{"product_id":"sierra-18-2221-gear-set-for-johnson-evinrude-omc-brp-outboards-replaces-oem-434063-333077-323664-forward-gear-reverse-gear-sliding-clutch","title":"Sierra 18-2221 Gear Set for Johnson\/Evinrude Outboards 112-125 HP","description":"\u003cp\u003eThe Sierra 18-2221 Gear Set is a replacement drive-train gear set built for Johnson\/Evinrude (OMC\/BRP) outboard motors. It is engineered to meet or exceed the quality of the original equipment gear set it replaces, giving boat owners a dependable way to restore proper shifting and power transfer in the lower unit without sourcing increasingly scarce OEM parts. The gear set is manufactured to Sierra's marine-duty standards, which means it is built to hold up to the constant load reversals, saltwater exposure, and heat cycling that outboard drive components see in service.\u003c\/p\u003e\u003cp\u003eThis gear set is designed for use with a specific range of Johnson\/Evinrude outboards spanning 112 HP through 125 HP commercial models, matched to particular years and drive configurations. A companion pinion gear, Sierra 18-1288, is sold separately and is commonly installed alongside this gear set during a lower unit rebuild. Because outboard lower units use closely related gear sets across different horsepower and year combinations, it is important to confirm the exact HP, year, and model before ordering to ensure this is the correct gear set for the application.\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 18-2221\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Gear Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Outboard Lower Unit Drive System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Engine Brand:\u003c\/strong\u003e Johnson\/Evinrude (OMC\/BRP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.85 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999621306\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompanion Pinion (sold separately):\u003c\/strong\u003e Sierra 18-1288\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable With:\u003c\/strong\u003e GLM 22630, Mallory 9-73560\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 112 HP, 1994-96, All models\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 115 HP, 1978-85 and 1990-98, All models\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 115 HP, 1999, 20 inch 60 degree V4\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 120 HP, 1986-92, All models\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 120 HP, 1993-94, TL and TX\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 125 HP Commercial, 1989-90\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGLM 22630\u003c\/li\u003e\n\u003cli\u003eMallory 9-73560\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-2221 Gear Set used for?\u003c\/strong\u003e It is a replacement gear set for the lower unit drive system of Johnson\/Evinrude (OMC\/BRP) outboard motors, restoring proper gear engagement and power transfer when the original gears wear out.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich outboards does the 18-2221 gear set fit?\u003c\/strong\u003e This gear set fits Johnson\/Evinrude outboards including 112 HP (1994-96, all models), 115 HP (1978-85 and 1990-98, all models, and the 1999 20 inch 60 degree V4), 120 HP (1986-92 all models, and 1993-94 TL and TX), and 125 HP Commercial models (1989-90). Confirm your engine's exact HP, year, and model before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-2221 equivalent to any other brand's part?\u003c\/strong\u003e Yes, the Sierra 18-2221 Gear Set is interchangeable with GLM 22630 and Mallory 9-73560.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need to buy the pinion gear separately?\u003c\/strong\u003e Yes, the companion pinion, Sierra 18-1288, is sold separately from the 18-2221 Gear Set and is typically replaced at the same time during a lower unit rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2221 Gear Set weigh?\u003c\/strong\u003e The Sierra 18-2221 Gear Set weighs 3.85 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs Sierra 18-2221 an OEM or aftermarket part?\u003c\/strong\u003e It is an aftermarket gear set manufactured by Sierra to meet or exceed the quality of the original equipment gear set it replaces.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many gear sets come in one order?\u003c\/strong\u003e One Sierra 18-2221 Gear Set is included per unit ordered.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this gear set be used on a 1993-94 120 HP TX model?\u003c\/strong\u003e Yes, the 18-2221 Gear Set is listed for 1993-94 120 HP TL and TX Johnson\/Evinrude outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this gear set fit a 1999 115 HP outboard?\u003c\/strong\u003e It fits the 1999 115 HP Johnson\/Evinrude with the 20 inch 60 degree V4 configuration; a different gear set (18-2251) is used for the 25 inch transom version of the same year and horsepower.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat should I check before ordering the 18-2221 Gear Set?\u003c\/strong\u003e Match your outboard's exact horsepower, model year, and model designation against the fitment list, since Johnson\/Evinrude outboards use several closely related gear sets across similar horsepower ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2221 Gear Set include the shift clutch?\u003c\/strong\u003e No, the shift clutch is a separate component (listed as 18-2220 or 18-2200 depending on application) from the 18-2221 Gear Set itself.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105670875,"sku":"SIE-18-2221","price":331.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2221_lg__57137.1558124238.500.750.jpg?v=1785188232","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2221-gear-set-for-johnson-evinrude-omc-brp-outboards-replaces-oem-434063-333077-323664-forward-gear-reverse-gear-sliding-clutch","provider":"Good Vibes Marina","version":"1.0","type":"link"}