{"product_id":"sierra-18-2845-valve-cover-gasket-for-gm-305-350-cid-5-0l-5-7l-v-8-replaces-mercruiser-27-11999-and-chris-craft-16-11-01236","title":"Sierra 18-2845 Valve Cover Gasket for GM 305\/350 CID 5.0L and 5.7L Engines","description":"\u003cp\u003eThe Sierra 18-2845 is a white valve cover gasket engineered as a direct fit for GM 305\/350 CID (5.0L and 5.7L) marine engines. It seals the mating surface between the valve cover and cylinder head to prevent oil leaks and keep contaminants out of the valvetrain, and it is built to meet or exceed the specification of the original equipment part it replaces. The gasket is manufactured from glass material in a round profile designed to match the factory valve cover bolt pattern and sealing surface on these applications.\u003c\/p\u003e\u003cp\u003eBecause valve cover gaskets are a routine maintenance and repair item, this part is commonly replaced whenever a valve cover is removed for service or when an existing gasket has hardened, cracked, or begun to weep oil. It is cross-referenced to a wide range of OEM and aftermarket equivalents, making it easy to match against a part already on the engine. As a Sierra-manufactured component, it is backed by Sierra's standard customer satisfaction warranty.\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 18-2845\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Valve Cover Gasket\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\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999313539\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.19 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eGM 305\/350 CID (5.0L and 5.7L) engines\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eChris-Craft 16.11-01236\u003c\/li\u003e\n\u003cli\u003eCrusader 91351\u003c\/li\u003e\n\u003cli\u003eGLM 30353\u003c\/li\u003e\n\u003cli\u003eMallory 9-61300\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 27-11999\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 27-34043\u003c\/li\u003e\n\u003cli\u003eMercruiser Stern Drive 27-52202\u003c\/li\u003e\n\u003cli\u003eMercruiser FI1101236\u003c\/li\u003e\n\u003cli\u003eMercruiser FI5000161\u003c\/li\u003e\n\u003cli\u003eOMC Stern Drive 912965\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-2845 valve cover gasket fit?\u003c\/strong\u003e The 18-2845 is designed for GM 305\/350 CID (5.0L and 5.7L) marine engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2845 an OEM part or aftermarket equivalent?\u003c\/strong\u003e It is a Sierra-manufactured aftermarket gasket built to meet or exceed the original equipment part it replaces, rather than an OEM-branded piece.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2845 valve cover gasket made from?\u003c\/strong\u003e This gasket is made from glass material, formed into a round profile that matches the factory valve cover sealing surface.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2845 gasket?\u003c\/strong\u003e It is white, which is the standard color Sierra produces this gasket in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2845 valve cover gasket weigh?\u003c\/strong\u003e The 18-2845 weighs 0.19 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-2845 cross-reference to?\u003c\/strong\u003e It is interchangeable with Chris-Craft 16.11-01236, Crusader 91351, GLM 30353, Mallory 9-61300, Mercruiser Stern Drive 27-11999, 27-34043, and 27-52202, Mercruiser FI1101236 and FI5000161, and OMC Stern Drive 912965.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes one 18-2845 gasket cover both valve covers?\u003c\/strong\u003e Each 18-2845 is a single valve cover gasket, so a typical V-8 installation with two valve covers requires two gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the valve cover gasket on my GM 305\/350 marine engine?\u003c\/strong\u003e Replace the 18-2845 whenever the valve cover is removed for service, or sooner if the existing gasket has hardened, cracked, or is showing signs of an oil leak at the cover seam.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2845 covered under warranty?\u003c\/strong\u003e Yes, the Sierra 18-2845 valve cover gasket is covered under Sierra's standard customer satisfaction warranty, as are all Sierra parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2845?\u003c\/strong\u003e You receive one Sierra 18-2845 white valve cover gasket; it does not include mounting hardware or other engine gaskets.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988131197147,"sku":"SIE-18-2845","price":24.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2845_lg__37220.1558122916.500.750.jpg?v=1785188074","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2845-valve-cover-gasket-for-gm-305-350-cid-5-0l-5-7l-v-8-replaces-mercruiser-27-11999-and-chris-craft-16-11-01236","provider":"Good Vibes Marina","version":"1.0","type":"link"}