Harley Drivetrain
Harley Bike Drivetrain Parts at JJ Motorsports
Upgrade your Harley's drivetrain for smoother power delivery and reliability with components from JJ Motorsports. Our selection includes transmission mounting plates, offset sprockets, mechanical reverse kits, starter spacers, pulley spacers, and primary covers designed for heavy-duty use, easy bolt-in installation, and enhanced performance. Compatible with Big Twins, Softail, Dyna, and more, these parts feature chrome finishes, billet aluminum, and CNC-machined steel for corrosion resistance and custom fitment.
Shop trusted brands like Paughco for primary covers and PBI for sprockets. Explore related categories such as Harley engine parts for rebuilds or Harley suspension for balanced setups.
Top Harley Drivetrain Products
- PAUGHCO Transmission Plate - OE Type 4-Speed 218 – Heavy-duty steel for Big Twins with 4-speed transmissions.
- PBI Offset Transmission Sprocket - 22-Tooth 281-22 – CNC-machined chromoly steel with 0.750" offset for 530 chains.
- MOTOR TRIKE Mechanical Reverse Kit MTTR-0025 – Lightweight aluminum with electronic cut-off for easy parking.
- TERRY COMPONENTS Starter Spacer 779000 – Billet aluminum, 1-1/2" thick for longer starters.
- PINGEL Rear Pulley Spacer 62051 – Billet aluminum for wider tires up to 142mm.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Jims Fat 5 5-Speed Overdrive Super Kit 8273 for 1990-2000 Harley-Davidson FLHR Road King
JIMS
$3,936.95Enhance your riding experience with the JIMS Fat 5™ 5-Speed Overdrive Super Kit 8273. This innovative gear cluster features a unique chrome trap door design that seamlessly fits into your stock transmission case, providing superior performance and...11030010- SKU:
- 11030010
- Availability:
- Ships Same Business Day
- Weight:
- 31.05 LBS
- FIFTH GEAR RATIO:
- 0.886:1
- RIDING STYLE:
- STREET
- STYLE:
- CUSTOM REPLACEMENT
- THIRD GEAR RATIO:
- 1.31:1
- FIRST GEAR RATIO:
- 2.91:1
- PRODUCT NAME:
- TRANSMISSION KIT
- SECOND GEAR RATIO:
- 1.93:1
- TRANSMISSION TYPE:
- 5 SPEED
- MODEL:
- FAT 5
- TYPE:
- GEAR SET
- UNITS:
- KIT
- FOURTH GEAR RATIO:
- 1.00:1
- STYLE:
- OVERDRIVE
$3,936.95 -
JIMS Mega Nut 1993-2006 Harley-Davidson Softail Springer FXSTS 1708
JIMS
$125.95Upgrade your motorcycle's performance with the JIMS Mega Nut, specifically designed for models from 1993 to 2006. This innovative pulley nut features advanced machining for enhanced clamping precision, ensuring a secure fit that optimizes your bike’s...DS194003- SKU:
- DS194003
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- PULLEY
- PRODUCT NAME:
- NUT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$125.95 -
Jims Transmission Sprocket Spacer for Harley-Davidson Softail 1986-1994 33334-85
JIMS
$52.95Enhance the performance and longevity of your motorcycle with the JIMS Transmission Sprocket Spacer 33334-85. Designed for optimal fit and durability, this spacer ensures a smooth operation while protecting your seal life. Proudly made in the U.S.A.,...DS197053- SKU:
- DS197053
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- LENGTH:
- 0.850'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- TRANSMISSION SPROCKET SPACER
- TRANSMISSION TYPE:
- 5 SPEED
$52.95 -
Jims Transmission Door Bearings for Harley-Davidson 1993-1998 Dyna Low Rider FXDL 8998K
JIMS
$43.95The JIMS Bearing 8998K is a high-performance component engineered for durability and precision. Proudly made in the U.S.A., this bearing is designed to enhance the efficiency and reliability of your machinery. Experience superior craftsmanship and...DS197063- SKU:
- DS197063
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 5 SPEED
- UNITS:
- 2 PACK
- PRODUCT NAME:
- BEARING
- TYPE:
- TRAP DOOR
$43.95 -
Jims Transmission Main Bearing Race for Harley-Davidson FLH 1965-1977 35125-37
JIMS
$109.95Enhance the performance and longevity of your motorcycle with the JIMS Mainshaft Bearing Race 35125-37. Designed for precision fit and superior durability, this bearing race is an essential component for smooth operation and reliability. Whether you're a...DS195016- SKU:
- DS195016
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- BEARING RACE
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- MAIN BEARING
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
Jims 5-Speed Transmission Rebuild Kit 1984-1990 1020
JIMS
