784491580"},{"product_id":"sea-mule-flushmaster-quick-connect-flush-port-for-mercury-outboards-75-500-hp-four-stroke-racing-pro-cs-verado","title":"Sea Mule Flushmaster Quick Connect Flush Port for Mercury Outboards, 75-500 HP Four Stroke, Racing, Pro CS, Verado","description":"\u003cp\u003eThe Sea Mule Flushmaster Flush Port Quick Connect is a permanent replacement for the OEM flush port plug on Mercury outboard engines, giving you a fast, repeatable connection every time you flush the motor during routine maintenance. Instead of wrestling with the stock plug, you simply twist off the cap, connect a hose, flush the system, and reverse the steps when finished.\u003c\/p\u003e\u003cp\u003eThe quick connect is built from marine grade materials engineered to resist UV exposure and the corrosive effects of a marine environment, so it holds up to repeated outdoor use. A double O-ring design keeps the connection tight and leak free, and a secured locking cap guards against accidental disconnection while the engine is running or during storage.\u003c\/p\u003e\u003cp\u003eThis unit is compatible with Mercury Four Stroke, Racing, Pro CS, and Verado series outboards across all horsepower ratings from 75 HP to 500 HP, including V8 models. It installs into the engine cowling and locks in place with a quarter turn.\u003c\/p\u003e\u003cp\u003eThe kit includes a Mercury male quick connect, a female hose quick connect, a 90 degree elbow, a wrench, and a stainless steel hose clamp. The 90 degree elbow is provided to reroute the factory flush hose if the original routing is prone to kinking once the new fitting is installed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sea Mule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e SM-FMQCM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Mercury Four Stroke, Racing, Pro CS, and Verado series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower Range:\u003c\/strong\u003e 75 HP - 500 HP, including V8 models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Marine grade materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Design:\u003c\/strong\u003e Double O-ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCap:\u003c\/strong\u003e Secured locking cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironmental Resistance:\u003c\/strong\u003e Resistant to UV and marine corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Mercury male quick connect, female hose quick connect, 90 degree elbow, wrench, stainless steel hose clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor Flushers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Four Stroke, Racing, Pro CS, and Verado series outboards\u003c\/li\u003e\n\u003cli\u003e75 HP to 500 HP, including V8 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sea Mule Flushmaster SM-FMQCM fit?\u003c\/strong\u003e The SM-FMQCM fits Mercury Four Stroke, Racing, Pro CS, and Verado series outboards across all horsepower ratings from 75 HP to 500 HP, including V8 models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this replace the factory Mercury flush port plug?\u003c\/strong\u003e Yes, the Sea Mule Flushmaster quick connect is designed to permanently replace the OEM Mercury flush port plug so you get a quick connection every time you flush the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the quick connect seal against leaks?\u003c\/strong\u003e A double O-ring design on the SM-FMQCM creates a tight, leak free seal at the connection point.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the SM-FMQCM?\u003c\/strong\u003e The kit includes a Mercury male quick connect, a female hose quick connect, a 90 degree elbow, a wrench, and a stainless steel hose clamp.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy is there a 90 degree elbow in the kit?\u003c\/strong\u003e The 90 degree elbow is provided in case the factory Mercury flush hose kinks after the SM-FMQCM is installed; it lets you reroute the hose inside the cowling to avoid kinks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I install the Sea Mule Flushmaster flush port on a Mercury outboard?\u003c\/strong\u003e Remove the OEM Mercury flush port plug and the lanyard from the engine hose, thread in the SM-FMQCM flush port quick connect, reinstall it into the engine cowling, and turn it a quarter turn clockwise to lock it in place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the flush port quick connect made from?\u003c\/strong\u003e The SM-FMQCM is constructed from marine grade materials designed to resist UV exposure and corrosion from marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the locking cap work?\u003c\/strong\u003e The SM-FMQCM has a secured locking cap that protects against accidental disconnection during routine flushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this quick connect compatible with V8 Mercury outboards?