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Drivetrain products for Harley-Davidson®
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).
Armored Attitude Adjuster
$ 299.00
Stronger than the original for those with more abusive inclinations! The BAKER Armored Attitude Adjuster is an insurance policy for your motorcycle in the form of a manual chain tensioner...
34-Tooth Compensator Sprocket for Twin Cam & M8 Models
$ 129.00
BAKER Drivetrain unveils the final solution to the late model compensator problems. The BAKER Drivetrain compensator sprocket is engineered with an annular oil distribution system that scavenges primary oil and...
GrudgeBox Builder's Kit
$ 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...
Spectro Gear Lube
$ 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...
Heavy Duty Throwout Bearing Kit
$ 99.00
People have been griping about the 37311-75 throwout bearing since it was introduced into Big Twins in 1975. Failures occur when the clutch cable is inadvertently adjusted with little to no...
Spectro Primary Oil
$ 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...
F6R: Factory 6-Speed Reverse
$ 2,695.00
Designed, manufactured, tested, proven and beloved - the industry's leading reverse drive for Harley-Davidson is the easiest to use and most worry-free system. Our non-invasive reverse gear system was designed...
Countershaft Bearing Service Tool Kit ToolE-07
$ 159.00
This is a service tool kit in order to remove the stock countershaft bearing in 2007-Later Harleys. P/N ToolE-07 Fitment 2006-Later Dyna and 2007-Later Touring & Softail Benefits This...
Hydraulic Side Cover
$ 525.00
'07-'17 Fitment Taking design cues from our ever increasing product family known as Function Formed, we have wrapped the outer design around the functional components found inside. No garnish, or...
DD7: Direct Drive 7-Speed Builder's Kit
$ 3,695.00
The DD7 upgrades any existing 2006-later big twin 6 speed to a full 7 speed transmission. The BAKER DD7 is more than just another gear added to the mix for...
Red Line Heavy ShockProof Gear Lube
$ 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...
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Haslett, Michigan 48840 USA | Call Us: 517-339-3835
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