Transmission
2235 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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Out of stock
Andrews - 296125 - Mainshaft - 1st Gear
Andrews
$116.95Andrews - 296125 - Mainshaft - 1st GearFeaturesSold individually, unless noted.Replacement Part for OEM Number(s): 3502579Specs$116.95 -
Out of stock
Andrews - 296120 - Transmission Gear - 1st Gear
Andrews
$123.97Andrews - 296120 - Transmission Gear - 1st GearFeaturesSold individually, unless notedReplacement Part for OEM Number(s): 3562279ASpecs$123.97 -
Out of stock
Andrews - 296081 - 5-Speed Gear Set - 2.94:1 First Ratio - Fits 81-E84 FLT/FLHT, 82-E84 FXR
Andrews
$1,414.95Andrews - 296081 - 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,...$1,414.95 -
Out of stock10% OFF
Arlen Ness - 03-864 - 10 Gauge Transmission Cover - Black - M8
Arlen Ness
MSRP: $209.95Now: $188.96Was: $209.95Arlen Ness - 03-864 - 10 Gauge Transmission Cover - Black - M8FeaturesReplaces OEM transmission side coverIncludes necessary gaskets and hardwareSpecsMSRP: $209.95Now: $188.96Was: $209.95 -
Out of stock10% OFF
Arlen Ness - 03-854 - Transmission Cover - Black - Twin Cam
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-854 - Transmission Cover - Black - Twin CamFeaturesReplaces OEM transmission side coverIncludes necessary gaskets and hardwareSpecsMSRP: $179.95Now: $161.96Was: $179.95 -
Out of stock10% OFF
Arlen Ness - 03-812 - Transmission Side Cover - Cable - Chrome - Big Twin
Arlen Ness
MSRP: $179.95Now: $161.96Was: $179.95Arlen Ness - 03-812 - Transmission Side Cover - Cable - Chrome - Big TwinFeaturesCarved from 6061 T-6 billet aluminumReplaces OEM coverIncludes necessary gaskets and hardwareSpecsMSRP: $179.95Now: $161.96Was: $179.95 -
Out of stock
Andrews - 201090 - 4-Speed Mainshaft Component
Andrews
$213.95Andrews - 201090 - 4-Speed Mainshaft ComponentFeaturesSold individually, unless noted.SpecsProduct NameG$213.95 -
Out of stock
Performance Machine (Pm) - 0066-2008-CH - Transmission Cover
Performance Machine
$446.95Performance Machine (Pm) - 0066-2008-CH - Transmission CoverFeaturesPerfect match for Performance Machine's Contour master cylinder for optimal clutch actionFluted and smooth and has aluminum...$446.95 -
Out of stock
Performance Machine (Pm) - 0203-2017-CH - Transmission Cover - Chrome - Formula
Performance Machine
$302.95Performance Machine (Pm) - 0203-2017-CH - Transmission Cover - Chrome - FormulaFeaturesCNC machined from billet aluminumDesigned as a direct replacement for OEM transmission top coverEasy bolt-on...$302.95 -
Out of stock
Jims - 987 Cruise Drive/6-Speed Main Bearing Installer Tool fits '07-'20 Big Twin & '06 Dyna Models
Jims
$298.90Jims - 987 Cruise Drive/6-Speed Main Bearing Installer Tool fits '07-'20 Big Twin & '06 Dyna Models Features: Safely installs new main transmission case bearing; does not remove bearing$298.90 -
Out of stock
Jims - 911 Cruise Drive/6-Speed Trap Door Bearing Remover/Installer fits '07-'20 Big Twin & '06 Dyna Models
Jims
$384.70Jims - 911 Cruise Drive/6-Speed Trap Door Bearing Remover/Installer fits '07-'20 Big Twin & '06 Dyna Models Features: Accurately installs and removes lubed ball bearing into transmissio$384.70 -
Out of stock
Jims - 739 5 & 6-Speed Cruise Drive Countershaft Bearing Remover/Installer Tool
Jims
$341.65Jims - 739 5 & 6-Speed Cruise Drive Countershaft Bearing Remover/Installer Tool Features: Install or remove the closed-end countershaft bearing on all 5-speed or 6-speed transmissions without...$341.65 -
