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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V-Twin - 12-0709 - Kick Starter Crank Shim
Eastern Motorcycle Parts
MSRP: $21.92$20.49V-Twin - 12-0709 - Kick Starter Crank ShimDescriptionKick starter shaft crank shim is used to set proper end play adjustment on XL models. Fits:K 1952-1956XL 1957-1979Additional InformationMSRP: $21.92$20.49 -
V-Twin - 12-0703 - Transmission .015 Shifter Fork Shim
Eastern Motorcycle Parts
MSRP: $15.44$15.28V-Twin - 12-0703 - Transmission .015 Shifter Fork ShimDescriptionThis .015 shifter fork shim is for 1941-1985 Big Twin 4-Speed models. Fits:UL 1937-1948G 1941-1973FX 1971-1984EL 1936-1940FL...MSRP: $15.44$15.28 -
V-Twin - 12-0702 - Transmission .008 Shifter Fork Shim
Motorshop
MSRP: $18.90$18.71V-Twin - 12-0702 - Transmission .008 Shifter Fork ShimDescriptionThis .008 Shifter Fork Shim is for 1941-1985 Big Twin 4-Speed models.Sold as a pack of 10. Fits:UL 1937-1948FX 1971-1984EL 1936-1940FL...MSRP: $18.90$18.71 -
V-Twin - 12-0627 - Transmission Shifter Shaft Bushing
Motorshop
$27.92V-Twin - 12-0627 - Transmission Shifter Shaft BushingDescriptionTransmission shifter shaft bushing for outer primary cover. Fits:XL 2006-UPAdditional Information$27.92 -
V-Twin - 12-0557 - Nut for Transmission Mainshaft or Countershaft
Eastern Motorcycle Parts
$17.70V-Twin - 12-0557 - Nut for Transmission Mainshaft or CountershaftDescriptionTransmission 5 speed mainshaft or countershaft nut Fits:FXD 1991-2005FLST 1986-2006FXST 1984-2006FLT 1979-2006FXR...$17.70 -
V-Twin - 12-0530 - Transmission Drive Sprocket Nut
Motorshop
$24.83V-Twin - 12-0530 - Transmission Drive Sprocket NutDescriptionTransmission drive sprocket nut with lock tab. Fits:XL 1971-1984 1971-early 1984Additional Information$24.83 -
V-Twin - 12-0529 - Transmission Drive Sprocket Nut
Eastern Motorcycle Parts
$23.06V-Twin - 12-0529 - Transmission Drive Sprocket NutDescriptionTransmission drive sprocket nut with seal included. Fits:K 1953-1956XL 1957-1970Additional Information$23.06 -
V-Twin - 12-0528 - Kick Starter Shaft Nut
Motorshop
$35.90V-Twin - 12-0528 - Kick Starter Shaft NutDescriptionNut for the kick starter shaft. Fits:XLCH 1957-1979Additional Information OEM$35.90 -
V-Twin - 12-0527 - Kick Starter Shaft Nut
Motorshop
$24.83V-Twin - 12-0527 - Kick Starter Shaft NutDescriptionKick shaft nut for 74" and 80", 1936-1984, 3 and 4 speed Big Twin models*NOTE: The nut is 1/2" x 20 thread, 7/32" thick and 7/8" hex. Fits:UL...$24.83 -
V-Twin - 12-0526 - Transmission Shifter Fork Nut
Motorshop
$30.98V-Twin - 12-0526 - Transmission Shifter Fork NutDescriptionTransmission shifter fork nut for Big Twin Models Fits:UL 1937-1948FX 1971-1984EL 1936-1940FL 1941-1984Additional Information$30.98 -
V-Twin - 12-0500 - Kick Starter Clutch Nut
Motorshop
$27.71V-Twin - 12-0500 - Kick Starter Clutch NutDescriptionKick starter mainshaft nut will fit 74" and 80" models with 3 and 4 speed transmissions.*NOTE: The nut is 5/8" x 18 thread, 1/4" thick and 9/16"...$27.71 -
V-Twin - 12-0481 - Main Drive Gear Sprocket Nut and Lock Tab Kit
Motorshop
$27.71V-Twin - 12-0481 - Main Drive Gear Sprocket Nut and Lock Tab KitDescriptionMain drive gear sprocket nut and lock tab kit is for use on 4 speed models. Fits:FL 1941-1985EL 1936-1952Additional...$27.71 -
V-Twin - 12-0461 - Replica Transmission Needle Bearing Closed Type
Motorshop
MSRP: $15.86$15.70V-Twin - 12-0461 - Replica Transmission Needle Bearing Closed TypeDescriptionReplica needle bearing features full compliment roller design. For use with countershaft. Fits:XL 1957-1990K...MSRP: $15.86$15.70 -
