{"product_id":"head-gasket-for-evinrude-johnson-2-cylinder-outboards-replaces-oem-203130-sierra-18-3841-2","title":"Sierra Head Gasket 18-3841-2, Replaces GLM 34010, Evinrude\/Johnson 203130","description":"\u003cp\u003eThe Sierra 18-3841-2 Head Gasket is a replacement head gasket engineered to meet or exceed the quality of the original equipment part it replaces. It seals the mating surface between the cylinder head and the powerhead block, maintaining proper compression and preventing coolant or combustion leakage on applicable outboard engines. Each unit ships as a single gasket, ready to install during a head gasket replacement, top-end rebuild, or routine maintenance service.\u003c\/p\u003e\u003cp\u003eThis gasket is built to Sierra's quality standard for marine engine components, giving boat owners and marine technicians a dependable alternative to sourcing the original manufacturer part. It is designed as a direct equivalent, cross-referencing to GLM 34010 and Evinrude\/Johnson 203130, so it fits in place of those OEM and aftermarket numbers without modification.\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 18-3841-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Head Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Head Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 Count\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.12 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282194031\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCross-references to GLM 34010\u003c\/li\u003e\n\u003cli\u003eCross-references to Evinrude\/Johnson 203130\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 34010\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 203130\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3841-2 Head Gasket fit?\u003c\/strong\u003e The Sierra 18-3841-2 Head Gasket cross-references to GLM 34010 and Evinrude\/Johnson 203130, so it is a direct equivalent for applications calling for either of those part numbers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3841-2 the same as GLM 34010?\u003c\/strong\u003e Yes, GLM 34010 is a listed cross-reference for the Sierra 18-3841-2 Head Gasket, meaning the two part numbers are equivalent for fitment purposes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-3841-2 replace Evinrude\/Johnson 203130?\u003c\/strong\u003e Yes, Evinrude\/Johnson 203130 is one of the OEM numbers that the Sierra 18-3841-2 Head Gasket replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one order of part 18-3841-2?\u003c\/strong\u003e One order includes a single Head Gasket, listed as a unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3841-2 Head Gasket weigh?\u003c\/strong\u003e It weighs 0.12 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3841-2 an OEM part or aftermarket?\u003c\/strong\u003e The 18-3841-2 is a Sierra-brand replacement gasket built to meet or exceed the quality of the original equipment part it replaces, rather than being sourced from the original engine manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-3841-2?\u003c\/strong\u003e The order includes one Sierra Head Gasket, part number 18-3841-2, with no additional hardware or components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the 18-3841-2 gasket for a head gasket replacement job?\u003c\/strong\u003e Yes, the Sierra 18-3841-2 is designed as a head gasket replacement part, sealing the cylinder head to the powerhead during a gasket swap or top-end service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-3841-2 Head Gasket?\u003c\/strong\u003e The UPC for this Sierra Head Gasket is 808282194031.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-3841-2 work if my parts book lists 203130 instead?\u003c\/strong\u003e Yes, 203130 (Evinrude\/Johnson) is a direct cross-reference to the Sierra 18-3841-2 Head Gasket, so it will fit the same application.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988166029531,"sku":"SIE-18-3841-2","price":7.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3841-2_lg__62949.1558127213.500.750.jpg?v=1785188081","url":"https:\/\/www.goodvibesmarina.com\/products\/head-gasket-for-evinrude-johnson-2-cylinder-outboards-replaces-oem-203130-sierra-18-3841-2","provider":"Good Vibes Marina","version":"1.0","type":"link"}