Transmission
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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Andrews - 208650 - 4-Speed Mainshaft
Andrews
$268.95Andrews - 208650 - 4-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3503965Specs$268.95 -
Andrews - 208700 - 4-Speed Mainshaft
Andrews
$271.95Andrews - 208700 - 4-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3503970ASpecs$271.95 -
Andrews - 208500 - 4-Speed Mainshaft
Andrews
$273.95Andrews - 208500 - 4-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3504050Specs$273.95 -
Andrews - 206220 - 3rd Gear Mainshaft
Andrews
$102.95Andrews - 206220 - 3rd Gear MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3530659Specs$102.95 -
Andrews - 201020 - 4-Speed Mainshaft Component
Andrews
$311.95Andrews - 201020 - 4-Speed Mainshaft ComponentFeaturesSold individually, unless noted.SpecsRiding StyleS$311.95 -
Andrews - 204280 - 4th Gear Mainshaft
Andrews
$210.95Andrews - 204280 - 4th Gear MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3506777,3506784Specs$210.95 -
Andrews - 201145 - 1st Gear - Close Ratio
Andrews
$178.95Andrews - 201145 - 1st Gear - Close RatioFeaturesSold individually, unless noted.SpecsFirst Gear Ratio2.$178.95 -
Andrews - 258120 - 4-Speed Mainshaft
Andrews
$263.95Andrews - 258120 - 4-Speed MainshaftFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3504671Specs$263.95 -
Andrews - 296110 - 1st Gear Set
Andrews
$219.95Andrews - 296110 - 1st Gear SetFeaturesSold individually, unless noted.SpecsRiding StyleStreet$219.95 -
Andrews - 299105 - Mainshaft Drive Gear - 5th Gear
Andrews
$288.95Andrews - 299105 - Mainshaft Drive Gear - 5th GearFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3503489,3503489ASpecs$288.95 -
Andrews - 299102 - Mainshaft - 2nd Gear
Andrews
$129.95Andrews - 299102 - Mainshaft - 2nd GearFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3577189Specs$129.95 -
Andrews - 296591 - Main Drive Gear With Belt Drive
Andrews
$288.95Andrews - 296591 - Main Drive Gear With Belt DriveFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3502991Specs$288.95 -
Andrews - 296585 - Main Drive Gear with Belt Drive
Andrews
$288.95Andrews - 296585 - Main Drive Gear with Belt DriveFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3502985Specs$288.95 -
Andrews - 296550 - Main Drive Gear with Chain Drive
Andrews
$288.95Andrews - 296550 - Main Drive Gear with Chain DriveFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3502979Specs$288.95 -
Andrews - 296220 - Countershaft Gear - 2nd/3rd Gear
Andrews
$95.95Andrews - 296220 - Countershaft Gear - 2nd/3rd GearFeaturesSold individually, unless notedReplacement Part for OEM Number(s): 3502679ASpecs$95.95 -
Andrews - 255580 - Countershaft - Main Drive Gear
Andrews
$130.95Andrews - 255580 - Countershaft - Main Drive GearFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3569558Specs$130.95 -
Andrews - 210150 - 4-Speed Gear Set - Close Ratio - Fits 1936-1976 Big Twin
Andrews
$978.95Andrews - 210150 - 4-Speed Gear Set - Close RatioFeaturesGears are made from high-nickel alloy steel, heat-treated and shot-peened to give maximum durability and strengthMade in the U.S.A.Specs$978.95 -
Andrews - 296085 - 5-Speed Gear Set - 2.94:1 First Ratio - Fits 1985-1989 Evolution Big Twin