\u003c\/strong\u003e Yes, the SM-FMQCM is compatible with Mercury outboards from 75 HP to 500 HP, including V8 models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this on a Verado outboard?\u003c\/strong\u003e Yes, the Sea Mule Flushmaster SM-FMQCM is compatible with the Mercury Verado series in addition to Four Stroke, Racing, and Pro CS engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat should I check if the flush hose kinks after installing the quick connect?\u003c\/strong\u003e Remove the cowling and inspect the flush hose; if it kinks, replace the Mercury 3\/4 inch female hose outlet with the included 90 degree elbow and orient it inside the cowling so no kinks remain.\u003c\/p\u003e","brand":"Sea Mule","offers":[{"title":"Default Title","offer_id":49028245225691,"sku":"SMF-SM-FMQCM","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Flushmaster-Flush-Port-Quick-Connect-for-Mercury-Outboards-Included-Components__62729.1739477309.500.750.jpg?v=1785165497"},{"product_id":"flushmaster-sm-fmqch-flush-port-quick-connect-for-honda-outboards","title":"Flushmaster SM-FMQCH Flush Port Quick Connect for Honda Outboards","description":"\u003cp\u003eThe Flushmaster SM-FMQCH is a flush port quick connect built to permanently replace the factory flush port plug on most Honda outboard engines. Once installed, it turns routine engine flushing into a simple twist-off, hose-on, twist-back-on process instead of fumbling with a removable plug every time the boat comes out of the water.\u003c\/p\u003e\u003cp\u003eThe fitting uses a double O-ring design to maintain a tight, leak-free seal at the connection point every time the hose is attached, and a secured locking cap guards against the connection working loose or disconnecting accidentally during flushing. The body is made from marine-grade materials engineered to resist UV exposure and the corrosive effects of salt and fresh water environments, so the fitting is meant to stay on the engine long term rather than being removed between uses.\u003c\/p\u003e\u003cp\u003eThe kit includes two female quick connects and one male quick connect. Installation involves removing the existing OEM Honda flush port plug, threading the Flushmaster female quick connect onto the male side of the port, threading the Flushmaster male quick connect into the female side, and attaching the second female quick connect to the end of the water supply hose.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Flushmaster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e SM-FMQCH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e Most Honda outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e 2 female quick connects, 1 male quick connect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Design:\u003c\/strong\u003e Double O-ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Cap:\u003c\/strong\u003e Secured locking cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Marine-grade materials, UV and corrosion resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Permanently replaces the OEM Honda flush port plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 860011567912\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMost Honda outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Flushmaster SM-FMQCH fit?\u003c\/strong\u003e The SM-FMQCH is designed to work with most Honda outboard engines, replacing the factory flush port plug with a permanent quick-connect fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the SM-FMQCH replace the OEM Honda flush port plug?\u003c\/strong\u003e Yes, the Flushmaster SM-FMQCH is designed to permanently replace the existing OEM flush port plug on a Honda outboard engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes in the box with the SM-FMQCH?\u003c\/strong\u003e The SM-FMQCH kit includes two female quick connects and one male quick connect fitting for the Honda outboard flush port.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do you install the Flushmaster Honda flush port quick connect?\u003c\/strong\u003e To install the SM-FMQCH, remove the factory flush port plug from the Honda outboard, thread the Flushmaster female quick connect onto the male threads of the flush port, thread the Flushmaster male quick connect into the female side of the port, and attach the second female quick connect to the end of the water supply hose.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the double O-ring seal on the SM-FMQCH work?\u003c\/strong\u003e Two O-rings at the connection point of the SM-FMQCH create a tight, leak-free seal each time the hose is connected during flushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the SM-FMQCH durable enough for saltwater use?\u003c\/strong\u003e Yes, the SM-FMQCH is constructed from marine-grade materials that resist UV exposure and the corrosive effects of marine environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat keeps the hose connection from disconnecting during flushing?