{"product_id":"sierra-18-2694-lower-unit-seal-kit-for-johnson-evinrude-omc-brp-50-75-hp-3-cyl-1979-2003-replaces-0433550","title":"Sierra Gear Housing Seal Kit 18-2694, Replaces Evinrude\/Johnson 433550, Fits Johnson\/Evinrude 50-75 HP 3-Cylinder Outboard Gearcases 1979-2003","description":"\u003cp\u003eThe Sierra Gear Housing Seal Kit 18-2694 is a lower unit seal kit engineered to reseal the gearcase on Johnson\/Evinrude (OMC\/BRP) 50-75 HP 3-cylinder outboards built from 1979 to 2003. The kit gathers the seals needed for a gear housing rebuild into a single part number, replacing the Evinrude\/Johnson OEM number 433550, so a technician does not have to source individual seals separately when servicing the lower unit.\u003c\/p\u003e\u003cp\u003eSierra builds this kit to meet or exceed original equipment quality, with each seal engineered for a precise fit, form, and function against the gearcase housing it is designed to seal. It is intended for marine technicians and DIY boaters performing a gear housing rebuild, water pump service, or general lower unit maintenance on a compatible Johnson\/Evinrude outboard, where worn or hardened factory seals need to be replaced to keep gear lube contained and water out of the lower unit.\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 18-2694\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gear Housing Seal Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 433550\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Johnson\/Evinrude (OMC\/BRP) outboards, 50-75 HP, 3 Cylinder, 1979-2003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.16 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999752840\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude (OMC\/BRP) outboard gearcases, 50-75 HP, 3 Cylinder, 1979-2003\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e433550\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2694 gear housing seal kit fit?\u003c\/strong\u003e Sierra part 18-2694 is designed for Johnson\/Evinrude (OMC\/BRP) outboards rated 50-75 HP with a 3-cylinder engine, covering model years 1979 to 2003.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does 18-2694 replace?\u003c\/strong\u003e It replaces Evinrude\/Johnson OEM number 433550.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this kit made by the original outboard manufacturer?\u003c\/strong\u003e No, 18-2694 is a Sierra-branded aftermarket seal kit built to meet or exceed original equipment quality as a replacement for Evinrude\/Johnson part 433550, rather than a part produced by Johnson\/Evinrude itself.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2694 seal kit weigh?\u003c\/strong\u003e The kit weighs 0.16 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included in the Sierra 18-2694 kit?\u003c\/strong\u003e The kit includes one gear housing seal kit assembly (unit count of 1) containing the seals needed to reseal the gearcase on compatible Johnson\/Evinrude outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color are the seals in kit 18-2694?\u003c\/strong\u003e The seals in the Sierra 18-2694 gear housing seal kit are white.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use 18-2694 on a 4-cylinder Johnson\/Evinrude outboard?\u003c\/strong\u003e No, 18-2694 is specified for 3-cylinder Johnson\/Evinrude (OMC\/BRP) outboards in the 50-75 HP range; a different Sierra part number would be needed for other cylinder configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen would I need to install this seal kit?\u003c\/strong\u003e This kit is used during a gear housing (lower unit) rebuild or when servicing the gearcase on a compatible Johnson\/Evinrude outboard, typically when old seals have hardened or are leaking gear lube or allowing water intrusion.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes 18-2694 cover model years outside 1979-2003?\u003c\/strong\u003e The listed coverage for Sierra 18-2694 is Johnson\/Evinrude 50-75 HP 3-cylinder outboards built from 1979 to 2003; years outside that range are not covered by this part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs 18-2694 the same as the water pump repair kit for these outboards?\u003c\/strong\u003e No, 18-2694 is the gear housing seal kit; the water pump repair kit for the same outboard family is a separate Sierra part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2694 kit?\u003c\/strong\u003e The UPC for Sierra gear housing seal kit 18-2694 is 030999752840.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988109308123,"sku":"SIE-18-2694","price":39.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/img_d616b55f-4b16-4972-8767-0e618eafcd90.jpg?v=1785332815","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2694-lower-unit-seal-kit-for-johnson-evinrude-omc-brp-50-75-hp-3-cyl-1979-2003-replaces-0433550","provider":"Good Vibes Marina","version":"1.0","type":"link"}