Transmission
2192 parts
Harley-Davidson transmission parts cover the gears, shafts, shifter components, bearings, seals, gaskets and hardware used to service and rebuild motorcycle transmissions. The category includes transmission gears, mainshafts, countershafts, shift forks, shifter pawls, shift drums, thrust washers and transmission cases. It also includes transmission rebuild kits, gasket and seal kits, kick-starter components, mounting hardware and replacement transmission covers. Parts are available across Sportster, Dyna, Softail, Touring, Big Twin and earlier Harley-Davidson applications.
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Baker Drivetrain - 48403-6 - Transmission Door Assembly - Wrinkle Black
Baker Drivetrain
$395.00Baker Drivetrain - 48403-6 - Transmission Door Assembly - Wrinkle BlackFeaturesManufactured with 6061-T6 Aluminum28% wider bearings when compared to stockThe bearings are retained with a 6-bolt steel...$395.00 -
Baker Drivetrain - 48902-6 - Transmission Door Assembly - Polished
Baker Drivetrain
$495.00Baker Drivetrain - 48902-6 - Transmission Door Assembly - PolishedFeaturesManufactured with 6061-T6 Aluminum28% wider bearings when compared to stockThe bearings are retained with a 6-bolt steel 1/8"...$495.00 -
Baker Drivetrain - 13002-56-A - Dipstick - With O-Ring - Big Twin
Baker Drivetrain
$39.00Baker Drivetrain - 13002-56-A - Dipstick - With O-Ring - Big TwinFeatures1-piece billet aluminum designEnds the problem of the OEM dipstick breaking off and going through your gearsLarger radius on...$39.00 -
Baker Drivetrain - 8876A - 5-Speed Mainshaft/Countershaft Split Cage Needle Bearing
Baker Drivetrain
$12.99Baker Drivetrain - 8876A - 5-Speed Mainshaft/Countershaft Split Cage Needle BearingFeaturesReplacement bearing for 5-Speed Big TwinsSpecs$12.99 -
Baker Drivetrain - HK2520 - 5-Speed Main Drive Gear Needle Bearing - Open End
Baker Drivetrain
$12.99Baker Drivetrain - HK2520 - 5-Speed Main Drive Gear Needle Bearing - Open EndFeaturesReplacement bearing for 5-Speed Big TwinsSpecs$12.99 -
Baker Drivetrain - 6209 - 5-Speed Main Drive Gear Roller Ball Bearing
Baker Drivetrain
$29.99Baker Drivetrain - 6209 - 5-Speed Main Drive Gear Roller Ball BearingFeaturesReplacement bearing for 5-Speed Big TwinsSpecs$29.99 -
Andrews - 299180 - 5-Speed Mainshaft
Andrews
$267.95Andrews - 299180 - 5-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3564089Specs$267.95 -
10% OFF
Arlen Ness - 03-815 - Transmission Cover - Cable - Titanium - Big Twin
Arlen Ness
MSRP: $179.95Now: $80.98Was: $89.98Arlen Ness - 03-815 - Transmission Cover - Cable - Titanium - Big TwinFeaturesReplaces the OEM coverIncludes necessary gaskets and hardwareMatching transmission top covers sold separatelyCable style...MSRP: $179.95Now: $80.98Was: $89.98 -
Baker Drivetrain - BK2526 - 5-Speed Countershaft Bearing - Closed End
Baker Drivetrain
$22.99Baker Drivetrain - BK2526 - 5-Speed Countershaft Bearing - Closed EndFeaturesReplacement bearing for 5-Speed Big TwinsSpecs$22.99 -
Andrews - 299110 - 1st Gear Set
Andrews
$259.95Andrews - 299110 - 1st Gear SetFeaturesSold individually, unless noted.SpecsFirst Gear Ratio2.61:1<$259.95 -
Andrews - 296800 - 5-Speed Mainshaft
Andrews
$331.95Andrews - 296800 - 5-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3504279Specs$331.95 -
Andrews - 299103 - Mainshaft - 3rd Gear
Andrews
$129.95Andrews - 299103 - Mainshaft - 3rd GearFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3577289Specs$129.95 -
10% OFF
Arlen Ness - 03-865 - 10 Gauge Transmission Cover - Titanium - M8
Arlen Ness
MSRP: $209.95Now: $94.48Was: $104.98Arlen Ness - 03-865 - 10 Gauge Transmission Cover - Titanium - M8FeaturesReplaces OEM transmission side coverIncludes necessary gaskets and hardwareSpecsMSRP: $209.95Now: $94.48Was: $104.98 -
Andrews - 208800 - 4-Speed Mainshaft
Andrews
$284.95Andrews - 208800 - 4-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3503985Specs$284.95 -
