{"product_id":"pinion-nut-for-omc-gearcase-lower-unit-replaces-oem-911753-sierra-18-3769","title":"Sierra Pinion Nut 18-3769, Replaces OMC 911753, Fits OMC Outboard Gearcases","description":"\u003cp\u003eThe Sierra 18-3769 is a pinion nut engineered as a direct replacement for the OMC gearcase and drive system. It secures onto the drive shaft to retain the pinion gear assembly in the lower unit, and is built to match the fit and function of the original OMC hardware it replaces. This part is sourced within Sierra's OMC gearcase and drive parts line and is intended for boat owners and marine technicians servicing lower-unit gearcases on the applicable OMC outboard models.\u003c\/p\u003e\u003cp\u003eAs a gearcase hardware component, the 18-3769 pinion nut is a precision-fit replacement item, not a universal fastener, and is matched specifically to OMC engine models and years where the original 911753 nut was used. Installers should confirm their engine model against the fitment list below before ordering to ensure correct gear mesh and drive shaft retention.\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 18-3769\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Pinion Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 911753\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e OMC Gearcase and Drive Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.25 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282159603\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e OMC 115 (1994-97), 232 (1987-90), 252 (1986), 262, 350, 460 (1989), 302, 574 (1986-92), 432 (1986-93), 502 (1988-93), 504, 754 (1986-88), 584 (1989-93), 744 (1988), 90 Jet (1994-95)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMC 115 (1994-97)\u003c\/li\u003e\n\u003cli\u003eOMC 232 (1987-90)\u003c\/li\u003e\n\u003cli\u003eOMC 252 (1986)\u003c\/li\u003e\n\u003cli\u003eOMC 262\u003c\/li\u003e\n\u003cli\u003eOMC 350\u003c\/li\u003e\n\u003cli\u003eOMC 460 (1989)\u003c\/li\u003e\n\u003cli\u003eOMC 302\u003c\/li\u003e\n\u003cli\u003eOMC 574 (1986-92)\u003c\/li\u003e\n\u003cli\u003eOMC 432 (1986-93)\u003c\/li\u003e\n\u003cli\u003eOMC 502 (1988-93)\u003c\/li\u003e\n\u003cli\u003eOMC 504\u003c\/li\u003e\n\u003cli\u003eOMC 754 (1986-88)\u003c\/li\u003e\n\u003cli\u003eOMC 584 (1989-93)\u003c\/li\u003e\n\u003cli\u003eOMC 744 (1988)\u003c\/li\u003e\n\u003cli\u003eOMC 90 Jet (1994-95)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e911753\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3769 pinion nut replace?\u003c\/strong\u003e The Sierra 18-3769 pinion nut is a direct replacement for OMC part number 911753.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OMC engine models does the 18-3769 pinion nut fit?\u003c\/strong\u003e It fits OMC engine models 115 (1994-97), 232 (1987-90), 252 (1986), 262, 350, 460 (1989), 302, 574 (1986-92), 432 (1986-93), 502 (1988-93), 504, 754 (1986-88), 584 (1989-93), 744 (1988), and 90 Jet (1994-95).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra part number for this pinion nut?\u003c\/strong\u003e 18-3769 is the Sierra part number for this pinion nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3769 pinion nut weigh?\u003c\/strong\u003e The Sierra 18-3769 pinion nut weighs 0.25 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of part is the Sierra 18-3769?\u003c\/strong\u003e It is a pinion nut, classified within OMC gearcase and drive parts, used in the lower unit gearcase assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3769 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The Sierra 18-3769 is an aftermarket pinion nut manufactured by Sierra to replace the original OMC 911753 nut.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 18-3769 fit any OMC outboard?\u003c\/strong\u003e No, the 18-3769 pinion nut is matched to specific OMC engine models only, including 115, 232, 252, 262, 350, 460, 302, 574, 432, 502, 504, 754, 584, 744, and 90 Jet; confirm your engine model before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC is associated with the Sierra 18-3769 pinion nut?\u003c\/strong\u003e The Sierra 18-3769 pinion nut carries UPC 808282159603.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does a pinion nut like the Sierra 18-3769 do in a gearcase?\u003c\/strong\u003e A pinion nut retains the pinion gear on the drive shaft within the gearcase, and the 18-3769 is sized to perform this role on the applicable OMC models listed in its fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the Sierra 18-3769 be cross-referenced by its OMC number?\u003c\/strong\u003e Yes, buyers searching by the OMC number 911753 will find that it corresponds to the Sierra 18-3769 pinion nut.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988164980955,"sku":"SIE-18-3769","price":16.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3769_lg__67913.1558127068.500.750.jpg?v=1785329176","url":"https:\/\/www.goodvibesmarina.com\/products\/pinion-nut-for-omc-gearcase-lower-unit-replaces-oem-911753-sierra-18-3769","provider":"Good Vibes Marina","version":"1.0","type":"link"}