Out of stock
Jims - 5816 Cruise Drive Countershaft 1st Scissor Gear Alignment Tool fits '17-'20 M-Eight Models
Jims
MSRP: $68.95$57.35Jims - Cruise Drive Countershaft 1st Scissor Gear Alignment Tool fits '17-'20 M-Eight Models Features: Essential for installing countershaft 1st scissor gear in cruise drive transmissions EMSRP: $68.95$57.35 -
Out of stock
Jims - 900 6-Speed Main Drive Gear and Bearing Remover/Installer fits '06-'17 Touring, '06 Dyna & '07-'17 Softail Models
Jims
$511.80Jims - 900 6-Speed Main Drive Gear and Bearing Remover/Installer fits '06-'17 Touring, '06 Dyna & '07-'17 Softail Models Features: Complete kit for servicing the main drive gear or the main...$511.80 -
Out of stock
Jims - 786 6-Speed Seal Installation Tool fits all '06-'20 6-Speed H-D Model w/ Cruise Drive
Jims
$234.85Jims - 786 6-Speed Seal Installation Tool fits all '06-'20 6-Speed H-D Model w/ Cruise Drive Features: Harley-Davidson’s® new 6-speed transmission is a very stout piece of engineering,...$234.85 -
Out of stock
Jims - 5810 Left Main Seal Installer Tool fits '17-'21 M-Eight Models
Jims
MSRP: $121.95$121.60Jims - 5810 Left Main Seal Installer Tool fits '17-'21 M-Eight Models Features: For use on Milwaukee Eight series enginesMSRP: $121.95$121.60 -
Out of stock
Jims - 1745 Bearing Simulator fits '70-'02 Big Twin Models
Jims
$107.95Jims - 1745 Bearing Simulator fits '70-'02 Big Twin Models Features: Designed to allow quick and easy removal and replacement of flywheel assembly in the left-side crankcase when checking...$107.95 -
Out of stock
Jims - 2189 Transmission Shaft Installer fits '83-'06 Big Twin Models
Jims
$126.95Jims - 2189 Transmission Shaft Installer fits '83-'06 Big Twin Models Features: Installs transmission shaft without the use of a hydraulic or arbor press$126.95 -
Out of stock
Jims - 39361-69 Sprocket Shaft Seal Installation Tool fits '69-'10 Big Twin & Twin Cam Models
Jims
MSRP: $161.95$161.75Jims - 39361-69 Sprocket Shaft Seal Installation Tool fits '69-'10 Big Twin & Twin Cam Models Features: Designed to press oil seal over sprocket shaft into caseMSRP: $161.95$161.75 -
Out of stock
Jims - 34902-84 Mainshaft Bearing Race Tool fits 'L84-'20 Big Twin Models
Jims
$382.20Jims - 34902-84 Mainshaft Bearing Race Tool fits 'L84-'20 Big Twin Models Features: Used to remove and install the inner bearing race on the transmission mainshaft Made in the U.S.A.$382.20 -
Out of stock
Jims - 34734-80 Main Drive Gear Bearing/Seal Installer Tool fits '80-'90 5-Speed Big Twin Models
Jims
MSRP: $97.95$97.65Jims - 34734-80 Main Drive Gear Bearing/Seal Installer Tool fits '80-'90 5-Speed Big Twin Models Features: Holds bearings and seal square to its bore, eliminating any marring Install both bMSRP: $97.95$97.65 -
Out of stock
Jims - 35820-86 Transmission Gear Spacing Tool fits '86-'90 Sportster, '87-'90 Buell Models
Jims
$77.95Jims - 35820-86 Transmission Gear Spacing Tool fits '86-'90 Sportster, '87-'90 Buell Models Features: Used to align main and countershafts when checking proper gear spacing Made in the U.S.$77.95 -
Out of stock
Jims - 33428-78 Main Drive Gear Bearing Tool fits '79-'84 4-Speed Big Twin Models
Jims
$133.95Jims - 33428-78 Main Drive Gear Bearing Tool fits '79-'84 4-Speed Big Twin Models Features: Use to install the main bearing (Harley-Davidson® #8905) to the correct depth Made in the U.S$133.95 -
