{"product_id":"sierra-18-2546-9-thermostat-cover-gasket-replaces-johnson-evinrude-321184-fits-v-6-outboards-pack-of-2","title":"Sierra 18-2546-9 Thermostat Gasket for Johnson\/Evinrude V6 Outboard Engines, OEM 321184, Pack of 2","description":"\u003cp\u003eThe Sierra 18-2546-9 Thermostat Gasket seals the thermostat cover on Johnson\/Evinrude V6 outboard engines, preventing coolant leaks at the cover-to-housing joint so the cooling system maintains proper pressure and circulation. Each package contains two gaskets, giving you a spare on hand for the next service interval or a second engine. The gasket is molded from plastic and is designed as a direct fit for the thermostat cover assembly on applicable V6 outboards, correlating to OEM part number 321184.\u003c\/p\u003e\u003cp\u003eThis gasket is a wear item that should be replaced any time the thermostat cover is removed, whether during a thermostat replacement, cooling system inspection, or general engine service, since reusing a compressed or hardened gasket can allow coolant to seep past the cover and lead to overheating or reduced coolant flow. Installation is straightforward: remove the thermostat cover, clean the mating surfaces of old gasket material, position the new 18-2546-9 gasket, and reinstall the cover per the engine's service procedure. Sierra manufactures this part to meet or exceed the specifications of the original equipment part it replaces, making it a reliable choice for engine owners and marine service shops maintaining Johnson\/Evinrude V6 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 18-2546-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Thermostat Cover Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2 gaskets per pack\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 No Color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e Johnson\/Evinrude V6 outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 321184\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282162818\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude V6 outboard engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e321184\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2546-9 gasket fit?\u003c\/strong\u003e The Sierra 18-2546-9 is designed for the thermostat cover on Johnson\/Evinrude V6 outboard engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a pack?\u003c\/strong\u003e Each package of the Sierra 18-2546-9 contains two thermostat cover gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2546-9 gasket the same as OEM part 321184?\u003c\/strong\u003e Yes, the Sierra 18-2546-9 corresponds to OEM part number 321184 and is built to meet or exceed the original equipment specification.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the thermostat gasket made from?\u003c\/strong\u003e The 18-2546-9 gasket is made of plastic, matching the material used for the original thermostat cover gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace this gasket?\u003c\/strong\u003e Replace the 18-2546-9 gasket any time the thermostat cover is removed, such as during a thermostat swap or cooling system service, since a reused gasket can leak coolant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the gasket weigh?\u003c\/strong\u003e The Sierra 18-2546-9 thermostat gasket pack weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e The 18-2546-9 is a genuine Sierra part manufactured to meet or exceed the specification of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need any other parts to complete a thermostat cover reseal?\u003c\/strong\u003e The 18-2546-9 package supplies the two thermostat cover gaskets; the thermostat itself and other cover hardware are separate parts not included in this package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the gasket?\u003c\/strong\u003e The Sierra 18-2546-9 gasket has no distinct color, consistent with its plastic construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs installation of the 18-2546-9 gasket difficult?\u003c\/strong\u003e No special tools are needed; installation involves removing the thermostat cover, cleaning the mating surfaces, and fitting the new 18-2546-9 gasket before reinstalling the cover.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988107047131,"sku":"SIE-18-2546-9","price":2.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2546-9__83944.1722367523.500.750.jpg?v=1785188339","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2546-9-thermostat-cover-gasket-replaces-johnson-evinrude-321184-fits-v-6-outboards-pack-of-2","provider":"Good Vibes Marina","version":"1.0","type":"link"}