{"product_id":"sierra-18-3728-marine-lock-nut-for-mercruiser-rear-engine-mount-replaces-mercury-11-99298-11-863332","title":"Sierra 18-3728 Bolt Kit, Replaces 10-97934A1, for R\/MR\/Alpha I\/Gen II\/Bravo","description":"\u003cp\u003eThe Sierra 18-3728 is a bolt kit engineered as a direct replacement for OEM part 10-97934A1. It is built for R\/MR, Alpha I, Gen II, and Bravo drive applications, giving boat owners and marine technicians a reliable option when the original hardware is worn, corroded, or missing. Sierra manufactures replacement marine hardware to match OEM fit and function, so this kit is designed to install in place of the original bolt hardware without modification.\u003c\/p\u003e\u003cp\u003eThis kit is sold under Sierra's own part number, 18-3728, and is intended for technicians and DIY boat owners performing maintenance or repair on applicable drive assemblies. Because it directly cross-references to Mercury\/Quicksilver part number 10-97934A1, it can be used to confirm the correct replacement when servicing R\/MR, Alpha I, Gen II, or Bravo equipped boats.\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 18-3728\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Bolt Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e R\/MR\/Alpha I\/Gen II\/Bravo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces (OEM):\u003c\/strong\u003e 10-97934A1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282236397\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Items:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eR\/MR\/Alpha I\/Gen II\/Bravo\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e10-97934A1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-3728 bolt kit fit?\u003c\/strong\u003e The Sierra 18-3728 bolt kit is designated for R\/MR, Alpha I, Gen II, and Bravo drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the Sierra 18-3728 replace?\u003c\/strong\u003e It replaces OEM part number 10-97934A1, so it can be ordered as a direct substitute for that number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-3728 an OEM part or an aftermarket replacement?\u003c\/strong\u003e The 18-3728 is a Sierra-brand replacement part manufactured to replace OEM number 10-97934A1, not an original Mercury\/Quicksilver-branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 18-3728 bolt kit weigh?\u003c\/strong\u003e The Sierra 18-3728 bolt kit weighs 0.04 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many items are included with part 18-3728?\u003c\/strong\u003e Sierra part 18-3728 is packaged as a single item (quantity of 1) per kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use the Sierra 18-3728 if my boat is not an R\/MR, Alpha I, Gen II, or Bravo drive?\u003c\/strong\u003e The 18-3728 bolt kit is designated specifically for R\/MR, Alpha I, Gen II, and Bravo drives, so fitment on other drive types is not confirmed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for Sierra part 18-3728?\u003c\/strong\u003e The UPC for the Sierra 18-3728 bolt kit is 808282236397.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm the Sierra 18-3728 is the right replacement for my boat?\u003c\/strong\u003e Match your boat's original hardware against OEM number 10-97934A1 or confirm your drive is an R\/MR, Alpha I, Gen II, or Bravo model; the 18-3728 is manufactured to replace that specific OEM number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes Sierra make other hardware kits similar to the 18-3728?\u003c\/strong\u003e Sierra offers a range of marine hardware replacement kits alongside the 18-3728 bolt kit, each tied to a specific OEM cross-reference number for correct fitment.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988162785499,"sku":"SIE-18-3728","price":4.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-3728_lg__75425.1558127758.500.750.jpg?v=1785189121","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-3728-marine-lock-nut-for-mercruiser-rear-engine-mount-replaces-mercury-11-99298-11-863332","provider":"Good Vibes Marina","version":"1.0","type":"link"}