V-Twin - 12-0435 - Transmission Needle Bearing Closed Type
V-Twin Mfg
$5.90V-Twin - 12-0435 - Transmission Needle Bearing Closed TypeDescriptionTransmission needle bearing is the closed type. Fits:FXD 2006-2017FLST 2007-UPFXST 2007-UPFLT 2007-UPAdditional Information$5.90 -
V-Twin - 12-0426 - Transmission Mainshaft Ball Bearing
WD Bearing
$30.72V-Twin - 12-0426 - Transmission Mainshaft Ball BearingDescriptionTransmission mainshaft bearing 8996A. Fits:FXST 2001-2006FXD 2001-2005FLT 2001-2005FLST 2001-2006Additional Information$30.72 -
V-Twin - 12-0399 - Transmission Main Drive Bearing
Motorshop
$54.91V-Twin - 12-0399 - Transmission Main Drive BearingDescriptionMain drive 4 speed gear bearing for classic models. Full compliment with precision ground 1.9989" outer diameter for exact replacement...$54.91 -
V-Twin - 12-0398 - Transmission Main Drive Bearing
Motorshop
MSRP: $21.86$20.44V-Twin - 12-0398 - Transmission Main Drive BearingDescriptionTransmission main drive bearing. Fits:FX 1977-1984FL 1977-1984Additional InformationMSRP: $21.86$20.44 -
V-Twin - 12-0396 - Open Type Transmission Needle Bearing
Motorshop
MSRP: $13.18$13.05V-Twin - 12-0396 - Open Type Transmission Needle BearingDescriptionCountershaft needle bearing is open type. It features full compliment roller design. Fits:K 1952-1956FX 1977-1984XL 1957-1990FL...MSRP: $13.18$13.05 -
V-Twin - 12-0388 - Transmission Cover Bearing
WD Bearing
$24.24V-Twin - 12-0388 - Transmission Cover BearingDescriptionTransmission cover bearing. Fits:FXD 2000-2016FLST 2000-UPFXST 2000-UPFLT 2000-UPAdditional Information$24.24 -
V-Twin - 12-0378 - Transmission Mainshaft Left Side Bearing
Eastern Motorcycle Parts
$24.21V-Twin - 12-0378 - Transmission Mainshaft Left Side BearingDescriptionTransmission mainshaft left side ball bearing for 1989-up XL models Fits:XL 1989-UPAdditional Information$24.21 -
V-Twin - 12-0368 - Transmission Countershaft Low Gear Bearing
Torrington
MSRP: $9.86$9.76V-Twin - 12-0368 - Transmission Countershaft Low Gear BearingDescriptionTransmission countershaft lower bearing for 1984-1990 XL models Fits:XL 1984-1990Additional InformationMSRP: $9.86$9.76 -
V-Twin - 12-0366 - Transmission Four Piece Bearing Set
Sonnax
$62.26V-Twin - 12-0366 - Transmission Four Piece Bearing SetDescriptionTransmission bearing, 5 speed. Fits:FXD 1991-2005FLST 1986-2006FLT 1979-2006FXR 1982-1994XL 1991-UPFXST 1998-2006Additional Information$62.26 -
V-Twin - 12-0359 - Transmission Mainshaft Right Bearing
Sonnax
$37.28V-Twin - 12-0359 - Transmission Mainshaft Right BearingDescriptionMainshaft right side bearing Fits:XL 1984-1990Additional Information$37.28 -
V-Twin - 12-0349 - Transmission Main Drive Bearing
Motorshop
$44.79V-Twin - 12-0349 - Transmission Main Drive BearingDescriptionMainshaft 4 speed needle bearing has an outer diameter of 1.998". This bearing is precision ground to fit a later race .Bearing has a...$44.79 -
V-Twin - 12-0343 - Transmission Thrust Bearing
Motorshop
$46.20V-Twin - 12-0343 - Transmission Thrust BearingDescriptionTransmission thrust bearing Fits:WL 1941-1973G 1941-1973Additional Information$46.20 -
V-Twin - 12-0339 - Transmission Countershaft Needle Bearing
Sonnax
$49.79V-Twin - 12-0339 - Transmission Countershaft Needle BearingDescriptionCountershaft needle bearing, closed end type, for 5-speed transmissions. Fits:FXD 1991-2005FLST 1986-2006FLT 1979-2006FXR...$49.79 -
V-Twin - 12-0337 - Transmission Mainshaft Housing Bearing
Peer Bearing
$35.40V-Twin - 12-0337 - Transmission Mainshaft Housing BearingDescriptionTransmission mainshaft housing bearing, 5 speed is a high quality hardened steel for improved relaibility. Fits:FLT 1979-1983FXR...$35.40 -
