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 - BD-10603-A - Function-Formed™ Transmission Side Cover - Mechanical - Big Twin - Wrinkle Black
Baker Drivetrain
$425.00Baker Drivetrain - BD-10603-A - Function-Formed™ Transmission Side Cover - Mechanical - Big Twin - Wrinkle BlackFeaturesFunction-Formed™ style milled from 6061-T6 billet aluminumMinimalistic design...$425.00 -
Baker Drivetrain - 12067B - 5-Speed Main Drive Gear Seal
Baker Drivetrain
$19.99Baker Drivetrain - 12067B - 5-Speed Main Drive Gear SealFeaturesReplacement seal for 5-Speed Big TwinsSpecsUnits<$19.99 -
James Gasket - 5th Gear Clutch Side Mainshaft Seal fits '80-'E84 Big Twin 5-Speed Models (OEM #12044, 12044A)
James Gaskets
$14.95James Gasket - 5th Gear Clutch Side Mainshaft Seal fits '80-'E84 Big Twin 5-Speed Models (OEM #12044, 12044A) Features: Made in the U.S.A. Fitment$14.95 -
James Gasket - Transmission to Engine Seal fits '07-'16 FLHT, '06-'17 Dyna Models (OEM #35607-06)
James Gaskets
$15.95James Gasket - Transmission to Engine Seal fits '07-'16 FLHT, '06-'17 Dyna Models (OEM #35607-06) Features: Made in the U.S.A. Fitment$15.95 -
James Gasket - Transmission Gasket Seal Kit fits '91-'98 Dyna Glide Models (OEM #33031-91)
James Gaskets
$51.95James Gasket - Transmission Gasket Seal Kit fits '91-'98 Dyna Glide Models (OEM #33031-91) Features: Made in the U.S.A. Fitment$51.95 -
James Gasket - Transmission Seal Kit fits '84-'93 Big Twin Models
James Gaskets
$26.95James Gasket - Transmission Seal Kit fits '84-'93 Big Twin Models Features: Designed for most 4- or 5-speed Big Twin transmissions Mad$26.95 -
James Gaskets - JGI-37741-67-K - 4 Speed Transmission Mainshaft Seal Kit - Fits '80-'81 Big Twin Models
James Gaskets
$24.95James Gaskets - JGI-37741-67-K - 4 Speed Transmission Mainshaft Seal Kit - Fits '80-'81 Big Twin Models Fits: '80-'81 Big Twin Models. Full year/model list is on the Fitment tab. 4 Speed Transmission...$24.95 -
Jims - 34902-84-3 Replacement Puller Plate fits 'L84-'20 Big Twin Models
Jims
$109.70Jims - 34902-84-3 Replacement Puller Plate fits 'L84-'20 Big Twin Models Features: Replacement puller plate for Jim's mainshaft bearing race tool Made in t$109.70 -
Colony - 9620-13 Transmission Top Cover Screw Kit Parkerized fits '37-'48 UL, '41-'55 FL, '36-'40 EL Models (OEM #34720-36)
Colony Machine
MSRP: $23.67$15.95Colony - 9620-13 Transmission Top Cover Screw Kit Parkerized fits '37-'48 UL, '41-'55 FL, '36-'40 EL Models (OEM #34720-36) Parkerized oval type transmission top cover screw kit contains stock...MSRP: $23.67$15.95 -
Colony - Transmission Mainshaft Nut fits '92-'15 Evolution Big Twin Models (OEM #35211-91A/B)
Colony Machine
$22.95Colony - Transmission Mainshaft Nut fits '92-'99 Evolution Big Twin Models (OEM #35211-91A/B) Features: 1-1/2" left-hand threads Made in the U.S.A.$22.95 -
Colony - Hex Transmission Plug fits '40-'84 Big Twin - Chrome
Colony Machine
$15.95Colony - Hex Transmission Plug fits '40-'84 Big Twin - Chrome Features: Chrome-plated, cad or brushed aluminum fill plugs For 4-speed transmission models Made in the U.S.A. Fitment$15.95 -
Trask - CheckM8™ Vented Trans Top Cover fits '17-'23 Touring, '18-'24 M8 Softail Models (Except '23 FLHXSE/FLTRXSE, '22 FXLRST)
Trask Performance
$349.95Trask - CheckM8™ Vented Trans Top Cover fits '17-'23 Touring, '18-'24 M8 Softail Models (Except '23 FLHXSE/FLTRXSE, '22 FXLRST) Trask's CheckM8™ Vented Trans Top Cover solves the common problem of...$349.95 -
Drag Specialties Transmission Mounting Plate for Softail 1986-1999 - Repl. OEM #47698-86B
Drag Specialties
$39.17Drag Specialties Transmission Mounting Plate for Softail 1986-1999 Replaces Harley Davidson part number 47698-86B Fitment YearMakeModel$39.17 -
Colony Machine - Transmission Side Cover Bolt Kit fits '07-'16 Touring Models
Colony Machine
$28.95Colony Machine - Transmission Side Cover Bolt Kit fits '07-'16 Touring Models The Colony Machine Transmission Side Cover Kit is a polished Allen Bolt Kit that is 100% manufactured in the U.S.A...$28.95 -
