{"product_id":"exhaust-manifold-gasket-set-for-mercruiser-stern-drive-sierra-18-4349-interchanges-glm-39880-mallory-9-61455","title":"Sierra 18-4349 Exhaust Manifold Gasket Set, Interchangeable with GLM 39880 and Mallory 9-61455","description":"\u003cp\u003eThe Sierra 18-4349 Exhaust Manifold Gasket Set is a complete gasket kit for marine stern drive exhaust manifolds, engineered to seal the manifold-to-block and elbow-to-manifold joints against the extreme heat and vibration of continuous marine operation. Each kit contains four gaskets: two 18-0872 exhaust manifold gaskets and two 18-0897 exhaust elbow gaskets, giving you everything needed to reseal both manifold joints in one package rather than sourcing gaskets separately. Sierra engineers this set to meet or exceed the performance of the original equipment part it replaces, so it installs and seals the same way the factory gasket did.\u003c\/p\u003e\u003cp\u003eThis gasket set is designed as a direct interchange for GLM 39880 and Mallory 9-61455, so if your parts manual or old gasket carries either of those numbers, the Sierra 18-4349 is the correct replacement. Use it any time you are servicing exhaust manifolds or elbows during a rebuild, replacing a leaking gasket, or performing routine maintenance on a stern drive exhaust system.\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 18-4349\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Manifold Gasket Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContains:\u003c\/strong\u003e (2) 18-0872 Exhaust Manifold Gasket, (2) 18-0897 Exhaust Elbow Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.38 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable With:\u003c\/strong\u003e GLM 39880, Mallory 9-61455\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eSerial number range 6218462-B525981\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 39880\u003c\/li\u003e\n\u003cli\u003eMallory 9-61455\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-4349 gasket set include?\u003c\/strong\u003e The Sierra 18-4349 kit includes four gaskets total: two 18-0872 exhaust manifold gaskets and two 18-0897 exhaust elbow gaskets, covering both manifold sealing points in a single package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4349 the same as GLM 39880?\u003c\/strong\u003e Yes, the Sierra 18-4349 is interchangeable with GLM 39880, so it can be used as a direct replacement wherever that number is specified.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-4349 cross-reference to a Mallory part number?\u003c\/strong\u003e It does. The Sierra 18-4349 Exhaust Manifold Gasket Set is interchangeable with Mallory 9-61455.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-4349 gasket set weigh?\u003c\/strong\u003e The Sierra 18-4349 Exhaust Manifold Gasket Set weighs 0.38 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat serial number range applies to the 18-4349 gasket set?\u003c\/strong\u003e The Sierra 18-4349 is specified for serial number range 6218462-B525981.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the manifold and elbow gaskets sold separately, or only as a set?\u003c\/strong\u003e The 18-4349 is sold as a complete set containing both the 18-0872 exhaust manifold gaskets and 18-0897 exhaust elbow gaskets, so both joint types are covered in one purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-4349 an OEM or aftermarket part?\u003c\/strong\u003e The Sierra 18-4349 is an aftermarket gasket set engineered to meet or exceed the performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-4349 be used for a full exhaust manifold rebuild?\u003c\/strong\u003e Yes, since it includes both manifold gaskets and elbow gaskets, the 18-4349 set provides the gaskets needed to reseal the manifold assembly during a rebuild or gasket replacement job.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in one Sierra 18-4349 kit?\u003c\/strong\u003e One Sierra 18-4349 kit contains four gaskets: two 18-0872 exhaust manifold gaskets and two 18-0897 exhaust elbow gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-0872 and 18-0897 gaskets included in this set?\u003c\/strong\u003e Within the Sierra 18-4349 set, the 18-0872 gaskets seal the exhaust manifold joint while the 18-0897 gaskets seal the exhaust elbow joint, and both are included as a pair each.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988194144475,"sku":"SIE-18-4349","price":30.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-4349_lg__11576.1558128258.500.750.jpg?v=1785189181","url":"https:\/\/www.goodvibesmarina.com\/products\/exhaust-manifold-gasket-set-for-mercruiser-stern-drive-sierra-18-4349-interchanges-glm-39880-mallory-9-61455","provider":"Good Vibes Marina","version":"1.0","type":"link"}