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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...
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...
Primary Rebuild Kits
$ 119.00
This all-inclusive convenient kit is designed to freshen up those high mileage bikes, prevent leakage, and includes everything you’ll need after opening up your primary. Includes gaskets, seals and O-rings....
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...
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...
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...
Replacement Sprocket Spacer Seal
$ 14.95
This is a replacement sprocket spacer seal that we found lasts longest. Fitment 2.219 x 3.375 x 0.266 PN 12067B
Replacement Clutch Pack Kits
$ 199.00
Clutch Pack Kits for BAKER clutchesBAKER Clutch Pack Replacement Kits contain all necessary fiber and steel plates to restore like new performance to your BAKER clutch. These are original equipment plates...
Factory 6-Speed Tapered Roller Bearing Kit
$ 995.00
Heal your Achilles heel with the BAKER Main Drive Gear Bearing Kit for 2007-up Big Twins! P/N 640-67 Kit includes BAKER double tapered roller bearing assembly Replacement HD main...
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
Speedometer Recalibration Unit
$ 169.00
Starting in 1994, the factory started using electronic speedos on some of the models. Today, all models use this. If you are changing the transmission pulley, rear wheel pulley, rear...
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...
Shift Forks for 2005-2010 Big Dog
$ 279.00
OEM replacement shift forks for Big Dog models from 2005-2010 Fitment 2005-2010 Big Dog models Detail PN: 191B-DD6R (4-5 Dog Clutch Fork) PN: 192B-DD6R (2nd Gear Fork) PN: 193B-DD6R (3rd...
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
9-Plate Ball & Ramp for Big Dogs
$ 3.00
OEM replacement ball and ramp set for Big Dog models from 2005-2010 with 9-plate clutch configuration. 9-Plate Ball and ramp is required when upgrading from 12-plate to 9-plate configurations. Fitment...
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...
11165A O-ring for Quad Seal
$ 1.99
#031 Buna O-ring for Quad Seal PN 11165A
Kicker Accessories
$ 95.00
Pedal We used to purchase our pedal assemblies from a supplier, these assemblies were prone to break, due to being made out of shit metal. So after receiving many death...
120-DD6R Dual Lip Seal
$ 16.99
Dual lip seal DC35MMx52MMx10MM PN 120-DD6R
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...
121-DD6R Seal
$ 9.99
Left side countershaft end cap seal, 52mm X 6.5mm PN 121-DD6R
Primary O-ring for 2005-2010 Big Dog
$ 39.99
OEM replacement primary case o-ring, 55″ Viton. For Big Dog models from 2005-2010. Fitment 2005-2010 Big Dog models Detail PN: 3026A-DSSC
Klassic Kicker Gears
$ 399.00
We started making 6-into-4 transmissions with kickers over ten years ago. At the time, we could only purchase some Taiwanese shit kicker gears in volume because nobody made them...
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...
Street Door
$ 395.00
The Street Door is manufactured with 6061-T6 aluminum and features 28% wider bearings over stock. The bearings are retained with a 6-bolt steel 1/8″ plate, phantom clutch lever movement is...
Cruise Drive Smooth Shift Kit
$ 399.00
The design principles that made our Six-Speed Overdrive shift so smooth were applied to create a shift drum kit that will bolt onto any cruise drive 6-speed and give super...
11067 - M30 Snap Ring
$ 2.99
Snap Ring, M30, Eaton Style, Heavy Duty PN 11067
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...
Early Model Comp Sprocket
$ 395.00
Sprocket for the 1985-2006 (except 06 Dyna) compensator. Sprocket & Chain Matrix Features American made heat treated sprockets, which will help with torque increases. 22 tooth 14% increase BenefitsIt’s...
4-Speed Kicker Covers
$ 695.00
Kick starting a 74-inch motor with 7.5:1 compression ratio is one thing; kicking a healthy 93-inch motor is quite another. Our kicker covers are designed with structural overkill to handle...
Cruise Drive Upgrade Bundle
$ 1,850.00
This discounted bundle will help repair your stock Cruise Drive transmission. Normally, these parts would cost: Part Normal Retail Cost Primary Rebuild Kit $149 for M8 applications Street Door $395...
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...
Oil Spout Spacer Kit
$ 40.00
If you install a high horsepower starter motor on your 1993-2006 FLT-FLH, the oil spout will interfere with the end of the starter motor. Our spout spacer kit moves the...
1987-2006 Speedo Sensor Hole Plug
$ 21.00
If you need to cap off the speedo sensor hole for whatever reason, you need this plug. Some other companies do this with a steel plate and a gasket, just...
12530C-GAS +1.5 Oil Pan Center Gasket
$ 25.00
Center Oil Pan Gasket for the +1.5 BAKER Oil pan. Spec. .062" PN 12530C-GAS
DD7 Main Drive Gear Tapered Roller Bearing Kit
$ 995.00
Heal your Achilles heel with the BAKER Main Drive Gear Bearing Kit for the BAKER Direct Drive 7-Speed. P/N 740-67 Kit includes BAKER double tapered roller bearing assembly Replacement DD7 main...
Pulleys for Sportsters
$ 199.00
In addition to the 4% more torque, our pulleys are lighter and stronger than stock. Less weight translates to reduced ‘flywheel effect’ and quicker revs. Features Stock Sportster/Buell transmission pulleys...
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Haslett, Michigan 48840 USA | Call Us: 517-339-3835
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