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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BAKER DRIVETRAIN Kicker Gear Set - Big Twin 4-Speed 140-64-A
BAKER DRIVETRAIN
$399.00Made from 4140 heat-treated steel for maximum wear-resistance, Rounded teeth for smoother, quieter rolling, Reinforced stop-peg prevents breakage into the transmission, Made in the U.S.A.11120018- SKU:
- 11120018
- Availability:
- Ships Same Business Day
- Weight:
- 1.72 LBS
- MATERIAL:
- STEEL
- TYPE:
- KICKER GEAR SET
- UNITS:
- EACH
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
$399.00 -
BAKER DRIVETRAIN Kickstarter Arm 351-64K
BAKER DRIVETRAIN
$249.00304 stainless steel investment cast straight arm; provides positive kicking motion, Available in standard length, Flush mount stainless steel "head" fastener, Complete with all stainless steel hardware needed, Made in the U.S.A., For Baker 4, 5, &...11120024- SKU:
- 11120024
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- KICK ARM ASSEMBLY
- RIDING STYLE:
- STREET
$249.00 -
BAKER DRIVETRAIN Primary Adjuster Shoe DD6-178
BAKER DRIVETRAIN
$49.00Made in the U.S.A.11200220- SKU:
- 11200220
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- MODEL:
- FAT SHOE
- PRODUCT NAME:
- ADJUSTING SHOE
- UNITS:
- EACH
$49.00 -
BAKER DRIVETRAIN High Torque Bearing and Seal 189-56-A
BAKER DRIVETRAIN
$66.00Made in the U.S.A., Replaces the two-piece bearing and seal in the inner primary, A must for large horsepower motors that have the problem of the race moving in or out, Great for belt drive primary conversions11100018- SKU:
- 11100018
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- STYLE:
- PERFORMANCE REPLACEMENT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING KIT
$66.00 -
BARNETT Clutch Spring Conversion Kit - Mechanical Clutch 511-30-10004
BARNETT
$211.96Converts your diaphragm spring clutch system to six coil springs, CNC-machined billet pressure plate, Ideal for stock to high-performance motors, Allows for more precise adjustment and smoother operation, Increases the holding capacity of the clutch,...DS199219- SKU:
- DS199219
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- BILLET ALUMINUM
- STYLE:
- MECHANICAL CLUTCH
- PRODUCT NAME:
- CONVERSION KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- TYPE:
- CLUTCH SPRING
$211.96 -
BARNETT Drive Plate 401-30-063014
BARNETT
$8.37Designed to perform under extreme heat conditions, Allow smooth, precise shifting, Can be run wet or dry, Steel plates are manufactured under strict quality-control standards, Made in the U.S.A.DS223354- SKU:
- DS223354
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- CLUTCH
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- DRIVE PLATE
$8.37 -
BARNETT Clutch Friction Plates 302-30-10011
BARNETT
$146.74Designed to perform under extreme heat conditions, Allow smooth, precise shifting, 100% asbestos free, Carbon fiber plates have high static and dynamic coefficient of friction for smooth positive engagement and release, Aramid plates have higher density...DS223734- SKU:
- DS223734
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- RIDING STYLE:
- STREET
- UNITS:
- SET OF 8
- PRODUCT NAME:
- FRICTION PLATE SET
- TYPE:
- CLUTCH
$146.74 -
BARNETT Scorpion Clutch 608-30-10090
BARNETT
$685.94Greatly increases clutch capacity, Provides smoother shifting, more progressive engagement, Multiple spring pressure options, Includes steel hub, billet pressure plate, clutch plates, and coil springs, Designed to fit the stock type basket, Ideal for...DS223721- SKU:
- DS223721
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- SCORPION
- PRODUCT NAME:
- CLUTCH ASSEMBLY
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$685.94 -
BARNETT Scorpion Clutch 608-30-10036
BARNETT
$685.94Greatly increases clutch capacity, Provides smoother shifting, more progressive engagement, Multiple spring pressure options, Includes steel hub, billet pressure plate, clutch plates, and coil springs, Designed to fit the stock type basket, Ideal for...DS223723- SKU:
- DS223723
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- UNITS:
- KIT
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- SCORPION
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- CLUTCH ASSEMBLY