Accutronix - Knurled Transmission Dipsticks fits '07-'17 Softail & '06-'17 Dyna Models
Accutronix
$63.95Accutronix - Knurled Transmission Dipsticks fits '07-'17 Softail & '06-'17 Dyna Models These transmission dipsticks by Accutronix add a little subtle detail to your Dyna or Softail Harley Davidson...$63.95 -
Colony Machine - Transmission Side Cover Bolt Kit fits '06-'17 Dyna Models
Colony Machine
$26.95Colony Machine - Transmission Side Cover Bolt Kit fits '06-'17 Dyna Models The Colony Machine Transmission Side Cover Kit is a polished Allen Bolt Kit that is 100% manufactured in the U.S.A. Colony...$26.95 -
Drag Specialties - Transmission Pulley 29 Tooth fits '91-'03 Sportster XL 29T Models (OEM #40505-95)
Drag Specialties
$115.51Drag Specialties - Transmission Pulley 29 Tooth fits '91-'03 Sportster XL 29T Models (OEM #40505-95) Features: Heat-treated steel construction Direct OEM replacemen$115.51 -
Feuling - 12-Point External Primary/Transmission Engine Fastener Kit fits '99-'05 Dyna Models
$299.95Feuling - 12-Point External Primary/Transmission Engine Fastener Kit fits '99-'05 Dyna Models The 12-Point External Primary/Transmission Engine Fastener Kit allows you to secure your engine with...$299.95 -
Feuling - Primary and Transmission ARP 12 Point Bolt Kit - Choose Fitment - Fits 2000-2006 Softail
$269.95 - $279.95The Feuling Primary and Transmission 12 Point Bolt Kit: Kits include 12-point stainless bolts and applicable washers for the primary cover, derby cover, inspection cover, transmission top cover,...$269.95 - $279.95 -
Feuling - 12-Point External Primary/Transmission Engine Fastener Kit fits '17-'22 Touring Models
Feuling
$279.95Feuling - 12-Point External Primary/Transmission Engine Fastener Kit fits '17-'22 Touring Models This kit comes with a primary cover, a derby cover, top transmission cover right transmission bearing...$279.95 -
Drag Specialties - Transmission Side Covers - Fits '06-'17 FXD, FXDWG; '07-'17 FXST; '07-'13 FLHT Models
Drag Specialties
$125.95 - $133.56Drag Specialties Transmission Side Covers Fits '06-'17 FXD, FXDWG; '07-'17 FXST; '07-'13 FLHT Models These transmission side cover by Drag Specialties are made from die-cast zinc and will mount with...$125.95 - $133.56 -
James Gaskets - Transmission Gasket-Seal Kit - fits '99-'06 Twin Cams (Repl. OEM #33031-99)
James Gaskets
$52.95James Gaskets - Transmission Gasket-Seal Kit - fits '99-'06 Twin Cams (Repl. OEM #33031-99) Features Available with gaskets and seals Made in the U.S.A. Fitment$52.95 -
V-Twin - 12-1199 - Transmission Top Dowel Pin
Eastern Motorcycle Parts
$12.23V-Twin - 12-1199 - Transmission Top Dowel PinDescriptionReplaces your worn out dowel pin. Fits:FXD 1991-2005FLST 1986-2006FXST 1984-2006FLT 1979-2006FXR 1982-1994Additional Information$12.23 -
Baker Drivetrain - 6304 - 5-Speed Transmission Door Bearing
Baker Drivetrain
$19.99Baker Drivetrain - 6304 - 5-Speed Transmission Door BearingFeaturesReplacement bearing for 5-Speed Big TwinsSpecs$19.99 -
Colony - 9654-4 Transmission Case Bottom Stud Kit fits '71-'84 FX, '48 UL, '48-'84 FL Models (OEM #34723-47)
Colony Machine
MSRP: $25.75$20.95Colony - 9654-4 Transmission Case Bottom Stud Kit fits '71-'84 FX, '48 UL, '48-'84 FL Models (OEM #34723-47) Studs are heat treated as original for 4-speeds. Measures 7/16-14 x...MSRP: $25.75$20.95 -
Feuling - 12-Point Primary/Transmission Engine Fastener Kit fits '00-'06 Touring Models
$279.95Feuling - 12-Point Primary/Transmission Engine Fastener Kit fits '00-'06 Touring Models The 12-Point Primary/Transmission Engine Fastener Kit allows you to secure your engine with complete...$279.95 -
V-Twin - 17-8502 - 12.470 inch 4-Speed Transmission Mainshaft
Andrews
$281.11V-Twin - 17-8502 - 12.470 inch 4-Speed Transmission MainshaftDescriptionAndrews 4-speed transmission mainshaft is 12.470" long type. Fits:FL 1970-1984FX 1971-1984Additional Information$281.11 -
