{"product_id":"1409kmt-harley-big-twin-mainshaft-inner-bearing-race-installer-puller-1984-present-black-oxide","title":"1409KMT Harley Big Twin Mainshaft Inner Bearing Race Installer\/Puller 1984–Present, Black Oxide","description":"\u003cp\u003e\u003cstrong\u003e1409KMT's installer\/puller removes and installs the mainshaft inner bearing race on 5- and 6-speed Big Twin transmissions (fits 1984–present and replaces OEM #34902-84).\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you're working on a Harley-Davidson Big Twin transmission from 1984 onward, this dedicated tool from 1409KMT simplifies the often tricky job of extracting and seating the mainshaft inner bearing race. Built as a direct replacement for the OEM tool #34902-84, the set is finished in black oxide for corrosion resistance and includes all parts shown in the product images for immediate use in the garage or shop.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tool make mainshaft bearing race removal easier?\u003c\/h3\u003e\n\u003cp\u003eThe 1409KMT puller is shaped to grip and extract the inner race without damaging surrounding transmission components. It provides mechanical leverage and controlled force so you can remove the race cleanly, reducing the risk of scoring shafts or cases.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTailored fit for Big Twin 5- and 6-speed transmissions (1984–present).\u003c\/li\u003e\n  \u003cli\u003eDesigned to engage the inner race securely for straight pulls.\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish helps resist corrosion and wear over repeated use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this tool to reinstall the bearing race accurately?\u003c\/h3\u003e\n\u003cp\u003eYes — the kit functions as both a puller and an installer, allowing you to seat the inner race squarely without hammering directly on bearings or shafts. The installer components guide the race into position to achieve proper alignment and fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eParts included to support controlled, even seating of the race.\u003c\/li\u003e\n  \u003cli\u003eReduces risk of misalignment that can cause premature bearing failure.\u003c\/li\u003e\n  \u003cli\u003eFits 5-speed and 6-speed Big Twin transmissions for consistent results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this an OEM replacement and will it fit my Harley model?\u003c\/h3\u003e\n\u003cp\u003eThis 1409KMT tool set is made as a direct replacement for OEM tool #34902-84 and fits Big Twin Harley-Davidson transmissions from 1984 to present. If your bike uses a five- or six-speed Big Twin transmission in that range, this tool will match the OEM function and fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for OEM #34902-84, simplifying parts selection.\u003c\/li\u003e\n  \u003cli\u003eCompatible with all 1984–present Big Twin five- and six-speed transmissions.\u003c\/li\u003e\n  \u003cli\u003eComes brand new and complete with the components shown in product images.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and finish does the tool use for durability?\u003c\/h3\u003e\n\u003cp\u003eThe puller\/installer is produced with a durable finish to extend service life in workshop environments. The black oxide coating resists surface corrosion and gives the components a tougher exterior for repeated installations and removals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBlack oxide finish for improved corrosion resistance.\u003c\/li\u003e\n  \u003cli\u003eManufactured to withstand repeated mechanical use in a garage setting.\u003c\/li\u003e\n  \u003cli\u003eSold new, including all parts depicted for immediate application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This 1409KMT transmission mainshaft inner bearing race installer\/puller is intended for motorcycle technicians, home mechanics, and Harley-Davidson enthusiasts who perform drivetrain servicing on Big Twin models from 1984 onward. If you want a purpose-built replacement for the OEM #34902-84 that helps protect shafts and bearings during removal and installation, this kit delivers a practical, workshop-ready solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this replace OEM tool #34902-84?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This 1409KMT kit is made as a direct replacement for OEM tool #34902-84 for Big Twin transmissions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which models and years does it fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Harley-Davidson Big Twin five- and six-speed transmissions from 1984 through present models.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"1409KMT","offers":[{"title":"Default Title","offer_id":55167295029591,"sku":"B08R5BRY14","price":57.01,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/1409kmt-front-packaging-mainshaft-race-tool.jpg?v=1790381955","url":"https:\/\/britishgarage.co.uk\/products\/1409kmt-harley-big-twin-mainshaft-inner-bearing-race-installer-puller-1984-present-black-oxide","provider":"British Garage","version":"1.0","type":"link"}