{"product_id":"sierra-18-7112-marine-o-ring-for-omc-cobra-sterndrive-johnson-evinrude-replaces-oem-301877-1-170-in-i-d","title":"Sierra 18-7112 O-Ring for OMC Sterndrive\/Cobra Stern Drive, Replaces Johnson\/Evinrude 302493","description":"\u003cp\u003eThe Sierra 18-7112 O-Ring is a rubber sealing ring built for use in select Johnson\/Evinrude engines, including OMC Sterndrive and Cobra Stern Drive applications. It has a 1.170 inch (29.7mm) inside diameter and a 0.135 inch (3.4mm) width, sized to create a reliable seal at its designated mating surface. Each package contains one O-ring. As a Sierra part, the 18-7112 is manufactured to meet or exceed the performance of the original equipment part it replaces, making it a straightforward option when a factory O-ring has hardened, cracked, or lost its seal over time. It is interchangeable with GLM 82170 and Johnson\/Evinrude Outboard 302493, so it can be ordered using any of those reference numbers. Because O-rings of this size can appear in multiple locations on a sterndrive or outboard, buyers should confirm the dimensions and application against their engine's manufacturer recommendations before ordering to ensure a proper fit. The 18-7112 is a simple, low-cost maintenance item worth keeping on hand for routine service or repair work on compatible Johnson\/Evinrude powered boats.\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 18-7112\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 1.170 inches (29.7mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.135 inches (3.4mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1 O-ring per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999321329\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for use in select Johnson\/Evinrude engines, including OMC Sterndrive and Cobra Stern Drive applications.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 82170\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude Outboard 302493\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the Sierra 18-7112 O-Ring?\u003c\/strong\u003e The Sierra 18-7112 O-Ring has a 1.170 inch (29.7mm) inside diameter and a 0.135 inch (3.4mm) width.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-7112 O-Ring fit?\u003c\/strong\u003e It is designed for use in select Johnson\/Evinrude engines, including OMC Sterndrive and Cobra Stern Drive applications. Confirm the exact application against your engine's manufacturer recommendations before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7112 the same as GLM 82170?\u003c\/strong\u003e Yes, the Sierra 18-7112 O-Ring is interchangeable with GLM 82170.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the Sierra 18-7112 cross-reference to a Johnson\/Evinrude part number?\u003c\/strong\u003e Yes, it is interchangeable with Johnson\/Evinrude Outboard part number 302493.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-7112 O-Ring made from?\u003c\/strong\u003e It is made from rubber, suited for use as a sealing O-ring in marine engine applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many O-rings come in a package?\u003c\/strong\u003e One Sierra 18-7112 O-Ring is included per package.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-7112 O-Ring weigh?\u003c\/strong\u003e The 18-7112 O-ring weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7112 an OEM or aftermarket part?\u003c\/strong\u003e The 18-7112 is a Sierra aftermarket O-ring manufactured to meet or exceed the performance of the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if this O-ring will fit my engine?\u003c\/strong\u003e Because O-rings of this size and shape can be used in more than one location on an engine, check the 1.170 inch inside diameter and 0.135 inch width, along with your manufacturer's recommendations, before ordering the Sierra 18-7112.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-7112 O-Ring?\u003c\/strong\u003e The UPC for the Sierra 18-7112 O-Ring is 030999321329.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988364079323,"sku":"SIE-18-7112","price":2.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-7112__81290.1722516558.500.750.jpg?v=1785187993","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7112-marine-o-ring-for-omc-cobra-sterndrive-johnson-evinrude-replaces-oem-301877-1-170-in-i-d","provider":"Good Vibes Marina","version":"1.0","type":"link"}