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
-
EASTERN MOTORCYCLE PARTS Shifter Cam Thrust Washers A-33212-SET
EASTERN MOTORCYCLE PARTS
$22.95Made in the U.S.A.11060035- SKU:
- 11060035
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- THRUST WASHER
- TYPE:
- SHIFTER CAM
- RIDING STYLE:
- STREET
- UNITS:
- SET
$22.95 -
EASTERN MOTORCYCLE PARTS Bearing Housing Retaining Plate A-35111-36
EASTERN MOTORCYCLE PARTS
$20.95Made in the U.S.A.11060043- SKU:
- 11060043
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- BEARING HOUSING
- PRODUCT NAME:
- RETAINING PLATE
$20.95 -
EASTERN MOTORCYCLE PARTS Retainer With Oil Seal A-35150-52
EASTERN MOTORCYCLE PARTS
$8.95Made in the U.S.A.11060044- SKU:
- 11060044
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- FEATURES:
- INCLUDES SEAL
- PRODUCT NAME:
- RETAINER
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
$8.95 -
EASTERN MOTORCYCLE PARTS Roller Bearing A-9095-23
EASTERN MOTORCYCLE PARTS
$22.95Made in the U.S.A.11060045- SKU:
- 11060045
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- ROLLER BEARING
- UNITS:
- 23 PACK
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
$22.95 -
On Sale
EASTERN MOTORCYCLE PARTS Detent Spring A-34483-02
EASTERN MOTORCYCLE PARTS
Now: $4.00Was: $5.40Top-Quality OEM replacement component, Made in U.S.A.11060046- SKU:
- 11060046
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- STYLE:
- OEM REPLACEMENT
- TYPE:
- DETENT ARM SPRING
- UNITS:
- 10 PACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPRING
Now: $4.00Was: $5.40 -
EASTERN MOTORCYCLE PARTS Detent Arm Spring A-33374-00
EASTERN MOTORCYCLE PARTS
$9.40Top-Quality OEM replacement component, Made in U.S.A.11060047- SKU:
- 11060047
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- STYLE:
- OEM REPLACEMENT
- TYPE:
- DETENT ARM SPRING
- UNITS:
- 10 PACK
- PRODUCT NAME:
- SPRING
- RIDING STYLE:
- STREET
$9.40 -
EASTERN MOTORCYCLE PARTS Pressure Plate - 38010-41 A-38010-41
EASTERN MOTORCYCLE PARTS
$16.95High-quality replacement component, Made in the U.S.A11320573- SKU:
- 11320573
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- 3-STUD
- PRODUCT NAME:
- PRESSURE PLATE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH
$16.95 -
EASTERN MOTORCYCLE PARTS Clutch Springs - 37574-44 A-37574-44
EASTERN MOTORCYCLE PARTS
$4.00Hold bearing plate in place on all three- and five-stud hubs, Made in the U.S.A.11320621- SKU:
- 11320621
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CLUTCH HUB
- TYPE:
- BEARING PLATE
- PRODUCT NAME:
- SPRING
- RIDING STYLE:
- STREET
- UNITS:
- 10 PACK
$4.00 -
EASTERN MOTORCYCLE PARTS Clutch Stud - 37583-41 - 3 Pack A-37583-41
EASTERN MOTORCYCLE PARTS
$41.95Replacement short and long clutch hub studs, Made in the U.S.A.11320622- SKU:
- 11320622
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- TYPE:
- CLUTCH HUB
- UNITS:
- 3 PACK
- LENGTH IMPERIAL:
- 5-1/8'
- PRODUCT NAME:
- STUD
- RIDING STYLE:
- STREET
$41.95 -
EASTERN MOTORCYCLE PARTS Clutch Stud - 37585-41C - 7 Pack A-37585-41
EASTERN MOTORCYCLE PARTS
$26.95Replacement short and long clutch hub studs, Made in the U.S.A.11320623- SKU:
- 11320623
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- TYPE:
- CLUTCH HUB
- UNITS:
- 7 PACK
- LENGTH IMPERIAL:
- 3-11/16'
- PRODUCT NAME:
- STUD
- RIDING STYLE:
- STREET
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
EASTERN MOTORCYCLE PARTS Bearing - Clutch Hub A-37906-84
EASTERN MOTORCYCLE PARTS
$47.95High-quality replacement component11320624- SKU:
- 11320624
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- CLUTCH HUB
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$47.95 -
EASTERN MOTORCYCLE PARTS Bearing Guide A-36730-84
EASTERN MOTORCYCLE PARTS
$22.95Made in the U.S.A.11320699- SKU:
- 11320699
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GUIDE
- TYPE:
- BEARING
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$22.95 -
EASTERN MOTORCYCLE PARTS Bearing Guide - 36731-91 A-36731-91
EASTERN MOTORCYCLE PARTS
$26.95Made in the U.S.A.11320700- SKU:
- 11320700
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- CLUTCH
- PRODUCT NAME:
- GUIDE
- TYPE:
- BEARING
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$26.95 -
EASTERN MOTORCYCLE PARTS Spring Seat - 36793-84 A-36793-84
EASTERN MOTORCYCLE PARTS
$13.40Replacement center and inner spring seats11320701- SKU:
- 11320701
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SPRING SEAT
- RIDING STYLE:
- STREET
- TYPE:
- CENTER
- TYPE:
- CLUTCH
- UNITS:
- 5 PACK
$13.40 -
EASTERN MOTORCYCLE PARTS Spring Seat - 36794-84 A-36794-84
EASTERN MOTORCYCLE PARTS
$13.40Replacement center and inner spring seats11320702- SKU:
- 11320702
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- INNER
- PRODUCT NAME:
- SPRING SEAT
- TYPE:
- CLUTCH
- UNITS:
- 5 PACK
- RIDING STYLE:
- STREET
$13.40 -
EASTERN MOTORCYCLE PARTS Clutch Hub Nut - 37526-56A A-37526-56A
EASTERN MOTORCYCLE PARTS
$14.95High-quality steel construction, Made in the U.S.A.11320704- SKU:
- 11320704
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- HUB NUT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- EACH
$14.95 -
EASTERN MOTORCYCLE PARTS Clutch Hub Nut - 37527-67 A-37527-67
EASTERN MOTORCYCLE PARTS
$14.95High-quality steel construction, Made in the U.S.A.11320705- SKU:
- 11320705
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- HUB NUT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$14.95 -
EASTERN MOTORCYCLE PARTS Backing Plate - 38005-74 A-38005-74
EASTERN MOTORCYCLE PARTS
$43.95High-quality replacement component11320707- SKU:
- 11320707
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- DIAMETER IMPERIAL:
- 6'
- UNITS:
- EACH
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BACKING PLATE
$43.95 -
EASTERN MOTORCYCLE PARTS Clutch Hub Spacers - 5707 - 5 Pack A-5707
EASTERN MOTORCYCLE PARTS
$13.50Made in the U.S.A.11320658- SKU:
- 11320658
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- CLUTCH HUB
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPACER
- UNITS:
- 5 PACK
$13.50Qty in Cart: 0Quantity:Price:$13.50Subtotal: -
EASTERN MOTORCYCLE PARTS Bearing - 36799-91 A-36799-91
EASTERN MOTORCYCLE PARTS
$37.95High-quality replacement component11320917- SKU:
- 11320917
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH SHELL
- PRODUCT NAME:
- BEARING
$37.95
