{"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","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-0871-1-service-valve-with-o-ring-replaces-johnson-evinrude-175158-fits-outboards-with-primer-valve","provider":"Good Vibes Marina","version":"1.0","type":"link"}