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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EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37088-84 A-37088-84
EASTERN MOTORCYCLE PARTS
$26.95Individual component, Made in the U.S.A.DS192512- SKU:
- DS192512
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- PUSHROD CENTER
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 10.3750'
- TYPE:
- CLUTCH
$26.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37088-85 A-37088-85
EASTERN MOTORCYCLE PARTS
$26.95Individual component, Made in the U.S.A.DS192513- SKU:
- DS192513
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- PUSHROD CENTER
- LENGTH IMPERIAL:
- 11.1250'
- TYPE:
- CLUTCH
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$26.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37088-87 A-37088-87
EASTERN MOTORCYCLE PARTS
$26.95Individual component, Made in the U.S.A.DS192514- SKU:
- DS192514
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH
- LENGTH IMPERIAL:
- 11.3750'
- PRODUCT NAME:
- PUSHROD CENTER
$26.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37088-90 A-37088-90
EASTERN MOTORCYCLE PARTS
$26.95Individual component, Made in the U.S.A.DS192515- SKU:
- DS192515
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- PUSHROD CENTER
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 10.870'
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$26.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37285-41 J-1-145
EASTERN MOTORCYCLE PARTS
$31.95Made in the U.S.A.DS192516- SKU:
- DS192516
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PUSHROD
- TYPE:
- CLUTCH
- LENGTH IMPERIAL:
- 13'
- UNITS:
- EACH
$31.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37285-65 J-1-146
EASTERN MOTORCYCLE PARTS
$31.95Made in the U.S.A.DS192517- SKU:
- DS192517
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- LENGTH IMPERIAL:
- 13-1/4'
- PRODUCT NAME:
- PUSHROD
- TYPE:
- CLUTCH
$31.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37285-70 J-1-147
EASTERN MOTORCYCLE PARTS
$31.95Made in the U.S.A.DS192518- SKU:
- DS192518
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- LENGTH IMPERIAL:
- 13-15/16'
- PRODUCT NAME:
- PUSHROD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$31.95 -
EASTERN MOTORCYCLE PARTS Clutch Push Rod - 37285-75A J-1-148
EASTERN MOTORCYCLE PARTS
$31.95Made in the U.S.A.DS192519- SKU:
- DS192519
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- PUSHROD
- TYPE:
- CLUTCH
- LENGTH IMPERIAL:
- 14-1/16'
$31.95 -
COLONY Kicker Spring Stud - 4-Speed 8119-1
COLONY
$6.95Chrome-plated reproduction of original kicker spring stud, Round, smooth head, Made in the U.S.A.DS190024- SKU:
- DS190024
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- KICKER SPRING
- PRODUCT NAME:
- STUD
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$6.95 -
COLONY Transmission Stud - 3/8-16 x 3/8-24 9653-4
COLONY
$19.95Studs are heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.DS189937- SKU:
- DS189937
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- STYLE:
- REPLACEMENT
- TYPE:
- TRANSMISSION
- DIAMETER - THREAD SIZE:
- 3/8-24
- PRODUCT NAME:
- TRANSMISSION BOTTOM STUD
- UNITS:
- 4 PACK
- DIAMETER - THREAD SIZE:
- 3/8-16
$19.95 -
COLONY Transmission Stud - 7/16-14 x 3/8-24 9654-4
COLONY
$20.95Studs are heat-treated for strength and durability, Equal or surpass original equipment, Made in the U.S.A.DS189936- SKU:
- DS189936
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DIAMETER - THREAD SIZE:
- 3/8-24
- DIAMETER - THREAD SIZE:
- 7/16-14
- PRODUCT NAME:
- TRANSMISSION BOTTOM STUD
- STYLE:
- OVERSIZE
- STYLE:
- REPLACEMENT
- TYPE:
- TRANSMISSION
- RIDING STYLE:
- STREET
- UNITS:
- 4 PACK
$20.95 -
DRAG SPECIALTIES Chain Tensioner Mount 18120-BX-LB1
DRAG SPECIALTIES