V-Twin - 12-0336 - Transmission Main Drive Bearing
Eastern Motorcycle Parts
$22.32V-Twin - 12-0336 - Transmission Main Drive BearingDescriptionNeedle Bearing, 5th gear, Fits:FXR 1982-1990FLST 1986-1990FXST 1986-1990FLT 1979-1990Additional Information$22.32 -
V-Twin - 12-0327 - Open Type Transmission Needle Bearing
Sonnax
$27.98V-Twin - 12-0327 - Open Type Transmission Needle BearingDescriptionThis countershaft needle bearing is open end type. It features a full compliment roller design. Fits:FL 1976-1984K 1952-1956FX...$27.98 -
V-Twin - 12-0326 - Transmission Needle Bearing Closed Type
Sonnax
$31.77V-Twin - 12-0326 - Transmission Needle Bearing Closed TypeDescriptionBearing features full compliment roller design. Fits:XL 1957-1990K 1954-1956Additional Information$31.77 -
V-Twin - 12-0308 - Transmission Mainshaft Ball Bearing
Motorshop
$22.96V-Twin - 12-0308 - Transmission Mainshaft Ball BearingDescriptionMainshaft ball bearing for 4 speed transmission. For use on XL transmissions and Big Twin clutch drum. Fits:FLST 1986-1990FLT...$22.96 -
V-Twin - 12-0307 - Transmission Main Ball Bearing
WD Bearing
$27.98V-Twin - 12-0307 - Transmission Main Ball BearingDescriptionMainshaft ball bearing for 3 and 4 speed models. Bearing is manufactured of high quality hardened steel for improved reliability.The inner...$27.98 -
V-Twin - 12-0300 - Koyo Transmission Main Drive Bearing
Sonnax
$53.35V-Twin - 12-0300 - Koyo Transmission Main Drive BearingDescriptionKoyo transmission main drive bearing for Big Twin models.Bearing measures 2.005" outer diameter x .61" wide x 1.638" inner diameter...$53.35 -
V-Twin - 12-0299 - Right Transmission Shifter Cam Bearing
Eastern Motorcycle Parts
MSRP: $14.32$14.17V-Twin - 12-0299 - Right Transmission Shifter Cam BearingDescriptionTransmission shifter cam bearing for the right side. Fits:FLH 2007-2016FLT 2007-2016FXD 1991-2005FXD 2006-2017FLST 1986-2006FLHXXX...MSRP: $14.32$14.17 -
V-Twin - 12-0298 - Left Transmission Shifter Cam Bearing
Eastern Motorcycle Parts
MSRP: $16.32$16.15V-Twin - 12-0298 - Left Transmission Shifter Cam BearingDescriptionTransmission shifter cam for left side on 5-speeds. Fits:FXD 1991-2005FLST 1986-2006FLT 1979-2006FXR 1982-1994FXST...MSRP: $16.32$16.15 -
V-Twin - 12-0221 - Transmission Mainshaft Seal Keys
Eastern Motorcycle Parts
$19.68V-Twin - 12-0221 - Transmission Mainshaft Seal KeysDescriptionTransmission mainshaft seal keys are for use on 4 speed models.Sold as a pack of 10. Fits:FX 1971-1977EL 1937-1952FL 1941-1977Additional...$19.68 -
V-Twin - 12-0211 - Transmission Sprocket Key
Eastern Motorcycle Parts
$40.88V-Twin - 12-0211 - Transmission Sprocket KeyDescriptionTransmission sprocket key Fits:WL 1929-1952G 1929-1973Additional Information$40.88 -
V-Twin - 12-0207 - Transmission Mainshaft Seal Key
Motorshop
$26.46V-Twin - 12-0207 - Transmission Mainshaft Seal KeyDescriptionTransmission mainshaft seal key Fits:FX 1971-1977FL 1941-1977Additional Information$26.46 -
V-Twin - 12-0206 - Kick Starter Clutch Gear Key
Motorshop
MSRP: $23.14$21.63V-Twin - 12-0206 - Kick Starter Clutch Gear KeyDescription4-Speed kick starter clutch gear key.Sold as a pack of 10. Fits:UL 1937-1948FX 1971-1984EL 1936-1940FL 1941-1984Additional InformationMSRP: $23.14$21.63 -
V-Twin - 12-0156 - 1/2 inch Transmission Ball Bearing - Fits 1941-1976 Harley-Davidson G
V-Twin Mfg
$37.55Transmission ball bearing is 1/2" and is used for shifter cam plunger.Sold as a pack of 50. Fits:G 1941-1976Additional Information OEM No.8872$37.55
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.