Baker Drivetrain - 33344-94S - Transmission Sprocket Spacer - Fits 1999-2006 Twin Cam (except 06 FXD/FXDWG); repl. OEM #33344-94; L1994-1999 Big Twin; repl. OEM #33344-94
Baker Drivetrain
$39.00Baker 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...$39.00 -
10% OFF
Arlen Ness - 03-855 - Transmission Cover - Titanium - Twin Cam
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-855 - Transmission Cover - Titanium - Twin CamFeaturesReplaces OEM transmission side coverIncludes necessary gaskets and hardwareSpecsMSRP: $179.95Now: $161.96Was: $179.95 -
10% OFF
Arlen Ness - 03-863 - 10 Gauge Top Transmission Cover - Black - M8
Arlen Ness
MSRP: $199.95Now: $179.96Was: $199.95Arlen Ness - 03-863 - 10 Gauge Top Transmission Cover - Black - M8FeaturesMachined from billet aluminumIncludes necessary gasket and hardwareSpecsMSRP: $199.95Now: $179.96Was: $199.95 -
10% OFF
Arlen Ness - 03-814 - Transmission Cover - Cable - Black - Big Twin
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-814 - Transmission Cover - Cable - Black - Big TwinFeaturesReplaces the OEM coverIncludes necessary gaskets and hardwareMatching transmission top covers sold separatelyCable style...MSRP: $179.95Now: $161.96Was: $179.95 -
10% OFF
Arlen Ness - 03-823 - Transmission Cover - Hydraulic - Black - Big Twin
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-823 - Transmission Cover - Hydraulic - Black - Big TwinFeaturesReplaces the OEM coverIncludes necessary gaskets and hardwareMatching transmission top covers sold separatelyCable style...MSRP: $179.95Now: $161.96Was: $179.95 -
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 -
10% OFF
Arlen Ness - 03-853 - 10 Gauge Top Transmission Cover - Black
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-853 - 10 Gauge Top Transmission Cover - BlackFeaturesMachined from billet aluminumIncludes necessary gasket and hardwareSpecsMSRP: $179.95Now: $161.96Was: $179.95 -
10% OFF
Arlen Ness - 03-862 - 10 Gauge Top Transmission Cover - Chrome - M8
Arlen Ness
MSRP: $199.95Now: $179.96Was: $199.95Arlen Ness - 03-862 - 10 Gauge Top Transmission Cover - Chrome - M8FeaturesMachined from billet aluminumIncludes necessary gasket and hardwareSpecsMSRP: $199.95Now: $179.96Was: $199.95 -
10% OFF
Arlen Ness - 03-852 - 10 Gauge Top Transmission Cover - Chrome
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-852 - 10 Gauge Top Transmission Cover - ChromeFeaturesMachined from billet aluminumIncludes necessary gasket and hardwareSpecsMSRP: $179.95Now: $161.96Was: $179.95 -
10% OFF
Arlen Ness - 03-822 - Transmission Cover - Hydraulic - Chrome
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-822 - Transmission Cover - Hydraulic - ChromeFeaturesReplaces the OEM coverIncludes necessary gaskets and hardwareMatching transmission top covers sold separatelyCable style cover...MSRP: $179.95Now: $161.96Was: $179.95 -
10% OFF
Arlen Ness - 03-813 - Transmission Side Cover - Cable - Black - Big Twin
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-813 - Transmission Side Cover - Cable - Black - Big TwinFeaturesCarved from 6061 T-6 billet aluminumReplaces OEM coverIncludes necessary gaskets and hardwareSpecsMSRP: $179.95Now: $161.96Was: $179.95 -
Baker Drivetrain - OD6-404P2-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-404P2-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - TRK-CD6 - Transmission Rebuild Kit - '07-'23 Softail/Touring, '06-'17 Dyna with Cruise Drive
Baker Drivetrain
$599.00Baker 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,...$599.00 -
Baker Drivetrain - TRK-FLSTX-E - Transmission Rebuild Kit
Baker Drivetrain
$429.00Baker 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...$429.00 -
Baker Drivetrain - TRK-DYN - Transmission Rebuild Kit - Fits 1994-2005 FXD/FXDWG and Baker Drivetrain OD6/DD6/DD5; 1991-1998 FXD/FXDWG and Baker Drivetrain OD6/DD6/DD5 (main drive gear bearings)
Baker Drivetrain
$429.00Baker 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...$429.00 -