\u003c\/strong\u003e A secured locking cap on the SM-FMQCH protects against accidental disconnection while the engine is being flushed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Flushmaster SM-FMQCH weigh?\u003c\/strong\u003e The SM-FMQCH weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Honda version of the Flushmaster quick connect the same as the Mercury or Yamaha version?\u003c\/strong\u003e No, the SM-FMQCH is the Honda-specific version of the Flushmaster flush port quick connect; Mercury, Suzuki, and Yamaha outboards use separate Flushmaster quick connect kits sized for those engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the SM-FMQCH a genuine Honda part?\u003c\/strong\u003e The SM-FMQCH is a Flushmaster aftermarket quick connect fitting made to permanently replace the OEM Honda flush port plug, not a Honda-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the SM-FMQCH?\u003c\/strong\u003e The UPC for the Flushmaster SM-FMQCH is 860011567912.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do you use the SM-FMQCH once it is installed?\u003c\/strong\u003e With the SM-FMQCH installed, flushing just requires twisting off the cap, connecting the hose, running the flush, then reversing the steps to disconnect.\u003c\/p\u003e","brand":"Sea Mule","offers":[{"title":"Default Title","offer_id":49028245323995,"sku":"SMF-SM-FMQCH","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/All-included-parts-with-Flushmaster-Flush-Port-Quick-Connect-for-Honda-Outboards__30567.1739477309.500.750.jpg?v=1785165497"},{"product_id":"seamule-flushmaster-flush-port-quick-connect-for-suzuki-outboards-25hp-350hp-four-stroke","title":"Seamule Flushmaster Flush Port Quick Connect for Suzuki Outboards 25hp-350hp Four Stroke","description":"\u003cp\u003eThe Seamule Flushmaster Flush Port Quick Connect is a permanent replacement for the OEM flush port plug on Suzuki outboard engines, giving you a fast, repeatable connection every time you flush your motor during routine maintenance. Instead of removing and reinstalling a threaded plug, simply twist off the cap, connect your flush hose to the quick connect fitting, run the flush cycle, then reverse the steps when finished.\u003c\/p\u003e\u003cp\u003eBuilt from marine grade materials, the Flushmaster is engineered to resist UV exposure and the corrosive effects of the marine environment over long-term use. A double O-ring design seals the connection to prevent leaks during flushing, and a secured locking cap protects the fitting from accidental disconnection between uses. The kit includes the Suzuki male quick connect fitting, a female hose quick connect, and a wrench for installation, and it can be installed on either the front or back of the engine.\u003c\/p\u003e\u003cp\u003eThis part is compatible with all four stroke Suzuki outboard engines from 25hp to 350hp, and it can also work with Yamaha 450 outboards. To install, remove the OEM Suzuki flush port plug, thread in the Seamule flush port quick connect, and use the included wrench to tighten it in place.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Seamule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e SM-FMQCS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Line:\u003c\/strong\u003e Flushmaster\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Brand:\u003c\/strong\u003e Suzuki\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Horsepower Range:\u003c\/strong\u003e 25 hp to 350 hp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e Four Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Compatibility:\u003c\/strong\u003e Yamaha 450hp outboards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Location:\u003c\/strong\u003e Front or back of engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Marine grade materials with UV and corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeal Design:\u003c\/strong\u003e Double O-ring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking Mechanism:\u003c\/strong\u003e Secured locking cap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Suzuki male quick connect, female hose quick connect, wrench\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 860009319141\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor Flushers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAll four stroke Suzuki outboard engines, 25hp to 350hp\u003c\/li\u003e\n\u003cli\u003eAlso compatible with Yamaha 450 outboards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Seamule Flushmaster SM-FMQCS fit?\u003c\/strong\u003e The SM-FMQCS fits all four stroke Suzuki outboard engines from 25hp to 350hp, and it can also work with Yamaha 450 outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this replace the OEM flush port plug permanently?\u003c\/strong\u003e Yes, the Flushmaster SM-FMQCS is designed to permanently replace the existing OEM flush port plug on the outboard, giving a quick connect fitting in its place.