Out of stock
Jims - 96385-78A 4-Speed Shift Fork Gauge fits '79-'85 Big Twin Models
Jims
$207.05Jims - 96385-78A 4-Speed Shift Fork Gauge fits '79-'85 Big Twin Models Features: This tool checks alignment of Big Twin transmission shift forks Made in the U.S.A.$207.05 -
Out of stock
S&S Cycle - Idler Gearshaft fits Big Twin Models (OEM #25791-36)
S&S Cycle
$29.95S&S Cycle - Idler Gearshaft fits Big Twin Models (OEM #25791-36) Features: Includes circuit breaker drive gear, idler gear assembly and circuit breaker shaft gear with shims Circuit breaker gear...$29.95 -
Out of stock
Colony - 9671-20 Parkerized Transmission Kicker Cover Nut Kit fits '36-'84 Big Twin Models (OEM #7835, 7752)
Colony Machine
$10.95Colony - 9671-20 Parkerized Transmission Kicker Cover Nut Kit fits '36-'84 Big Twin Models (OEM #7835, 7752) Features: Kits include (9) nuts, (9) flat washers, (1) nut and (1) washer Made in the...$10.95 -
Out of stock
V-Twin - Transmission Bottom Stud Kit fits '29-'52 W, '29-'71 G Models
V-Twin Mfg
$37.09V-Twin - Transmission Bottom Stud Kit fits '29-'52 W, '29-'71 G Models Transmission bottom stud kit for Side Valve models. Can also be used on Big Twin 4-speed models for rigidity when a primary belt...$37.09 -
Out of stock
Colony - Transmission Top Cover Screw Kit fits '56-'64 Big Twin Models - Chrome
Colony Machine
$30.95Colony - Transmission Top Cover Screw Kit fits '56-'64 Big Twin Models - Chrome Features: OEM duplicate used to mount the transmission top cover Made in the U.S.A.$30.95 -
Out of stock
Colony - Transmission Top Cover Screw Kit fits '48-'55 Big Twin Models (OEM #2333, 2349) - Cadmium
Colony Machine
$31.95Colony - Transmission Top Cover Screw Kit fits '48-'55 Big Twin Models (OEM #2333, 2349) - Cadmium Features: OEM duplicate used to mount the transmission top cover Made in the U.S.A.$31.95 -
Out of stock
Colony - 8112-20 Chrome Transmission Kicker Cover Nut Kit fits '36-'84 Big Twin Models (OEM #7055, 7752, 7835)
Colony Machine
$14.95Colony - 8112-20 Chrome Transmission Kicker Cover Nut Kit fits '36-'84 Big Twin Models (OEM #7055, 7752, 7835) Features: Kits include (9) nuts, (9) flat washers, (1) nut and (1) washer Made in...$14.95 -
Out of stock
Colony - Transmission Top Cover Bolt Kit fits 'L79-'86 Big Twin Models (OEM #2872W, 2887W, 3802W)
Colony Machine
$8.95Colony - Transmission Top Cover Bolt Kit fits 'L79-'86 Big Twin Models (OEM #2872W, 2887W, 3802W) Features: Includes four 1/4"-20 x 2" bolts, two 1/4"-20 x 7/8" bolts, one 1/4"-20 x 11/2" bolt,...$8.95 -
Out of stock
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 shoe, a...$3,195.00 -
Out of stock
Baker - DD6-Speed Gear Set fits '98-'00 Touring & FXR Models
Baker Drivetrain
$3,395.00Baker - 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 shoe, a...$3,395.00 -
Out of stock
Slyfox - Gloss Carbon Fiber Transmission Cover fits '17-'20 Touring Models
Slyfox
$209.95Slyfox - Gloss Carbon Fiber Transmission Cover fits '17-'20 Touring Models Carbon fiber construction Direct bolt-on replacement Fitment$209.95 -
Out of stock
EMD - Ribbed Transmission Cover fits Big Twin '07-Up & '06 & Up Dyna - Raw
EMD
$219.99Designed to match the various other ribbed EMD primary and engine to covers to complete the chopper look for your ride! Manufactured in die cast aluminum, CNC milled gasket surface OEM...$219.99
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.