Transmission & Drive Train
![STARTER SHAFT BUSHINGS FOR BIG TWIN](http://rt66cycle.com/cdn/shop/products/0076661_550.JPG_6944a973-848a-47a3-8335-956eace89b7d_{width}x.jpg?v=1614565768)
STARTER SHAFT BUSHINGS FOR BIG TWIN 78523
$10.10
![STARTER SHAFT BUSHINGS FOR BIG TWIN](http://rt66cycle.com/cdn/shop/products/0076640_550.JPG_6dc53d9b-745b-4334-83c0-cab4f172b395_{width}x.jpg?v=1614565767)
STARTER SHAFT BUSHINGS FOR BIG TWIN 78522
$10.25
![PRIMARY COVER PARTS FOR SPORTSTER 1986/1990](http://rt66cycle.com/cdn/shop/products/0075615_550.JPG_1f887ef5-9f1b-493a-9ba9-c1ef7ea3cac9_{width}x.jpg?v=1614565766)
PRIMARY COVER PARTS FOR SPORTSTER 1986/1990 78521
$13.25
![PRIMARY COVER HARDWARE KITS FOR BIG TWIN & SPORTSTER](http://rt66cycle.com/cdn/shop/products/0069388_primary-cover-hardware-kits-for-big-twin-sportster_550.JPG_4139c20b-61ca-490b-b5d8-ee17b8cf3a88_{width}x.jpg?v=1614565765)
PRIMARY COVER HARDWARE KITS FOR BIG TWIN & SPORTSTER 78516
$41.45
![PRIMARY COVER PLUGS FOR SPORTSTER](http://rt66cycle.com/cdn/shop/products/0079423_550.JPG_c4b8073d-7c8b-45d2-8525-e9db7114f50e_{width}x.jpg?v=1614565763)
PRIMARY COVER PLUGS FOR SPORTSTER 78512
$30.81
![PRIMARY COVER PLUGS FOR SPORTSTER](http://rt66cycle.com/cdn/shop/products/0079320_550.JPG_2be6dede-601a-4622-9c5b-38ec79c30154_{width}x.jpg?v=1614565762)
PRIMARY COVER PLUGS FOR SPORTSTER 78511
$34.53
![PRIMARY COVER PLUGS FOR SPORTSTER](http://rt66cycle.com/cdn/shop/products/0072574_550.JPG_3d3cb8e2-3b85-4b60-9f3d-efa3477312fb_{width}x.jpg?v=1614565761)
PRIMARY COVER PLUGS FOR SPORTSTER 78510
$34.53
![INNER PRIMARY MOUNTING KITS FOR BIG TWIN](http://rt66cycle.com/cdn/shop/products/0068549_550.JPG_0488d723-341a-4812-bbe1-15ade985bbe2_{width}x.jpg?v=1614565759)
INNER PRIMARY MOUNTING KITS FOR BIG TWIN 78506
$20.78
![INNER PRIMARY MOUNTING KITS FOR BIG TWIN](http://rt66cycle.com/cdn/shop/products/0079517_550.JPG_9011bebb-eb44-4538-af8c-e9996dc23992_{width}x.jpg?v=1614565758)
INNER PRIMARY MOUNTING KITS FOR BIG TWIN 78505
$26.62
![TRANSMISSION MAINSHAFT SUPPORT FOR BIG TWIN](http://rt66cycle.com/cdn/shop/products/0073717_550.JPG_9b366120-d7e2-4b13-a6a0-c7878b04456e_{width}x.jpg?v=1614565757)
TRANSMISSION MAINSHAFT SUPPORT FOR BIG TWIN 78504
$26.50
![PRIMARY COVER HARDWARE KITS FOR BIG TWIN & SPORTSTER](http://rt66cycle.com/cdn/shop/products/0081207_primary-cover-hardware-kits-for-big-twin-sportster_550_jpeg_{width}x.jpg?v=1614656787)
PRIMARY COVER HARDWARE KITS FOR BIG TWIN & SPORTSTER 78503
$20.72
![BEARING, BUSHING & SEAL KITS FOR BIG TWIN PRIMARY](http://rt66cycle.com/cdn/shop/products/0079165_550.JPG_c23025c8-3eb0-4d49-9b15-4f6b6991d97c_{width}x.jpg?v=1614565756)
BEARING, BUSHING & SEAL KITS FOR BIG TWIN PRIMARY 78502
$37.60
![BEARING, BUSHING & SEAL KITS FOR BIG TWIN PRIMARY](http://rt66cycle.com/cdn/shop/products/0079174_550.JPG_94846606-0db2-4501-8e87-678fad00e872_{width}x.jpg?v=1614565751)
BEARING, BUSHING & SEAL KITS FOR BIG TWIN PRIMARY 78501
$41.53
![REPLACEMENT PARTS FOR BDL BIG TWIN BELT DRIVE KITS](http://rt66cycle.com/cdn/shop/products/0076611_replacement-parts-for-bdl-big-twin-belt-drive-kits.JPG_8f583659-4534-44ba-bbe1-d032873729bb_{width}x.jpg?v=1614565750)
REPLACEMENT PARTS FOR BDL BIG TWIN BELT DRIVE KITS 78500
$14.90
![PRIMARY COVER GASKETS FOR BIG TWIN & SPORTSTER](http://rt66cycle.com/cdn/shop/products/0078085_550.JPG_35242fbe-6a8b-4dc1-a099-999c87a3398a_{width}x.jpg?v=1614565748)
PRIMARY COVER GASKETS FOR BIG TWIN & SPORTSTER 78499
$24.15