{"product_id":"lower-unit-seal-kit-for-evinrude-johnson-omc-outboards-replaces-omc-330137-303345-327031-sierra-18-2679","title":"Sierra Lower Unit Seal Kit 18-2679, Replaces 303345 and 327031","description":"\u003cp\u003eThe Sierra 18-2679 Lower Unit Seal Kit is a two-piece oil seal set for the lower unit gear housing on Evinrude outboard motors. The kit bundles two oil seals so both sealing points in the gear housing are replaced together during a single service job, helping prevent gear lube leaks and water intrusion that can lead to costly gear housing damage.\u003c\/p\u003e\u003cp\u003eEach seal in this kit corresponds to a specific position in the gear housing: one seal (Sierra 18-2022) replaces the original equipment 303345 seal, and the second seal (Sierra 18-2035) replaces the original equipment 327031 seal. Sourcing both seals as a matched kit under a single Sierra part number simplifies ordering for a complete lower unit reseal rather than tracking down each seal individually.\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 18-2679\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Lower Unit Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e 2 oil seals (Sierra 18-2022 and Sierra 18-2035)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Evinrude Outboard Gear Housing Seal Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999562784\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned for Evinrude outboard gear housings using the 303345 and 327031 original equipment oil seals.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e303345\u003c\/li\u003e\n\u003cli\u003e327031\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2679 Lower Unit Seal Kit include?\u003c\/strong\u003e The kit includes two oil seals: Sierra part 18-2022, which replaces original equipment number 303345, and Sierra part 18-2035, which replaces original equipment number 327031.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-2679 a direct replacement for OEM seals 303345 and 327031?\u003c\/strong\u003e Yes, the Sierra 18-2679 kit is built to replace original equipment oil seals 303345 and 327031 in the gear housing lower unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-2679 seal kit weigh?\u003c\/strong\u003e The Sierra 18-2679 Lower Unit Seal Kit weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat category of outboard does this seal kit belong to?\u003c\/strong\u003e The 18-2679 kit is listed under Evinrude Outboard Gear Housing Seal Kits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many seals come in the 18-2679 kit?\u003c\/strong\u003e Two oil seals are included in the 18-2679 kit, one qty each of 18-2022 and 18-2035.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the individual seals in kit 18-2679 be purchased separately?\u003c\/strong\u003e The two seals that make up the 18-2679 kit have their own Sierra part numbers, 18-2022 and 18-2035, though this listing is for the combined two-seal kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra Lower Unit Seal Kit 18-2679?\u003c\/strong\u003e The UPC for the Sierra 18-2679 Lower Unit Seal Kit is 030999562784.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I replace both seals at once with kit 18-2679 instead of one at a time?\u003c\/strong\u003e Replacing both gear housing oil seals together with the 18-2679 kit addresses both sealing points in the same service, reducing the chance of a leak developing at the seal left untouched.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2679 kit include gaskets or just seals?\u003c\/strong\u003e The 18-2679 kit contains oil seals only, specifically the two seals corresponding to OEM numbers 303345 and 327031.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM numbers cross-reference to the Sierra 18-2679 kit?\u003c\/strong\u003e The Sierra 18-2679 Lower Unit Seal Kit cross-references to OEM numbers 303345 and 327031.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988108783835,"sku":"SIE-18-2679","price":35.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2679_lg__40455.1558122918.500.750.jpg?v=1785329168","url":"https:\/\/www.goodvibesmarina.com\/products\/lower-unit-seal-kit-for-evinrude-johnson-omc-outboards-replaces-omc-330137-303345-327031-sierra-18-2679","provider":"Good Vibes Marina","version":"1.0","type":"link"}