{"product_id":"carb-mounting-gasket-27-48164-1-for-mercury-outboard-carburetor-sierra-18-2802","title":"Sierra 18-2802 Carburetor Flange Gasket, Replaces 27-48164 - Mercury Outboard, Pack of 2","description":"\u003cp\u003eThe Sierra 18-2802 is a carburetor flange gasket engineered as a direct replacement for Mercury outboard engines. It seals the mating surface between the carburetor and the intake manifold flange, preventing air and fuel leaks that can cause rough idle, lean running conditions, or hard starting. Each package contains 2 gaskets, giving you a spare on hand for a future service or enough to cover a twin-carburetor setup in one order.\u003c\/p\u003e\u003cp\u003eThis gasket is sold under the Sierra part number 18-2802 and cross-references directly to the original Mercury numbers 27-48164 and 27-481641, so it can be ordered with confidence as a like-for-like replacement during carburetor removal, rebuild, or gasket-set service. At 0.04 pounds, it is a lightweight, thin-profile flange gasket sized to fit its intended carburetor mounting flange 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 18-2802\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Carburetor Flange Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2 gaskets per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 27-48164, 27-481641\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Mercury outboard engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282258054\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Mercury outboard engines.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e27-48164\u003c\/li\u003e\n\u003cli\u003e27-481641\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2802 gasket fit?\u003c\/strong\u003e The Sierra 18-2802 carburetor flange gasket is designed for Mercury outboard engines, sealing the carburetor-to-intake-manifold flange joint.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers does part 18-2802 replace?\u003c\/strong\u003e Sierra 18-2802 replaces Mercury OEM numbers 27-48164 and 27-481641, so either original number can be used to confirm this is the correct gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one package of 18-2802?\u003c\/strong\u003e Each package of the Sierra 18-2802 carburetor flange gasket contains 2 gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2802 gasket weigh?\u003c\/strong\u003e The Sierra 18-2802 carburetor flange gasket weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2802 a genuine Mercury part or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-2802 is a Sierra-branded replacement gasket manufactured to match the fit and function of Mercury OEM numbers 27-48164 and 27-481641, rather than a part sold under the Mercury brand itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this carburetor flange gasket?\u003c\/strong\u003e This gasket, Sierra part 18-2802, should be replaced any time the carburetor is removed from a Mercury outboard for cleaning, rebuilding, or service, since the original gasket material can tear or lose its seal once disturbed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat happens if this gasket fails or is left out during reassembly?\u003c\/strong\u003e A failed or missing 18-2802 flange gasket at the carburetor-to-manifold joint can allow air or fuel leaks, leading to a rough idle, lean-running condition, or hard starting on the affected Mercury outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2802 package include enough gaskets for a twin-carburetor engine?\u003c\/strong\u003e Yes, the package of 2 gaskets included with Sierra 18-2802 is sized to cover a twin-carburetor application in a single order, or to leave a spare for a future service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I order this part using the Mercury number instead of the Sierra number?\u003c\/strong\u003e Yes, since Sierra 18-2802 replaces Mercury numbers 27-48164 and 27-481641, either the Sierra or original Mercury number will point to the same gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2802 gasket?\u003c\/strong\u003e An order of Sierra 18-2802 includes one package containing 2 carburetor flange gaskets; no other hardware or components are included.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988113436891,"sku":"SIE-18-2802","price":0.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2802_lg__12986.1558124264.500.750.jpg?v=1785329145","url":"https:\/\/www.goodvibesmarina.com\/products\/carb-mounting-gasket-27-48164-1-for-mercury-outboard-carburetor-sierra-18-2802","provider":"Good Vibes Marina","version":"1.0","type":"link"}