Baker Drivetrain
Baker Drivetrain is a premier manufacturer of high-performance Harley-Davidson transmission systems, precision gear sets and drivetrain components. Built for long-term durability and smooth, accurate shifting, Baker products enhance torque handling, gear stability and overall drivetrain reliability. From DD6/DD7 gear sets to primary rebuild kits and heavy-duty bearing upgrades, their components deliver improved performance for Twin Cam, Evo and Milwaukee-Eight models. Riders and builders trust Baker for industry-leading craftsmanship and proven drivetrain engineering.
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Baker Drivetrain - 6304 - 5-Speed Transmission Door Bearing
Baker Drivetrain
$14.99Baker Drivetrain - 6304 - 5-Speed Transmission Door BearingFeaturesReplacement bearing for 5-Speed Big TwinsSpecsRiding StyleStreetProduct NameBearingUnitsEachTypeTransmission DoorFitment2005...$14.99 -
Baker Drivetrain - 12067B - 5-Speed Main Drive Gear Seal
Baker Drivetrain
$8.99Baker Drivetrain - 12067B - 5-Speed Main Drive Gear SealFeaturesReplacement seal for 5-Speed Big TwinsSpecsUnitsEachRiding StyleStreetTypeMain Drive GearProduct NameSealFitment2002-2006...$8.99 -
Baker Drivetrain - 8876A - 5-Speed Mainshaft/Countershaft Split Cage Needle Bearing
Baker Drivetrain
$8.99Baker Drivetrain - 8876A - 5-Speed Mainshaft/Countershaft Split Cage Needle BearingFeaturesReplacement bearing for 5-Speed Big TwinsSpecsRiding StyleStreetUnitsEachTypeNeedle BearingProduct...$8.99 -
Baker Drivetrain - HK2520 - 5-Speed Main Drive Gear Needle Bearing - Open End
Baker Drivetrain
$8.99Baker Drivetrain - HK2520 - 5-Speed Main Drive Gear Needle Bearing - Open EndFeaturesReplacement bearing for 5-Speed Big TwinsSpecsProduct NameBearingRiding StyleStreetUnitsEachTypeMain Drive...$8.99 -
Baker Drivetrain - 6209 - 5-Speed Main Drive Gear Roller Ball Bearing
Baker Drivetrain
$21.99Baker Drivetrain - 6209 - 5-Speed Main Drive Gear Roller Ball BearingFeaturesReplacement bearing for 5-Speed Big TwinsSpecsProduct NameBearingUnitsEachTypeMain Drive GearRiding StyleStreetFitment2005...$21.99 -
Baker Drivetrain - BK2526 - 5-Speed Countershaft Bearing - Closed End
Baker Drivetrain
$10.99Baker Drivetrain - BK2526 - 5-Speed Countershaft Bearing - Closed EndFeaturesReplacement bearing for 5-Speed Big TwinsSpecsProduct NameBearingTypeCountershaftRiding StyleStreetUnitsEachFitment1980...$10.99 -
Baker Drivetrain - 33344-94S - Transmission Sprocket Spacer
Baker Drivetrain
$27.00Baker Drivetrain - 33344-94S - Transmission Sprocket SpacerFeaturesCase-hardened steel with a Rockwell "C" hardness of 55 and a polished finishDirect replacement for stock '94-'06 Big Twins (except...$27.00 -
Out of stock
Baker Drivetrain - TRK-DYN-E - Transmission Rebuild Kit - '91-'93 Dyna
Baker Drivetrain
$379.00Baker Drivetrain - TRK-DYN-E - Transmission Rebuild Kit - '91-'93 DynaFeaturesAll-inclusive kit to allow a full transmission rebuildKit includes all seals, bearings, snap rings, gaskets, and...$379.00 -
Baker Drivetrain - OD6-404P2-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-404P2-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - TRK-CD6 - Transmission Rebuild Kit - '07-'23 Softail/Touring, '06-'17 Dyna with Cruise Drive
Baker Drivetrain
$379.00Baker Drivetrain - TRK-CD6 - Transmission Rebuild Kit - '07-'23 Softail/Touring, '06-'17 Dyna with Cruise DriveFeaturesAll-inclusive kit to allow a full transmission rebuildKit includes all seals,...$379.00 -
Baker Drivetrain - TRK-FLSTX-E - Transmission Rebuild Kit
Baker Drivetrain
$379.00Baker Drivetrain - TRK-FLSTX-E - Transmission Rebuild KitFeaturesAll-inclusive kit to allow a full transmission rebuildKit includes all seals, bearings, snap rings, gaskets, and retaining nuts need...$379.00 -
Baker Drivetrain - TRK-DYN - Transmission Rebuild Kit
Baker Drivetrain
$379.00Baker Drivetrain - TRK-DYN - Transmission Rebuild KitFeaturesAll-inclusive kit to allow a full transmission rebuildKit includes all seals, bearings, snap rings, gaskets, and retaining nuts need to...$379.00 -
Baker Drivetrain - TRK-FLSTX - Transmission Rebuild Kit
Baker Drivetrain
$379.00Baker Drivetrain - TRK-FLSTX - Transmission Rebuild KitFeaturesAll-inclusive kit to allow a full transmission rebuildKit includes all seals, bearings, snap rings, gaskets, and retaining nuts need to...$379.00 -
Baker Drivetrain - OD6-404SP-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-404SP-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-404SP-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-404SP-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-401S-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-401S-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-401P-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-401P-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-401-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-401-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-401-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-401-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-401S-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-401S-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-404P2-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-404P2-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-404P-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-404P-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - OD6-401P-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,195.00Baker Drivetrain - OD6-401P-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,195.00 -
Baker Drivetrain - 10902-56-A - Spacer Kit - Oil Spout - Touring
Baker Drivetrain
