{"product_id":"sierra-18-2023-oil-seal-for-evinrude-johnson-omc-outboards-replaces-omc-313282-prop-driveshaft-seal","title":"Sierra Oil Seal 18-2023 for Evinrude\/OMC Outboards, Replaces 313282","description":"\u003cp\u003eThe Sierra 18-2023 Oil Seal is a replacement oil seal built for Evinrude and OMC outboard prop and driveshaft applications. It is a small, precision-machined seal designed to keep gearcase lubricant contained while blocking water intrusion at the driveshaft, protecting internal gears and bearings from corrosion and premature wear. With an outer diameter of 1.062 inches, a shaft size of 0.554 inches, and a width of 0.312 inches, the 18-2023 is sized to drop into the same location as the original equipment seal it replaces, cross-referencing directly to OEM number 313282. Its machined exterior finish supports a consistent, leak-resistant fit against the housing bore. This seal is typically used during gearcase service, driveshaft seal replacement, or lower unit rebuilds where the original seal has hardened, cracked, or begun to weep lubricant. Because it is sold as an individual component, it also appears as a listed content item within Sierra water pump kit assemblies that call for this seal as part of a complete rebuild. At just 0.02 pounds, it ships compact and is easy to add alongside other gearcase maintenance parts. Buyers replacing a leaking oil seal on an Evinrude or OMC outboard driveshaft can use the 18-2023 as a direct fit for the original 313282 seal.\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 18-2023\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 1.062 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Size:\u003c\/strong\u003e 0.554 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 0.312 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExterior Finish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999309693\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 313282\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Evinrude and OMC outboard prop and driveshaft seal applications; also used as a component within Sierra water pump kit assemblies for these outboards.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e313282\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2023 oil seal fit?\u003c\/strong\u003e The 18-2023 is designed for Evinrude and OMC outboard prop and driveshaft seal applications, and it also appears as a component seal within Sierra water pump kit assemblies for these outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2023 cross-reference to an OEM part number?\u003c\/strong\u003e Yes, the Sierra 18-2023 oil seal cross-references directly to OEM number 313282.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this oil seal?\u003c\/strong\u003e The 18-2023 measures 1.062 inches outer diameter, 0.554 inches shaft size, and 0.312 inches in width.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2023 oil seal weigh?\u003c\/strong\u003e This Sierra oil seal weighs 0.02 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the exterior finish on the 18-2023 seal?\u003c\/strong\u003e The Sierra 18-2023 oil seal has a machined exterior finish for a consistent fit in the housing bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2023 a genuine aftermarket replacement or OEM part?\u003c\/strong\u003e The 18-2023 is a Sierra aftermarket replacement seal manufactured to replace OEM number 313282, not an original OMC-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to replace this oil seal?\u003c\/strong\u003e This seal should be replaced when it hardens, cracks, or begins leaking gearcase lubricant, typically during a driveshaft seal replacement or lower unit rebuild on an Evinrude or OMC outboard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2023 sold as a standalone seal or only as part of a kit?\u003c\/strong\u003e The 18-2023 oil seal is sold as an individual replacement part, and it is also listed as a content item within Sierra water pump kit assemblies for outboards that call for this seal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the 18-2023?\u003c\/strong\u003e Ordering the Sierra 18-2023 gets you one oil seal sized 1.062 inches OD by 0.554 inches shaft by 0.312 inches width.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this seal require any special tools to install?\u003c\/strong\u003e The listing for the Sierra 18-2023 oil seal does not specify special tools; standard gearcase seal installation practices apply when fitting this driveshaft seal.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988090499291,"sku":"SIE-18-2023","price":15.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/51qL22h-r2L.jpg?v=1784389531","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2023-oil-seal-for-evinrude-johnson-omc-outboards-replaces-omc-313282-prop-driveshaft-seal","provider":"Good Vibes Marina","version":"1.0","type":"link"}