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan it be installed on either side of the engine?\u003c\/strong\u003e The SM-FMQCS can be installed on the front or back of the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the SM-FMQCS kit?\u003c\/strong\u003e The kit includes a Suzuki male quick connect fitting, a female hose quick connect, and a wrench for installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do you install the Flushmaster quick connect?\u003c\/strong\u003e Remove the OEM Suzuki flush port plug, thread in the Seamule flush port quick connect (SM-FMQCS), and use the included wrench to tighten it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the SM-FMQCS made from?\u003c\/strong\u003e It is constructed from marine grade materials that resist UV exposure and the corrosive effects of the marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the seal stay leak free?\u003c\/strong\u003e A double O-ring design on the SM-FMQCS ensures a tight, leak free seal every time it is connected.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the fitting come loose during flushing?\u003c\/strong\u003e No, a secured locking cap on the SM-FMQCS protects against accidental disconnection during routine flushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do you use the quick connect once installed?\u003c\/strong\u003e Twist off the cap, connect your flush hose to the quick connect, run the flush cycle, then reverse the steps to disconnect.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the SM-FMQCS weigh?\u003c\/strong\u003e The Seamule Flushmaster SM-FMQCS weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Seamule part or aftermarket?\u003c\/strong\u003e The SM-FMQCS is a Seamule Flushmaster branded part manufactured specifically as a quick connect flush port for Suzuki outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the SM-FMQCS work with two stroke Suzuki outboards?\u003c\/strong\u003e The SM-FMQCS is compatible with all four stroke Suzuki outboard engines from 25hp to 350hp; two stroke compatibility is not stated.\u003c\/p\u003e","brand":"Sea Mule","offers":[{"title":"Default Title","offer_id":49028245291227,"sku":"SMF-SM-FMQCS","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Included-components-with-Flushmaster-Flush-Port-Quick-Connect-for-Suzuki-Outboards-SM-FMQCS__60874.1739477310.500.750.jpg?v=1785165497"},{"product_id":"panther-flush-buddy-hd-inboard-motor-flusher-adjustable-19-to-30-1-4-inches","title":"Panther Flush Buddy HD Inboard Motor Flusher, Adjustable 19 to 30-1\/4 Inches","description":"\u003cp\u003eThe Panther Flush Buddy HD Inboard Motor Flusher is an easy-to-use tool for flushing an inboard engine while the boat is out of the water. It is designed for winterizing, routine maintenance, or any time you need to run an inboard engine without launching the boat. To use it, connect a garden hose to the unit, fit the cup over the water intake, and extend the leg-sealing cup until it seats against the hull. The adjustable leg extends from 19 inches to 30-1\/4 inches, allowing the Flush Buddy to accommodate different hull shapes and intake positions.\u003c\/p\u003e\u003cp\u003eThe Flush Buddy is constructed from aluminum and heavy-duty rubber, giving it the strength and durability needed for repeated use around a boat's hull and water intake. Its adjustable design makes it a practical solution for boat owners who need to winterize an inboard engine, perform maintenance flushes, or test-run a motor while the boat sits on a trailer or lift.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Panther\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 755000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Inboard Motor Flusher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum and Heavy-Duty Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Length:\u003c\/strong\u003e 19 inches to 30-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Dimensions:\u003c\/strong\u003e 6 x 22 x 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHose Connection:\u003c\/strong\u003e Standard garden hose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 628309278601\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Panther Flush Buddy HD used for?\u003c\/strong\u003e It is an inboard motor flusher used to run and flush an inboard engine's cooling system while the boat is out of the water, such as during winterizing, routine maintenance, or a test run.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do you install the Panther Flush Buddy on an inboard engine?\u003c\/strong\u003e Connect a garden hose to the Flush Buddy, fit the cup over the engine's water intake, and extend the leg-sealing cup until it seats firmly against the hull to create a water seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size range does the Panther 755000 flusher adjust to?