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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).
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...
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...
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...
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
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...
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
Cruise Drive Primary Bundle
$ 999.00 $ 997.00
This kit is everything you need to update your cruise drive primary. It includes: Product Part Number Retail Cost Comp Sprocket 730-67 or 730-M8 $599 Armored Attitude Adjuster 177-67...
+1.5 Oil Pan
$ 795.00
Keep your 2009-2016 Touring Model cool. Todays Big Twin engine makes a lot more power and a lot more heat than its predecessor of 20 years ago. In 1993, the...
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...
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...
30-Tooth Compensator Sprocket Kit
$ 129.00
The 30-Tooth Comp Sprocket Kit made it on the 2024 Powersports Business Nifty 50 List! Check out the Nifty 50 list here. WAKE UP YOUR ENGINE! The NEW BAKER 30-Tooth...
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...
The BAKER Cable-Type Side Cover
$ 299.00
The NEW BAKER Cable-Type Side Cover was designed with minimal waste and purposeful mechanical intent. Machined from certified 6061-T6 Billet Aluminum, compatible with OEM or aftermarket transmissions. The BAKER Cable-Type...
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...
S&S Adapter kit for the BAKER +1
$ 140.00
We highly recommend the +1 Oil Pan for S&S© T124 applications. It makes a lot of power and a lot of heat. The oil feed and return on the right...
DD7: Direct Drive 7-Speed Complete Transmission
$ 6,395.00
This is for a complete transmission, case and all. The sprocket/pulley is not included in the complete transmission assembly. For the acquisition of these components, kindly contact BAKER Drivetrain at...
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Haslett, Michigan 48840 USA | Call Us: 517-339-3835
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