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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).
High Torque Bearing Kit
$ 17.99
The 34091-85 inner bearing race has been used on Big Twins since 1985. The inner primary bearing rides on this race. By design, this race press-fits onto the transmission mainshaft. This...
Truss Style Shift Lever Kit
$ 99.00
Known to fail, BAKER took the all-too-common-looking stock shifter and improved it in every way with a new design. The most common issue with the stock transmission shift lever...
Transmission Rebuild Kits
$ 379.00
Features This kit was put together to assist you with that high mileage rebuild. When your transmission has reached its limit of efficiency and smooth shifting, it’s time for that...
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...
Anti Overshift Ratchet Pawl
$ 249.00
The stock ratchet pawl used from 1980 to 2000 utilized scissor spring that was well known for breaking. The unfortunate side effect of this failure is the broken spring leg...
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...
OD6: Overdrive 6-Speed Builder's Kit
$ 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...
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...
Replacement Pawl Shaft Seal
$ 6.99
This is a replacement pawl shaft seal that we found to last the longest. Fitment Size 4.37 x .875 x .25
N1 Shift System
$ 349.00
The N1 Shift Drums have a 0-down all-up shifting pattern and eliminate any possibility of catching neutral on aggressive 1-2 shifts. Neutral is below 1st. The N1 drum is also...
DD6: Direct Drive 6-Speed Builder's Kit
$ 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...
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...
Replacement Main Drive Gear Bore End Seal
$ 9.99
This is a replacement main drive gear bore end seal. It's great! Fitment Size: 25 x 32 x 06
Spacer for Sprocket or Pulley
$ 27.99
33344-94S If you are a seasoned technician, you have seen a severely worn sprocket spacer. Over time and miles with dirt and grit, the stock 33344-94 spacer is too soft...
Primary Chain Adjuster Shoe
$ 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
Transmission Dipstick
$ 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...
OD6: Overdrive 6-Speed Complete Transmission
$ 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...
Replacement Neutral Switch
$ 14.25
Replacement neutral switches that have been tested to be dependable. See the next "Fitment" tab to identify which is for the application that you need. Fitment Application 1: PN 21-436 (Fitment...
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...
Fine Tooth Adjustment Kit
$ 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...
167-5-A - 5-speed Billet Steel Shift Forks
$ 279.00
Our Shift Fork Kits include all three forks and are a direct replacement for the standard O.E. 5-speed forks but with much needed improvements over the stock design. Cross section...
Smooth Shift Kit
$ 349.00
The design principles that made our Six-Speed Overdrive shift so smooth were applied to create a shift drum/pillow block kit that will bolt on to any 5-speed and give super...
Billet Speedometer Sensor
$ 139.00
Our simple, sleek and clean show polished speedometer sensor keeps a stylish low profile to the transmission case. For those with an attention to detail, this is certainly a noticeable...
DD6: Direct Drive 6-Speed Complete Transmission
$ 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...
Ignition Kill Shift Kit
$ 359.00
This slick 5-speed left side drive ignition kill shift kit from BAKER Drivetrain was developed for one thing in mind, Winning! Anybody who wants to launch hard and then up...
Brake Pad Kit for Drive Brake Transmissions
$ 77.00
Brake Pad Kit for Drive Brake Transmissions is a replacement kit for BAKER Drive Brake dual piston setup which utilizes Performance Machine internal components. Features Brake Pads Bypass O-Ring Fitment...
0.875" Offset Aluminum Pulley
$ 225.00 $ 250.00
32 Tooth Aluminum Pulley with 0.875" Offset PN WT878 Fits 1985-2006 Big Twin and 1991-2003 Sportsters
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Haslett, Michigan 48840 USA | Call Us: 517-339-3835
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