\u003c\/strong\u003e The Panther Flush Buddy HD (part number 755000) extends from 19 inches to 30-1\/4 inches to fit different hull shapes and intake positions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Flush Buddy inboard flusher made from?\u003c\/strong\u003e It is made from aluminum and heavy-duty rubber for strength and durability during repeated flushing use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Panther Flush Buddy HD weigh?\u003c\/strong\u003e The Panther Flush Buddy HD inboard flusher weighs 1.6 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the Panther Flush Buddy?\u003c\/strong\u003e The Panther Flush Buddy measures 6 x 22 x 6 inches, with the leg extending from 19 inches to 30-1\/4 inches when in use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Panther Flush Buddy be used for winterizing a boat?\u003c\/strong\u003e Yes, the Panther Flush Buddy HD is designed for winterizing an inboard engine as well as general maintenance and test-running the motor out of the water.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Flush Buddy fit different hull and intake positions?\u003c\/strong\u003e Its adjustable leg-sealing cup extends from 19 inches to 30-1\/4 inches, letting the Panther 755000 accommodate various hull and water intake positions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hose does the Panther Flush Buddy connect to?\u003c\/strong\u003e The Panther Flush Buddy HD connects to a standard garden hose, which supplies water through the cup fitted over the engine's water intake.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Panther 755000 flusher only for inboard engines?\u003c\/strong\u003e Yes, the Panther Flush Buddy HD (part number 755000) is an inboard motor flusher, built to fit over an inboard engine's water intake rather than an outboard or sterndrive lower unit.\u003c\/p\u003e","brand":"Panther","offers":[{"title":"Default Title","offer_id":49028256858331,"sku":"PAN-755000","price":56.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/PAN-755000__66051.1747363872.500.750.jpg?v=1785165325"},{"product_id":"t-h-marine-qf-1k-quick-flush-kit-for-omc-outboard-engines","title":"T-H Marine QF-1K Quick Flush Kit for OMC Outboard Engines","description":"\u003cp\u003eThe T-H Marine QF-1K Quick Flush Kit is a motor flusher designed to connect a garden hose to an OMC outboard engine for flushing the cooling system after saltwater or brackish-water use. Regular flushing removes salt, sand, and debris from the water passages, helping to prevent corrosion and mineral buildup that can damage the impeller, water pump, and internal cooling passages over time. The kit is molded from durable gray plastic and is sized for easy onboard storage or garage use, making it simple to keep on hand for routine post-trip maintenance.\u003c\/p\u003e\u003cp\u003eThis flush kit is built for OMC outboard motors and provides a quick, no-drill connection point for attaching a standard garden hose. It is a straightforward accessory for boat owners who want to extend engine life with consistent freshwater flushing after every outing, particularly in saltwater environments where corrosion risk is highest.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e T-H Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e QF-1K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Omc Quick Flush Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor Flushers\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 Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions (L x W x H):\u003c\/strong\u003e 6.5 x 3.6 x 1.4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 733572010602\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the T-H Marine QF-1K used for?\u003c\/strong\u003e The QF-1K is a quick flush kit that lets you connect a garden hose to an OMC outboard engine to flush the cooling system after use, removing salt and debris to help prevent corrosion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the QF-1K fit OMC outboard engines?\u003c\/strong\u003e Yes, the T-H Marine QF-1K is designed for OMC outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the QF-1K flush kit made of?\u003c\/strong\u003e It is made of gray plastic, sized for easy handling and storage on the boat or in a garage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the QF-1K weigh?\u003c\/strong\u003e The T-H Marine QF-1K weighs 0.2 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of the QF-1K flush kit?\u003c\/strong\u003e The item measures 6.5 x 3.6 x 1.4 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many pieces come in the QF-1K kit?\u003c\/strong\u003e The QF-1K quick flush kit includes 1 item.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy should I flush my outboard engine after each use?