Andrews
$1,428.95Andrews - 296085 - 5-Speed Gear Set - 2.94:1 First RatioFeaturesGears are made from high-nickel alloy steel that is heat-treated and shot-peened for maximum durability and strengthSet includes gears,...$1,428.95 -
Andrews - 299900 - 5-Speed Gear Set - 3.24:1 First Ratio - Fits 1991-2003 XL, 1994-2002 Buell
Andrews
$1,558.95Andrews - 299900 - 5-Speed Gear Set - 3.24:1 First RatioFeaturesGears are made from high-nickel alloy steel that is heat-treated and shot-peened for maximum durability and strengthSet includes gears,...$1,558.95 -
Andrews - 296093 - 5-Speed Gear Set - 3.24:1 First Ratio - Fits 1999-2006 Twin Cam (except 06 Dyna); 1991-1999 Evolution Big Twin
Andrews
$1,428.95Andrews - 296093 - 5-Speed Gear Set - 3.24:1 First RatioFeaturesGears are made from high-nickel alloy steel that is heat-treated and shot-peened for maximum durability and strengthSet includes gears,...$1,428.95 -
Andrews - 210550 - 4-Speed Gear Set - Close Ratio - Fits 77-E84 Big Twin
Andrews
$1,018.95Andrews - 210550 - 4-Speed Gear Set - Close RatioFeaturesGears are made from high-nickel alloy steel, heat-treated and shot-peened to give maximum durability and strengthMade in the U.S.A.Specs$1,018.95 -
Andrews - 210450 - 4-Speed Gear Set - Stock Ratio - Fits 1936-1976 Big Twin
Andrews
$989.95Andrews - 210450 - 4-Speed Gear Set - Stock RatioFeaturesGears are made from high-nickel alloy steel, heat-treated and shot-peened to give maximum durability and strengthMade in the U.S.A.Specs$989.95 -
Andrews - 209750 - Shift Fork - Center Shaft
Andrews
$39.95Andrews - 209750 - Shift Fork - Center ShaftFeaturesOne piece cold-forged forkFully heat treated and black oxide coatedMade in the U.S.A.Replacement Part for OEM Number(s): 3415936Specs$39.95 -
Andrews - 209760 - Shift Fork - Main Shaft
Andrews
$39.95Andrews - 209760 - Shift Fork - Main ShaftFeaturesOne piece cold-forged forkFully heat treated and black oxide coatedMade in the U.S.A.Replacement Part for OEM Number(s): 3415836Specs$39.95 -
Baker Drivetrain - CPRK-BDM - Clutch Kit - 9-Plate Big Dog - Fits 2008-2011 Big Dog models w/ 9-plate clutch
Baker Drivetrain
$349.00Baker Drivetrain - CPRK-BDM - Clutch Kit - 9-Plate Big DogFeaturesReplaces friction and steel plates on Big Dog OEM nine-plate clutches; can also be used to replace 12-plate clutch on '05-'08...$349.00 -
Baker Drivetrain - CD6-602-M8 - Cruise Drive Smooth Shift Kit - M8
Baker Drivetrain
$499.00Baker Drivetrain - CD6-602-M8 - Cruise Drive Smooth Shift Kit - M8FeaturesDesign principles that made Baker Six-Speed Overdrive shift so smooth were applied to create a shift drum/pillow block kit...$499.00 -
Baker Drivetrain - N172-5-A - N1 Shift Drum Kit - 5-Speed '01-'06 FLT/FLH, '01-'05 Dyna, '00-'06 Softail
Baker Drivetrain
MSRP: $598.95$499.00Baker Drivetrain - N172-5-A - N1 Shift Drum Kit - 5-Speed '01-'06 FLT/FLH, '01-'05 Dyna, '00-'06 SoftailFeaturesN1 shift pattern (neutral-1-2-3-4-5) was designed to prevent false neutrals during...MSRP: $598.95$499.00 -
Baker Drivetrain - CD6-602 - Cruise Drive Smooth Shift Kit - Twin Cam
Baker Drivetrain
$499.00Baker Drivetrain - CD6-602 - Cruise Drive Smooth Shift Kit - Twin CamFeaturesDesign principles that made Baker Six-Speed Overdrive shift so smooth were applied to create a shift drum/pillow block kit...$499.00 -