V-Twin - 17-0599 - Sifton Main Drive Gear
Motorshop
$103.55V-Twin - 17-0599 - Sifton Main Drive GearDescriptionSifton main drive gear has an outer diameter of 1.6235. Includes bushing and seal installed. Gear fits the Torrington needle bearing. This is for...$103.55 -
V-Twin - 17-0321 - Replica Bicycle Kick Starter Pedal Assembly Parkerized
Motorshop
$62.04V-Twin - 17-0321 - Replica Bicycle Kick Starter Pedal Assembly ParkerizedDescriptionReplica bicycle style kick starter pedal includes parkerized shaft and tube with parkerized side plates and black...$62.04 -
V-Twin - 17-0118 - Shift Finger Roller Collar
Motorshop
MSRP: $21.64$20.23V-Twin - 17-0118 - Shift Finger Roller CollarDescriptionTransmission shift finger roller collar features oiled bearing grade steel.Sold as a pair. Fits:FX 1979-1984K 1952-1956XL 1957-1990FL...MSRP: $21.64$20.23 -
V-Twin - 17-0051 - Transmission Shifter Pawl Support Shim
Eastern Motorcycle Parts
$28.83V-Twin - 17-0051 - Transmission Shifter Pawl Support ShimDescriptionTransmission shifter pawl support shim. Fits:XL 1966-1984Additional Information$28.83 -
V-Twin - 12-2104 - Transmission Mount Case Stock Studs
Motorshop
$30.20V-Twin - 12-2104 - Transmission Mount Case Stock Studs Description Replica transmission mount case stock studs with a 3/8". Studs are heat treated as originals. Available in set of 4. Fits: FX...$30.20 -
V-Twin - 12-0361 - Transmission Mainshaft Left Side Bearing
WD Bearing
MSRP: $23.16$21.65V-Twin - 12-0361 - Transmission Mainshaft Left Side BearingDescriptionMainshaft Bearing, left side Fits:FXD 1991-2000FXST 1984-2000XL 1991-UPFXR 1984-2000FLST 1986-2000FLT 1984-2000Additional...MSRP: $23.16$21.65 -
Drag Specialties - 11200217 - Mainshaft Bearing Kit - Twin Cam
Drag Specialties
$32.01Drag Specialties - 11200217 - Mainshaft Bearing Kit - Twin CamFeaturesKit includes sealed ball bearing, seal and snap ringDesigned for use on straight splined shafts onlyDesigned for stock style...$32.01 -
Eastern Motorcycle Parts - A-8980 - Bearing - 8980 - Fits L1984-1985 FLHT/FXR; repl. OEM #8980
Eastern Motorcycle Parts
$26.95Eastern Motorcycle Parts - A-8980 - Bearing - 8980FeaturesHigh-quality replacement componentFits OEM and most aftermarket inner primariesReplacement Part for OEM Number(s): 8980Specs$26.95 -
Baker Drivetrain - 170-5-A - Shift Drum Kit - 5-Speed Big Twin
Baker Drivetrain
$374.00Baker Drivetrain - 170-5-A - Shift Drum Kit - 5-Speed Big TwinFeaturesFor 5-Speed transmissionsShifter drum grooves have been designed for smoother shifting and unneeded material has been removed...$374.00 -
James Gasket - Main Drive Gear Seal fits '07-'17 Twin Cam, '06 Dyna Models (OEM #12074)
James Gaskets
$10.95James Gasket - Main Drive Gear Seal fits '07-'17 Twin Cam, '06 Dyna Models (OEM #12074) Features: Top quality main drive gear shaft seals Fitment$10.95 -
Colony - 9885-2 Chrome Transmission Filler Plug and Dipstick fits '91-'05 FXD, '87-'06 FLST/FLT/FXST Models (OEM #37075-87)
Colony Machine
$26.48Colony - 9885-2 Chrome Transmission Filler Plug and Dipstick fits '91-'05 FXD, '87-'06 FLST/FLT/FXST Models (OEM #37075-87) Chrome stock transmission filler plug and dipstick Fitment: FXD...$26.48 -
Drag Specialties - Transmission Pulley 32 Tooth fits '07-'16 FXD/FXST/FLST/FLT Models ( OEM #40659-06)
Drag Specialties
$247.17Drag Specialties - Transmission Pulley 32 Tooth fits '07-'16 FXD/FXST/FLST/FLT Models ( OEM #40659-06) Features: Heat-treated steel construction Direct OEM replacement$247.17 -
Drag Specialties - Transmission Top Cover fits '17-'25 M8 Models (Repl. OEM #34800031) - Chrome
Drag Specialties
$118.67Drag Specialties - Transmission Top Cover fits '17-'25 M8 Models (Repl. OEM #34800031) - Chrome Includes aluminum-coated black foam gasket (Repl. OEM #25700453) and vent hose...$118.67
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.