There's no comparison to BAKER Drivetrain products. Our firm commitment to quality American-made parts—designed and built by the people who ride them—delivers an uncompromising product that lasts.
Improve the performance of your American V-Twin Harley-Davidson®
BAKER Drivetrain was started in 1998 because engines were making more power, but nobody was taking the drivetrain seriously. Choose the right drivetrain, chassis, and rear wheel to put the power to the ground.
All BAKER aftermarket motorcycle parts are designed and manufactured right here in America. BAKER Drivetrain continues to introduce new solutions based on empirically-based inspiration as they ride their American V-Twins and get ideas from their American riding buddies using their proven engineering methodologies.
The components for the Harley-Davidson® drivetrain aftermarket we offer are broken up into 4 catalogs: Cruise Drive era (2007-later), 5-speed era (1984-2006), 4-speed era (1936-86), and Custom/Performance (includes Big Dog and Sportster/Buell).
$ 3,695.00
The GrudgeBox is a tough overdrive 6-speed to replace your stock 6-speed! The GrudgeBox was engineered with a focus on excessive torque capacity and crisp shifting. All gears are straight...
$ 30.43
Picking the right transmission fluid ensures the life and durability of your transmission, that’s why BAKER recommends a fully synthetic GL-5 rated gear weight oil of 75W-140. The Spectro Heavy...
$ 3,195.00
This is the ORIGINAL 6-speed design that revolutionized the American V-Twin industry. It’s still the best overdrive 6-speed built to this day…hands down. Our OD6 is built to comfortably handle...
$ 13.88
Picking the right primary fluid ensures the life and durability of your primary, that’s why BAKER recommends a 85W primary oil like the Spectro Heavy Duty Primary Oil. This Spectro...
$ 3,195.00
* Limited supply of chrome bearing doors with ear available. Please give us a call at 517-339-3835 to order a chrome bearing door. From an engineering standpoint, it is difficult...
$ 49.00
Replacement Fat Shoe for special applications. Fitment: Please refer to the Sprocket/Chain Matrix in order to figure out fitment. PN DD6-178
$ 29.00
Have you ever heard of a 5-speed transmission dipstick breaking off and working its way into the gearbox with disastrous results? Ask any seasoned technician; he’s seen one. The low...
$ 4,395.00
* Limited supply of chrome bearing doors available. Please give us a call at 517-339-3835 to order a chrome bearing door. This is the ORIGINAL 6-speed design that revolutionized the...
$ 23.97
Picking the right transmission fluid ensures the life and durability of your transmission, that’s why BAKER recommends a fully synthetic GL-5 rated gear weight oil of 75W-140.The Red Line Heavy...
$ 159.00
The BAKER primary chain adjuster bracket looks like the stock 39990-01 style bracket but has 28% more adjuster teeth. The finer pitch teeth make it easier to dial in your...
$ 4,395.00
* Limited supply of chrome bearing doors available. Please give us a call at 517-339-3835 to order a chrome bearing door. If you enjoy riding for long periods of time...
$ 35.00
2000-2006 Softail Models Require BAKER PN TCSO-A, Oil Line Adapter Kit Fitment 2000-2006 Softail (Twin Cam) Detail PN: TCSO-A