$81.32Used for updating an old adjuster system or when building a new bike from the ground up, Complete kit includes washers, adjuster plate, bolts, shoe, adjuster and nutDS181201- SKU:
- DS181201
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- PRODUCT NAME:
- CHAIN ADJUSTER KIT
- MATERIAL:
- NYLON
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- UNITS:
- KIT
$81.32Qty in Cart: 0Quantity:Price:$81.32Subtotal: -
GARDNER-WESTCOTT Primary Cover Hardware P-10-24-08N
GARDNER-WESTCOTT
$67.95Kits features polished chrome steel socket-head bolts, includes primary, inspection and derby covers, Made in the U.S.A.DS175009- SKU:
- DS175009
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BOLT KIT
- COLOR/FINISH:
- CHROME
- TYPE:
- PRIMARY COVER
- MATERIAL:
- STEEL
- UNITS:
- KIT
$67.95 -
GARDNER-WESTCOTT Primary Cover Hardware P-10-17-08
GARDNER-WESTCOTT
$67.95Kits features polished chrome steel socket-head bolts, includes primary, inspection and derby covers, Made in the U.S.A.DS175008- SKU:
- DS175008
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MATERIAL:
- STEEL
- TYPE:
- PRIMARY COVER
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- BOLT KIT
- RIDING STYLE:
- STREET
$67.95Qty in Cart: 0Quantity:Price:$67.95Subtotal: -
GARDNER-WESTCOTT Primary Cover Hardware P-10-18-08
GARDNER-WESTCOTT
$79.95Kits features polished chrome steel socket-head bolts, includes primary, inspection and derby covers, Made in the U.S.A.DS175007- SKU:
- DS175007
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- BOLT KIT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- TYPE:
- PRIMARY COVER
- UNITS:
- KIT
$79.95 -
Jims 4-Speed Transmission Rebuild Kit for Harley-Davidson Electra Glide FLH 1980-1984 33031-80
JIMS
$307.95Revitalize your motorcycle's performance with the JIMS 4-Speed Transmission Rebuild Kit. Engineered for durability and precision, this comprehensive kit includes everything you need to restore your transmission to peak condition, ensuring a smoother ride...DS174298- SKU:
- DS174298
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION REBUILD
- UNITS:
- KIT
$307.95 -
Jims 4-Speed Transmission Rebuild Kit for 1977-1979 Harley-Davidson FXE Super Glide 33031-76L
JIMS
$307.95Upgrade your motorcycle's performance with the JIMS Transmission Rebuild Kit, designed specifically for 4-speed transmissions. This comprehensive kit includes all essential components for a reliable rebuild, ensuring your transmission operates smoothly...DS174297- SKU:
- DS174297
- Availability:
- Ships Same Business Day
- Weight:
- 2.06 LBS
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION REBUILD
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
$307.95 -
Jims 4-Speed Transmission Rebuild Kit for Harley FLH 1976-1977 33031-76E
JIMS
$416.95Revitalize your motorcycle's performance with the JIMS Transmission Rebuild Kit. Designed for precision and durability, this comprehensive kit includes all essential components to ensure a smooth and reliable transmission rebuild. Crafted in the U.S.A.,...DS174296- SKU:
- DS174296
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION REBUILD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$416.95 -
EASTERN MOTORCYCLE PARTS Transmission Drive Gear Spacer Keys A-35175-38
EASTERN MOTORCYCLE PARTS
$12.10All meet or exceed OEM specificationsDS173417- SKU:
- DS173417
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- INSERT
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
$12.10 -
DRAG SPECIALTIES 530 Series - O-Ring - Connecting Link DSRL530POS
DRAG SPECIALTIES
$9.13Replacement connecting link12250178- SKU:
- 12250178
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- SEAL TYPE:
- O-RING
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CONNECTING LINK
- UNITS:
- EACH
- TYPE:
- RIVET
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
$9.13
