{"product_id":"sierra-18-0989-air-silencer-gasket-for-evinrude-johnson-outboards-replaces-oem-321794","title":"Sierra 18-0989 Air Silencer Gasket, Replaces GLM 34430, Evinrude\/Johnson 321794, Mallory 9-60418","description":"\u003cp\u003eThe Sierra 18-0989 Air Silencer Gasket is a replacement gasket engineered to meet or exceed original equipment quality for outboard engines using this air silencer configuration. It is a direct cross-reference for GLM 34430, Evinrude\/Johnson 321794, and Mallory 9-60418, making it a straightforward drop-in replacement wherever one of those part numbers is called for. The gasket is finished in white and is built to seal reliably at the air silencer joint, helping maintain proper intake sealing and preventing air leaks that can affect engine performance.\u003c\/p\u003e\u003cp\u003eThis gasket is a fit-specific part, so buyers should confirm the part number against their existing hardware or a parts diagram before ordering to ensure proper fit. At 0.11 pounds, it ships as a lightweight, single-component gasket ready to install in place of a worn or damaged original.\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 18-0989\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Air Silencer 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 0.11 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999755704\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN:\u003c\/strong\u003e 00030999755704\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Gasket Sets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFit specific; check part numbers to ensure proper fit before ordering.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 34430\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 321794\u003c\/li\u003e\n\u003cli\u003eMallory 9-60418\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-0989 Air Silencer Gasket replace?\u003c\/strong\u003e It cross-references to GLM 34430, Evinrude\/Johnson 321794, and Mallory 9-60418, so any of those part numbers can be replaced with Sierra 18-0989.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Sierra part or an aftermarket copy?\u003c\/strong\u003e Sierra 18-0989 is manufactured by Sierra and is built to meet or exceed the quality of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does this gasket weigh?\u003c\/strong\u003e The Sierra 18-0989 Air Silencer Gasket weighs 0.11 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-0989 gasket?\u003c\/strong\u003e It is finished in white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this gasket fit any outboard air silencer?\u003c\/strong\u003e No, Sierra 18-0989 is a fit-specific part, so buyers should check part numbers against their existing hardware before ordering to ensure proper fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order this part?\u003c\/strong\u003e The order includes one Sierra 18-0989 Air Silencer Gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Evinrude\/Johnson 321794 gasket the same as the Sierra 18-0989?\u003c\/strong\u003e Yes, Evinrude\/Johnson 321794 is listed as an interchangeable equivalent to Sierra 18-0989.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Mallory 9-60418 gasket cross-reference to this Sierra part?\u003c\/strong\u003e Yes, Mallory 9-60418 is a direct cross-reference to Sierra 18-0989 Air Silencer Gasket.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for this gasket?\u003c\/strong\u003e The UPC for the Sierra 18-0989 Air Silencer Gasket is 030999755704.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if I need the 18-0989 gasket instead of another Sierra gasket?\u003c\/strong\u003e Match your existing part number against GLM 34430, Evinrude\/Johnson 321794, or Mallory 9-60418 to confirm that Sierra 18-0989 is the correct replacement.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988086665435,"sku":"SIE-18-0989","price":9.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-0989_lg__94581.1558121716.500.750.jpg?v=1785188517","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-0989-air-silencer-gasket-for-evinrude-johnson-outboards-replaces-oem-321794","provider":"Good Vibes Marina","version":"1.0","type":"link"}