$40.00Baker Drivetrain - 10902-56-A - Spacer Kit - Oil Spout - TouringFeaturesMoves oil spout out 11/32" to clear longer startersMade in the USAKit Includes:One 6061-T6 aluminum spacerTwo gasketsFour...$40.00 -
Baker - DD7-Speed Gear Set - Black Door fits '17-'22 M8 Models
Baker Drivetrain
$3,695.00Baker - DD7-Speed Gear Set - Black Door fits '17-'22 M8 Models The seventh gear in this gear set allows the motorcycle to make full use — by way of gear ratio management — of the torque...$3,695.00 -
Baker - DD6-Speed Gear Set fits '99-'00 Touring Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '99-'00 Touring Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting shoe, a fixed...$3,195.00 -
Baker - DD7-Speed Gear Set Black Door fits '06-'17 Big Twin Models
Baker Drivetrain
$3,695.00Baker - DD7-Speed Gear Set Black Door fits '06-'17 Big Twin Models The seventh gear in this gear set allows the motorcycle to make full use — by way of gear ratio management — of the...$3,695.00 -
Baker - DD7-Speed Gear Set Polished Door fits '06-'17 Big Twin Models
Baker Drivetrain
$3,695.00Baker - DD7-Speed Gear Set Polished Door fits '06-'17 Big Twin Models The seventh gear in this gear set allows the motorcycle to make full use — by way of gear ratio management — of the...$3,695.00 -
Baker - DD6-Speed Gear Set fits '01-'06 Touring Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '01-'06 Touring Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting shoe, a fixed...$3,195.00 -
Baker - DD6-Speed Gear Set fits '00-'06 Softail & '01-'05 Dyna Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '00-'06 Softail & '01-'05 Dyna Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an...$3,195.00 -
Baker - DD6-Speed Gear Set fits '90-'97 FXR & Touring Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '90-'97 FXR & Touring Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting...$3,195.00 -
Baker - DD6-Speed Gear Set fits '90-'97 Dyna & Softail Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '90-'97 Dyna & Softail Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting...$3,195.00 -
Baker - DD7-Speed Gear Set Polished Door fits '17-'22 M8 Models
Baker Drivetrain
$3,695.00Baker - DD7-Speed Gear Set Polished Door fits '17-'22 M8 Models The seventh gear in this gear set allows the motorcycle to make full use — by way of gear ratio management — of the torque...$3,695.00 -
Baker - DD6-Speed Gear Set fits '90-'97 Touring & Softail Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '90-'97 Touring & Softail Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting...$3,195.00 -
Baker - DD6-Speed Gear Set fits '00-'06 Softail Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '00-'06 Softail Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting shoe, a fixed...$3,195.00 -
Baker - DD6-Speed Gear Set fits '98-'00 Touring & FXR Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '98-'00 Touring & FXR Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting...$3,195.00 -
Baker - DD6-Speed Gear Set fits '90-'97 Touring & FXR Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '90-'97 Touring & FXR Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting...$3,195.00 -
Baker - DD6-Speed Gear Set fits '01-'06 Harley Touring Models
Baker Drivetrain
$3,195.00Baker - DD6-Speed Gear Set fits '01-'06 Harley Touring Models This is a 6-speed gear set (3.24:1 1st gear/.86:1 6th gear) with a 28-tooth motor sprocket, a longer primary chain, an adjusting shoe, a...$3,195.00 -
Baker - Armored Attitude Chain Adjuster fits '06-'17 Dyna, '07-'17 Softail and '07-'23 Touring Models
Baker Drivetrain
$299.00Baker - Armored Attitude Chain Adjuster fits '06-'17 Dyna, '07-'17 Softail and '07-'23 Touring Models Features 28% finer teeth spacing (compared to '01-'06 chain adjuster) for more accurate...$299.00 -
Baker - High Torque Replacement Seal fits '99-'06 Harley Twin Cam
Baker Drivetrain
$17.50Baker - High Torque Replacement Seal fits '99-'06 Harley Twin Cam If your Harley has got some serious horsepower then this is just what you need. The Baker High Torque Replacement Seal is made to...$17.50
Baker Drivetrain Harley-Davidson Transmission Systems & Gear Set Upgrades – Smooth Shifting & Maximum Durability
Baker Drivetrain is widely recognized for producing some of the most reliable and precisely engineered transmission components for Harley-Davidson motorcycles. Their lineup includes premium gear sets, transmission rebuild kits, shift drum upgrades, bearing kits and drivetrain hardware designed to improve shift quality, torque handling and long-term durability. Built in the USA with high-grade materials, Baker components help reduce drivetrain noise, enhance stability and deliver smoother engagement across Twin Cam, Evo and Milwaukee-Eight platforms.
Their highly respected DD6 and DD7 gear sets provide tighter ratios, improved highway performance, and increased strength for riders who demand more from their bikes. Baker also offers high-torque bearing kits, primary rebuild kits, kicker gear sets, transmission side covers and heavy-duty throwout bearings engineered for maximum longevity. These upgrades ensure proper alignment, reduced wear and consistent power delivery, even under aggressive riding or long-distance touring.
Whether restoring a classic 4-speed, rebuilding a 5-speed Big Twin or strengthening a modern 6-speed transmission, Baker Drivetrain provides exact-fit solutions trusted by performance shops and serious Harley builders. With a commitment to precision, durability and real-world dependability, Baker remains one of the most respected names in Harley-Davidson drivetrain performance. Their components help riders achieve smoother shifts, more stable power transfer and a transmission built to handle high torque and high mileage with confidence.