\u003c\/strong\u003e Flushing an OMC outboard with a kit like the QF-1K after each outing removes salt, sand, and debris from the cooling passages, which helps protect the water pump and impeller from corrosion and buildup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the QF-1K compatible with a standard garden hose?\u003c\/strong\u003e Yes, the QF-1K quick flush kit is designed to connect to a standard garden hose for flushing OMC outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the T-H Marine QF-1K?\u003c\/strong\u003e The QF-1K flush kit is gray.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the T-H Marine QF-1K genuine T-H Marine equipment?\u003c\/strong\u003e Yes, the QF-1K is a genuine T-H Marine motor flusher, identified by part number QF-1K.\u003c\/p\u003e","brand":"T-H Marine","offers":[{"title":"Default Title","offer_id":49033323708635,"sku":"T-H-QF-1K-DP","price":25.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/51xItu6vx2L.jpg?v=1785244692"},{"product_id":"t-h-marine-quick-flush-kit-qf-2k-for-mercury-and-yamaha-outboard-engines-blue","title":"T-H Marine Quick Flush Kit QF-2K for Mercury and Yamaha Outboard Engines, Blue","description":"\u003cp\u003eThe T-H Marine Quick Flush Kit QF-2K is a transom-mount engine flushing attachment built to connect a garden hose to a Mercury or Yamaha outboard engine for flushing after use in saltwater or brackish water. Regularly flushing the cooling system helps clear out salt, sand, and debris from the engine's water passages, which supports long-term engine reliability. The kit is molded from durable plastic in a blue finish and is designed for gasoline outboard engines. It mounts to the transom for quick, repeatable connection each time the boat is used, making the flushing routine faster and more consistent than removing hoses or using a flush bag. This kit is intended for boat owners who want a permanent, dedicated flush point rather than a one-time-use adapter. Because it is purpose-built for Mercury and Yamaha outboard applications, it provides a direct fit without modification for those engine families. The compact, lightweight design keeps it out of the way when not in use while remaining ready for the next flush cycle.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e T-H Marine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e QF-2K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Motor Flushers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Transom Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type:\u003c\/strong\u003e Gasoline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Mercury and Yamaha outboard engines.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the QF-2K flush kit fit?\u003c\/strong\u003e The T-H Marine QF-2K Quick Flush Kit is designed for Mercury and Yamaha outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the QF-2K mount to the boat?\u003c\/strong\u003e This flush kit uses a transom mount design, so it attaches directly to the boat's transom for repeated use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the QF-2K flush kit?\u003c\/strong\u003e The QF-2K is finished in blue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the T-H Marine flush kit made from?\u003c\/strong\u003e The QF-2K is made from plastic, a lightweight and corrosion-resistant material choice for a hose-connected flush fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the QF-2K weigh?\u003c\/strong\u003e The QF-2K Quick Flush Kit weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the QF-2K suitable for gasoline outboard engines?\u003c\/strong\u003e Yes, the QF-2K is designed for gasoline fuel type outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy should I flush my outboard engine with a kit like the QF-2K?\u003c\/strong\u003e Flushing an outboard with a dedicated kit such as the QF-2K helps clear salt and debris from the cooling passages after use, which supports engine reliability over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the QF-2K be left permanently mounted on the boat?\u003c\/strong\u003e Yes, the transom mount design of the QF-2K is intended for a permanent, dedicated connection point rather than a temporary attachment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the QF-2K work with a standard garden hose?\u003c\/strong\u003e The QF-2K Quick Flush Kit is designed to connect a hose to the outboard engine for flushing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the T-H Marine QF-2K?\u003c\/strong\u003e The QF-2K Quick Flush Kit is a single-unit transom-mount flushing attachment.\u003c\/p\u003e","brand":"T-H Marine","offers":[{"title":"Default Title","offer_id":49033323741403,"sku":"T-H-QF-2K-DP","price":25.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/7134YJMWonL.jpg?v=1785244692"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/collections\/5293.jpg?v=1785356943","url":"https:\/\/www.goodvibesmarina.com\/collections\/gvcat-engine-parts-systems-cooling-system-cooling-hoses-fittings.oembed","provider":"Good Vibes Marina","version":"1.0","type":"link"}