$450.95Revitalize your motorcycle's transmission with the JIMS 5-Speed Rebuild Kit 1020. This comprehensive kit includes everything you need to restore your 5- or 6-speed transmission to peak performance, ensuring a smooth and reliable ride. Proudly made in the...DS325780- SKU:
- DS325780
- Availability:
- Ships Same Business Day
- Weight:
- 2.44 LBS
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 5 SPEED
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- REBUILD KIT
- UNITS:
- EACH
$450.95 -
Jims 6-Speed Transmission Rebuild Kit for Harley-Davidson Touring Models 1990-2006 1060
JIMS
$381.95Revitalize your 5- or 6-speed transmission with the JIMS Transmission Rebuild Kit 1060. Crafted in the U.S.A., this comprehensive kit includes everything you need for a complete and reliable rebuild, ensuring optimal performance and longevity for your...11040008- SKU:
- 11040008
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TRANSMISSION TYPE:
- 6 SPEED
$381.95 -
EASTERN MOTORCYCLE PARTS Oil Deflectors A-33429-39
EASTERN MOTORCYCLE PARTS
$17.50Made in the U.S.A.11120036- SKU:
- 11120036
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- OIL DEFLECTOR PLATE
$17.50 -
EASTERN MOTORCYCLE PARTS Ratchet Plate Rivets A-8216
EASTERN MOTORCYCLE PARTS
$2.95Made in the U.S.A.11120041- SKU:
- 11120041
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- RIVET
- TYPE:
- KICKSTART RATCHET PLATE
- UNITS:
- 12 PACK
- RIDING STYLE:
- STREET
$2.95 -
EASTERN MOTORCYCLE PARTS Shifter Shaft - 34628-75 A-34628-75
EASTERN MOTORCYCLE PARTS
$37.95Meets or exceeds OEM standards, Includes the ball11060087- SKU:
- 11060087
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- SHIFT LEVER SHAFT
- RIDING STYLE:
- STREET
- STYLE:
- OEM REPLACEMENT
$37.95 -
EASTERN MOTORCYCLE PARTS Sprocket Shaft Nut - 35047-71A A-35047-71A
EASTERN MOTORCYCLE PARTS
$14.95Made in the U.S.A.11060089- SKU:
- 11060089
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- MAINSHAFT SPROCKET NUT
$14.95 -
EASTERN MOTORCYCLE PARTS Clutch Hub Nuts A-37495-91
EASTERN MOTORCYCLE PARTS
$16.95High-quality steel construction, Made in U.S.A.11060091- SKU:
- 11060091
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- NUT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
- TYPE:
- CLUTCH HUB
$16.95 -
EASTERN MOTORCYCLE PARTS Bearing - 8970 A-8970
EASTERN MOTORCYCLE PARTS
$35.95High-quality replacement OEM components11060092- SKU:
- 11060092
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING
- STYLE:
- OEM REPLACEMENT
- TYPE:
- COUNTERSHAFT
- UNITS:
- EACH
$35.95 -
EASTERN MOTORCYCLE PARTS Transmission Mainshaft Bearing 44-0520
EASTERN MOTORCYCLE PARTS
$110.95High-quality bearing for 6-speed transmissions11060232- SKU:
- 11060232
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING
- UNITS:
- EACH
$110.95 -
EASTERN MOTORCYCLE PARTS Drain Plug A-60348-65B
EASTERN MOTORCYCLE PARTS
$12.95Zinc finish, Made in the U.S.A.11050091- SKU:
- 11050091
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- FEATURES:
- MAGNETIC
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DRAIN PLUG
- UNITS:
- EACH
- COLOR/FINISH:
- ZINC
$12.95 -
EASTERN MOTORCYCLE PARTS Shifter Fork Shims - 0.007" A-6750
EASTERN MOTORCYCLE PARTS
$6.70Made in the U.S.A.11060021- SKU:
- 11060021
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- TYPE:
- SHIFTER FORK
- PRODUCT NAME:
- SHIM
- TRANSMISSION TYPE:
- 4 SPEED
- UNITS:
- 10 PACK
$6.70 -
EASTERN MOTORCYCLE PARTS Shifter Fork Shims - 0.015" A-6752
EASTERN MOTORCYCLE PARTS
$6.70Made in the U.S.A.11060022- SKU:
- 11060022
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 4 SPEED
- TYPE:
- SHIFTER FORK
$6.70 -
EASTERN MOTORCYCLE PARTS Shifter Fork Thrust Washers A-6754
EASTERN MOTORCYCLE PARTS
$13.503/32" thick, Made in the U.S.A.11060026- SKU:
- 11060026
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TRANSMISSION TYPE:
- 4 SPEED
- TYPE:
- SHIFTER FORK
- PRODUCT NAME:
- THRUST WASHER
- RIDING STYLE:
- STREET
$13.50 -
EASTERN MOTORCYCLE PARTS Access Door A-35087-99A
EASTERN MOTORCYCLE PARTS
$16.10High-quality OEM replacement components11060029- SKU:
- 11060029
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TRAP DOOR
- PRODUCT NAME:
- RETAINING RING
- STYLE:
- OEM REPLACEMENT
$16.10 -
EASTERN MOTORCYCLE PARTS Mainshaft - Ball Bearing - Clutch Side A-8978
EASTERN MOTORCYCLE PARTS
$35.95Mainshaft component for 5-speed11060034- SKU:
- 11060034
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- BALL BEARING
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STYLE:
- CLUTCH SIDE
- TYPE:
- MAINSHAFT
$35.95
