{"product_id":"sierra-18-2500-9-exhaust-cover-gasket-replaces-mercury-27-85490-2-fits-35-40-hp-outboards-2-pack","title":"Sierra 18-2500-9 Exhaust Cover Gasket, Replaces Mercury 27-85493, Pack of 2","description":"\u003cp\u003eThe Sierra 18-2500-9 Exhaust Cover Gasket is a round, multi-colored gasket engineered to seal the exhaust cover on applicable Mercury outboard engines, sold in a pack of 2 so both sides can be replaced together. It is built to meet or exceed the quality of the original equipment part it replaces, giving installers a dependable seal against exhaust gas and water leakage at the cover joint. Each gasket is manufactured by Sierra International, a long-established supplier of marine replacement parts, and is cross-referenced to GLM 32010 and Mercury part numbers 27-85493, 27-52893, and 27-72505, making it straightforward to match against the OEM part being replaced. Because gaskets compress and lose their sealing ability over time and with repeated heat cycling, replacing the exhaust cover gasket during routine maintenance or whenever the exhaust cover is removed helps prevent leaks and corrosion around the cover mounting surface. At 0.32 pounds for the pack, this is a lightweight, low-cost maintenance item worth keeping on hand for outboard servicing.\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 18-2500-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e 2 gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.32 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Multi-colored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Mercury Outboard Gaskets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282162481\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 32010\u003c\/li\u003e\n\u003cli\u003eMercury 27-85493\u003c\/li\u003e\n\u003cli\u003eMercury 27-52893\u003c\/li\u003e\n\u003cli\u003eMercury 27-72505\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2500-9 Exhaust Cover Gasket fit?\u003c\/strong\u003e The Sierra 18-2500-9 is designed as a replacement exhaust cover gasket for Mercury outboard engines that originally used Mercury gasket numbers 27-85493, 27-52893, or 27-72505.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2500-9 the same as GLM 32010?\u003c\/strong\u003e Yes, GLM 32010 is a cross-referenced equivalent to the Sierra 18-2500-9 Exhaust Cover Gasket, so either number can be used to identify the same part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gaskets come in a pack of the 18-2500-9?\u003c\/strong\u003e Each pack of the Sierra 18-2500-9 Exhaust Cover Gasket contains 2 gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat Mercury part numbers does the 18-2500-9 replace?\u003c\/strong\u003e It replaces Mercury 27-85493, Mercury 27-52893, and Mercury 27-72505.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the exhaust cover gasket pack weigh?\u003c\/strong\u003e The Sierra 18-2500-9 pack of 2 gaskets weighs 0.32 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shape and color is the 18-2500-9 gasket?\u003c\/strong\u003e The Sierra 18-2500-9 Exhaust Cover Gasket is round and multi-colored.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2500-9 a genuine Mercury part or an aftermarket replacement?\u003c\/strong\u003e It is a Sierra-branded aftermarket replacement gasket, manufactured to meet or exceed the quality of the original Mercury equipment it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace the exhaust cover gasket on my outboard?\u003c\/strong\u003e The exhaust cover gasket should be replaced whenever the exhaust cover is removed for service, or if you notice leaking at the cover joint, since the Sierra 18-2500-9 gasket loses its seal after removal or extended heat exposure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2500-9?\u003c\/strong\u003e An order of the Sierra 18-2500-9 includes a pack of 2 Exhaust Cover Gaskets, sized for a complete replacement in a single service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2500-9 come with installation hardware?\u003c\/strong\u003e No, the Sierra 18-2500-9 pack contains only the 2 exhaust cover gaskets; it does not include bolts or other hardware.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988106883291,"sku":"SIE-18-2500-9","price":8.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/sierra_lg_1128__45954.1558122009.500.750.jpg?v=1785189094","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2500-9-exhaust-cover-gasket-replaces-mercury-27-85490-2-fits-35-40-hp-outboards-2-pack","provider":"Good Vibes Marina","version":"1.0","type":"link"}