- RIDING STYLE:
- STREET
$685.94 -
BARNETT Extra Plate Kit 304-30-10005
BARNETT
$187.47Kit includes six bonded Series K aramid friction plates, one steel plate and a set of heavy-duty clutch springs, Kit adds approximately 20% more surface area, Can be run wet or dry, Made in the U.S.A.DS223727- SKU:
- DS223727
- Availability:
- Ships Same Business Day
- Weight:
- 5.44 LBS
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- TYPE:
- COMPLETE
- FEATURES:
- INCLUDES SPRINGS
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$187.47 -
BARNETT Clutch Friction Plates 302-30-20009
BARNETT
$130.00Designed to perform under extreme heat conditions, Allow smooth, precise shifting, 100% asbestos free, Carbon fiber plates have high static and dynamic coefficient of friction for smooth positive engagement and release, Aramid plates have higher density...DS223731- SKU:
- DS223731
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- UNITS:
- SET OF 6
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$130.00 -
BARNETT Scorpion Clutch 608-30-10086
BARNETT
$685.94Greatly increases clutch capacity, Provides smoother shifting, more progressive engagement, Multiple spring pressure options, Includes steel hub, billet pressure plate, clutch plates, and coil springs, Designed to fit the stock type basket, Ideal for...DS223722- SKU:
- DS223722
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- SCORPION
- PRODUCT NAME:
- CLUTCH ASSEMBLY
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$685.94 -
BARNETT Heavy Duty Clutch Springs 501-90-10069
BARNETT
$37.55Include 10 standard or heavy-duty springs, Made in the U.S.A.DS223741- SKU:
- DS223741
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- GRAY
- PRODUCT NAME:
- SPRING SET
- SPRING MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- UNITS:
- SET OF 10
$37.55 -
BARNETT Drive Plate 401-30-119006
BARNETT
$15.23Designed to perform under extreme heat conditions, Allow smooth, precise shifting, Can be run wet or dry, Steel plates are manufactured under strict quality-control standards, Made in the U.S.A.DS223745- SKU:
- DS223745
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- PRODUCT NAME:
- DRIVE PLATE
- UNITS:
- EACH
$15.23 -
BARNETT Drive Plate 401-30-047050
BARNETT
$8.37Designed to perform under extreme heat conditions, Allow smooth, precise shifting, Can be run wet or dry, Steel plates are manufactured under strict quality-control standards, Made in the U.S.A.DS223752- SKU:
- DS223752
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- DRIVE PLATE
- TYPE:
- CLUTCH
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$8.37 -
BARNETT Clutch Backing Plate 401-30-089070
BARNETT
$12.55Heavy-gauge steel, Made in the U.S.A.DS223753- SKU:
- DS223753
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- PRODUCT NAME:
- BACKING PLATE
- RIDING STYLE:
- STREET
$12.55 -
BARNETT Clutch Springs 501-50-06053
BARNETT
$30.41Include six springs per set, Made in the U.S.A.DS223755- SKU:
- DS223755
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- STYLE:
- HEAVY DUTY
- PRODUCT NAME:
- SPRING SET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STYLE:
- COIL SPRING
- SPRING MATERIAL:
- STEEL
- TYPE:
- CLUTCH
- UNITS:
- 6 PACK
$30.41 -
BARNETT Clutch Spacers 319-30-10003
BARNETT
$3.92Spacers assist in adjusting the pressure plate (releasing disc), Includes six spacers, Made in the U.S.A.DS223757- SKU:
- DS223757
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MATERIAL:
- STAINLESS STEEL
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- SPACER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- 6 PACK
$3.92 -
BARNETT Clutch Springs 501-66-10041
BARNETT
$37.55Include 10 standard or heavy-duty springs, Made in the U.S.A.DS223759- SKU:
- DS223759
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- COLOR/FINISH:
- RED
- TYPE:
- CLUTCH
- UNITS:
- SET OF 10
- SPRING MATERIAL:
- STEEL
- PRODUCT NAME:
- SPRING SET
- RIDING STYLE:
- STREET
$37.55 -
BARNETT Clutch Springs 501-32-10068
BARNETT
$37.55Include 10 standard or heavy-duty springs, Made in the U.S.A.DS223760- SKU:
- DS223760
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPRING SET
- COLOR/FINISH:
- BLUE
- UNITS:
- SET OF 10
- SPRING MATERIAL:
- STEEL
- TYPE:
- CLUTCH
$37.55