Baker Drivetrain - TRK-FLSTX - Transmission Rebuild Kit
Baker Drivetrain
$429.00Baker 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...$429.00 -
Baker Drivetrain - OD6-404SP-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-404SP-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-404SP-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-404SP-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-401S-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-401S-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-401P-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-401P-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-401-03 - 6-Speed Gear Set - Black
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-401-03 - 6-Speed Gear Set - BlackFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-401-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-401-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-401S-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-401S-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-404P2-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-404P2-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-404P-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-404P-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00 -
Baker Drivetrain - OD6-401P-02 - 6-Speed Gear Set - Polished
Baker Drivetrain
$3,395.00Baker Drivetrain - OD6-401P-02 - 6-Speed Gear Set - PolishedFeaturesIncludes trap door, all gears, mainshaft, countershaft, shifter drum, detent components, bearings, snap rings, gaskets and...$3,395.00
Harley-Davidson Transmission Parts – Gears, Shafts, Shifter Components & Rebuild Kits
Harley-Davidson transmission parts include the internal and external components used to maintain, repair and rebuild motorcycle transmissions. The selection covers transmission gears, mainshafts, countershafts, gear clusters, spacers, thrust washers, bearings, races, retaining rings and oil seals. Harley-Davidson transmission assemblies use separate mainshaft and countershaft components with individual gears, bearings, spacers and related hardware, making these parts important when servicing worn or damaged transmission assemblies. The category includes components for 4-speed, 5-speed and 6-speed transmissions across a wide range of Harley-Davidson models and generations.
Shifting components form another major part of the category, including shifter forks, fork shafts, shift drums, shifter pawls, pawl carriers, cam plates, shift links, springs, studs and shifter levers. Products such as transmission top covers, mounting plates, transmission doors, case sections, fill plugs, vent screws and mounting hardware support transmission housing and external service work. The selection also includes transmission rebuild kits, complete gasket and seal kits, individual transmission gaskets, main drive gear seals, sprocket shaft seals and replacement bearings for different Harley-Davidson transmission configurations. Harley-Davidson service documentation identifies shifter fork shafts, shifter forks, mainshafts, countershafts and multiple gear assemblies as distinct transmission service components.
The category also covers older and specialized transmission components, including kick starter parts, kick-start shafts, gears, springs, ratchet components, conversion kits, jockey-style transmissions and 4-speed transmission assemblies. Applications range from early WL, EL, UL, FL and Servi-Car models through Sportster, Dyna, Softail and Touring motorcycles, with later 5-speed and 6-speed components covering newer transmission designs. Transmission hardware, fasteners, thrust washers, spacers, seals and bearings can be used alongside internal gear and shaft components during a transmission rebuild, while shifter and kick-start parts address the external controls and mechanisms used to operate different Harley-Davidson transmission configurations.