{"product_id":"sierra-18-2912-1-exhaust-manifold-gasket-replaces-oem-27-53354-mercruiser-exhaust-manifold-application","title":"Sierra Exhaust Manifold Gasket 18-2912-1, Replaces 27-53354","description":"\u003cp\u003eThe Sierra 18-2912-1 is an exhaust manifold gasket engineered to seal the mating surface between the exhaust manifold and the engine block on marine engines. It is designed as a direct-fit replacement for OEM gasket 27-53354, restoring a tight seal that prevents exhaust leaks, loss of cooling water pressure, and the corrosion that follows a failed gasket. Installing a fresh manifold gasket during routine maintenance or whenever the manifold is removed for inspection, cleaning, or replacement helps protect surrounding components from exhaust gas and water intrusion.\u003c\/p\u003e\u003cp\u003eThis gasket is supplied in a white finish and is sold individually. Sierra manufactures its exhaust manifold gaskets to marine-grade tolerances so the part seats correctly against the manifold flange without leaks under the heat cycling and vibration typical of inboard and sterndrive engine operation. Because exhaust manifold gaskets are wear items that lose their seal over time, replacing the gasket any time the manifold is disturbed is standard practice to avoid a repeat leak shortly after reassembly.\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 18-2912-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Manifold Gasket\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 0.29 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282365844\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Sold individually\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits applications that use OEM exhaust manifold gasket 27-53354. Confirm your engine's original gasket part number against 27-53354 before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-53354\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2912-1 gasket replace?\u003c\/strong\u003e The Sierra 18-2912-1 exhaust manifold gasket is a direct replacement for OEM gasket 27-53354.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2912-1 gasket sold as a single gasket or a set?\u003c\/strong\u003e The 18-2912-1 is sold individually as one exhaust manifold gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2912-1 exhaust manifold gasket weigh?\u003c\/strong\u003e It weighs 0.29 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-2912-1 gasket?\u003c\/strong\u003e This gasket has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2912-1 gasket?\u003c\/strong\u003e The UPC is 808282365844.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace this exhaust manifold gasket?\u003c\/strong\u003e Replace the 18-2912-1 gasket any time the exhaust manifold is removed, or if you notice exhaust leaks, unusual exhaust noise, or corrosion around the manifold-to-block joint, since a used gasket rarely reseals reliably once disturbed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2912-1 gasket fit my engine?\u003c\/strong\u003e The 18-2912-1 fits applications that originally used OEM gasket 27-53354; check your engine's existing gasket part number against 27-53354 to confirm fit before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-2912-1 a genuine OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-2912-1 is a Sierra-manufactured replacement gasket, cross-referenced to OEM part 27-53354, rather than a part sourced from the original engine manufacturer.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-2912-1 exhaust manifold gasket made from?\u003c\/strong\u003e The dossier for the 18-2912-1 does not specify the gasket material.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2912-1 gasket come with installation hardware?\u003c\/strong\u003e No, the 18-2912-1 is the gasket only; no bolts, studs, or additional hardware are included.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does an exhaust manifold need a gasket at all?\u003c\/strong\u003e The gasket seals the joint between the exhaust manifold and the engine block, preventing exhaust gas and cooling water leaks that can otherwise damage surrounding engine components.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988132999387,"sku":"SIE-18-2912-1","price":94.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2912_lg__28911.1558124672.500.750.jpg?v=1785188719","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2912-1-exhaust-manifold-gasket-replaces-oem-27-53354-mercruiser-exhaust-manifold-application","provider":"Good Vibes Marina","version":"1.0","type":"link"}