{"product_id":"sierra-18-7108-9-o-ring-pack-of-5-replaces-omc-313893-for-johnson-evinrude-outboard-omc-cobra-sterndrive","title":"Sierra 18-7108-9 O-Ring, Pack of 5, Replaces Johnson\/Evinrude 313893, 338518","description":"\u003cp\u003eThe Sierra 18-7108-9 O-Ring is a rubber sealing ring designed for use in Johnson and Evinrude outboard applications, sold in a pack of 5. Each O-ring measures 2.550 inches (64.8mm) in inside diameter with a cross-section width of 0.100 inches (2.5mm), providing a reliable seal against fuel, oil, and water intrusion in outboard powerhead and lower-unit assemblies. The O-ring is molded from black rubber for durability and resistance to the marine environment. Sierra manufactures this O-ring to meet or exceed the specifications of the original equipment part it replaces, making it a direct fit for applications originally fitted with Johnson\/Evinrude, GLM, Mallory, or OMC Stern Drive O-rings sharing the same cross-references. Selling multiples in a single pack lets technicians keep spares on hand for routine maintenance or full engine rebuilds, since O-rings are a wear item that should be replaced any time a sealed joint is opened. This is a genuine Sierra part, not a generic aftermarket substitute, and carries the Sierra International brand name.\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 18-7108-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Rubber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter:\u003c\/strong\u003e 2.550 inches (64.8 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.100 inches (2.5 millimeters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity:\u003c\/strong\u003e Pack of 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282165093\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson outboard applications\u003c\/li\u003e\n\u003cli\u003eEvinrude outboard applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 81450\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude Outboard 313893\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude Outboard 338518\u003c\/li\u003e\n\u003cli\u003eMallory 9-76522\u003c\/li\u003e\n\u003cli\u003eOMC Stern Drive 313893\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-7108-9 O-Ring fit?\u003c\/strong\u003e The Sierra 18-7108-9 O-Ring is designed for use in Johnson and Evinrude outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many O-rings come in a pack?\u003c\/strong\u003e Each pack of the Sierra 18-7108-9 contains 5 O-rings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the inside diameter of this O-ring?\u003c\/strong\u003e The inside diameter of the Sierra 18-7108-9 O-Ring is 2.550 inches, or 64.8mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the cross-section width of the 18-7108-9 O-ring?\u003c\/strong\u003e The Sierra 18-7108-9 O-Ring has a width of 0.100 inches, or 2.5mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-7108-9 O-Ring made from?\u003c\/strong\u003e It is made from black rubber, suited to sealing against fuel, oil, and water in outboard applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the Sierra 18-7108-9 replace?\u003c\/strong\u003e The Sierra 18-7108-9 is interchangeable with GLM 81450, Johnson\/Evinrude Outboard 313893, Johnson\/Evinrude Outboard 338518, Mallory 9-76522, and OMC Stern Drive 313893.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-7108-9 O-Ring genuine or aftermarket?\u003c\/strong\u003e It is a Sierra-branded replacement part manufactured to meet or exceed the original equipment part it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-7108-9 O-Ring weigh?\u003c\/strong\u003e The pack weighs 0.03 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-7108-9 O-ring?\u003c\/strong\u003e The Sierra 18-7108-9 O-Ring is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen should I replace an O-ring like the 18-7108-9?\u003c\/strong\u003e O-rings are a wear item, so the Sierra 18-7108-9 should be replaced any time the sealed joint it seals is opened during service or a rebuild, which is why it is sold in a pack of 5 for keeping spares on hand.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-7108-9 O-Ring?\u003c\/strong\u003e The UPC for the Sierra 18-7108-9 O-Ring is 808282165093.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988363981019,"sku":"SIE-18-7108-9","price":9.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/41nFPXMcGuL.jpg?v=1784409325","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-7108-9-o-ring-pack-of-5-replaces-omc-313893-for-johnson-evinrude-outboard-omc-cobra-sterndrive","provider":"Good Vibes Marina","version":"1.0","type":"link"}