Baker Drivetrain - 172-5-A - Shift Drum Kit - 5-Speed '01-'06 FLT/FLH, '01-'05 Dyna, '00-'06 Softail
Baker Drivetrain
MSRP: $598.95$499.00Baker Drivetrain - 172-5-A - Shift Drum Kit - 5-Speed '01-'06 FLT/FLH, '01-'05 Dyna, '00-'06 SoftailFeaturesFor 5-Speed transmissionsShifter drum grooves have been designed for smoother shifting and...MSRP: $598.95$499.00 -
Baker Drivetrain - 171-5-A - Shift Drum Kit - 5-Speed '98-'00 FLT/FLH/Dyna, '98-'99 Softail
Baker Drivetrain
$373.95Baker Drivetrain - 171-5-A - Shift Drum Kit - 5-Speed '98-'00 FLT/FLH/Dyna, '98-'99 SoftailFeaturesFor 5-Speed transmissionsShifter drum grooves have been designed for smoother shifting and unneeded...$373.95 -
Baker Drivetrain - N170-5-A - 5-Speed N1 Shift Drum Kit - Fits 2000 FLHT/FLHR/FLTR; 1980-1997 FLH/FLT/FLHT/FLHR, Dyna, Softail and 00 FLT/FLHT/FLHR/FLTR
Baker Drivetrain
$374.00Baker Drivetrain - N170-5-A - 5-Speed N1 Shift Drum KitFeaturesN1 shift pattern (neutral-1-2-3-4-5) was designed to prevent false neutrals during aggressive 1-2 upshifts by positioning neutral under...$374.00 -
Baker Drivetrain - 640-67 - Cruise Drive Main Drive Gear Tapered Roller Bearing Kit - Fits 2024-2025 FLHRXS, 24 FLHTK/FLTRK, 2007-2023 FLHT/FLHR/FLHX/FLTRX (except 23 FLHXSE/FLTRXSE)
Baker Drivetrain
$995.00Baker Drivetrain - 640-67 - Cruise Drive Main Drive Gear Tapered Roller Bearing KitFeaturesHeal your Achilles heel with the Baker Main Drive Gear Bearing KitProvides everything you need to eliminate...$995.00 -
Baker Drivetrain - BD-10605-A - Function-Formed™ Transmission Side Cover - Mechanical - Big Twin - Gloss Black
Baker Drivetrain
$425.00Baker Drivetrain - BD-10605-A - Function-Formed™ Transmission Side Cover - Mechanical - Big Twin - Gloss BlackFeaturesFunction-Formed™ style milled from 6061-T6 billet aluminumMinimalistic design...$425.00 -
Baker Drivetrain - M8-10603-A - Transmission Side Cover - Hydraulic - M8 - Black
Baker Drivetrain
$525.00Baker Drivetrain - M8-10603-A - Transmission Side Cover - Hydraulic - M8 - BlackFeaturesFunction-Formed™ style milled from 6061 T-6 aluminumLow-Profile design features allow maximum exhaust...$525.00 -
Baker Drivetrain - M8-10602-A - Transmission Side Cover - Hydraulic - M8 - Polish
Baker Drivetrain
$525.00Baker Drivetrain - M8-10602-A - Transmission Side Cover - Hydraulic - M8 - PolishFeaturesFunction-Formed™ style milled from 6061 T-6 aluminumLow-Profile design features allow maximum exhaust...$525.00 -
Baker Drivetrain - DD7-10602-A - Transmission Cover - Polished
Baker Drivetrain
$479.00Baker Drivetrain - DD7-10602-A - Transmission Cover - PolishedFeaturesLow-profile external features allow maximum exhaust clearanceStainless steel bolts and gasket includedAll side covers have...$479.00 -
Baker Drivetrain - DD7-10603-A - Transmission Cover - Black
Baker Drivetrain
$479.00Baker Drivetrain - DD7-10603-A - Transmission Cover - BlackFeaturesLow-profile external features allow maximum exhaust clearanceStainless steel bolts and gasket includedAll side covers have hydraulic...$479.00 -
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
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.