{"product_id":"sierra-18-2833-9-exhaust-elbow-gasket-2-pack-replaces-mercruiser-27-997772-fits-mcm-120-140-3-0l-470-165-gm-ford-v-8","title":"Sierra 18-2833-9 Exhaust Elbow Gasket, Replaces 27-99777-2, Fits MCM 120\/140\/470\/GM V-8 Small Block\/Ford V-8, Pack of 2","description":"\u003cp\u003eThe Sierra 18-2833-9 Exhaust Elbow Gasket is a round replacement gasket sold in a pack of two for sealing the exhaust elbow-to-manifold joint on inboard and stern drive engines. It is a direct cross-reference to OEM gasket 27-99777-2 and is manufactured to meet or exceed the performance of the original equipment part it replaces, making it a reliable choice for routine exhaust system maintenance and elbow replacement.\u003c\/p\u003e\u003cp\u003eThis gasket is used with Sierra manifold elbows 18-1971 and 18-1978, and it is the same gasket included in the Sierra 18-4362 mounting kit. It is also the correct gasket for the 18-4008 block off plate used on manifolds 18-1958-1 and 18-1962-1, which requires two of these gaskets per installation. Because it ships as a pack of two, a single purchase covers both exhaust elbow gaskets needed for a complete job.\u003c\/p\u003e\u003cp\u003eThe 18-2833-9 gasket fits a broad range of marine engines, including Mercruiser MCM 120 (1993 and newer), 140\/3.0L, 470, and 165 in-line 6 cylinder engines, GM V-8 small block engines (1982 and older), and Ford V-8 engines. It weighs 0.08 pounds per pack and is backed by a 90-day Sierra 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 18-2833-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\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 808282163402\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 27-99777-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Elbows:\u003c\/strong\u003e 18-1971, 18-1978\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Mounting Kit:\u003c\/strong\u003e 18-4362\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 90 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercruiser MCM 120 (1993 and newer)\u003c\/li\u003e\n\u003cli\u003eMercruiser 140\/3.0L\u003c\/li\u003e\n\u003cli\u003eMercruiser 470\u003c\/li\u003e\n\u003cli\u003eMercruiser 165 in-line 6 cylinder\u003c\/li\u003e\n\u003cli\u003eGM V-8 small block (1982 and older)\u003c\/li\u003e\n\u003cli\u003eFord V-8 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e27-99777-2\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-2833-9 exhaust elbow gasket fit?\u003c\/strong\u003e The Sierra 18-2833-9 exhaust elbow gasket fits Mercruiser MCM 120 (1993 and newer), 140\/3.0L, 470, and 165 in-line 6 cylinder engines, GM V-8 small block engines (1982 and older), and Ford V-8 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in the package?\u003c\/strong\u003e This listing is sold as a pack of two 18-2833-9 elbow gaskets, enough to service both exhaust elbows in a typical installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-2833-9 replace?\u003c\/strong\u003e 18-2833-9 is the direct cross-reference equivalent to OEM part 27-99777-2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich exhaust elbows use this gasket?\u003c\/strong\u003e The 18-2833-9 gasket is used with Sierra manifold elbows 18-1971 and 18-1978, and it is also the gasket included in the 18-4362 mounting kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is a genuine Sierra International part, manufactured to meet or exceed the performance of the original equipment gasket it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2833-9 gasket weigh?\u003c\/strong\u003e The 18-2833-9 gasket pack weighs 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape is the gasket?\u003c\/strong\u003e The Sierra 18-2833-9 exhaust elbow gasket is round in shape.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the block off plate use this gasket too?\u003c\/strong\u003e Yes, the 18-4008 block off plate used with manifolds 18-1958-1 and 18-1962-1 requires two 18-2833 elbow gaskets, matching this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the warranty on this gasket?\u003c\/strong\u003e Sierra backs the 18-2833-9 exhaust elbow gasket with a 90-day warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2833-9 gasket compatible with GM V-8 small block engines?\u003c\/strong\u003e Yes, the 18-2833-9 gasket fits GM V-8 small block engines built in 1982 and older.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988131262683,"sku":"SIE-18-2833-9","price":8.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Sierra-18-2833-9-MerCruiser-Exhaust-Elbow-Gasket__20810.1737872629.500.750.jpg?v=1785189120","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2833-9-exhaust-elbow-gasket-2-pack-replaces-mercruiser-27-997772-fits-mcm-120-140-3-0l-470-165-gm-ford-v-8","provider":"Good Vibes Marina","version":"1.0","type":"link"}