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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BARNETT Extra Plate Kit 303-30-10010
BARNETT
$146.62Kit 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.DS223761- SKU:
- DS223761
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- FEATURES:
- INCLUDES SPRINGS
- UNITS:
- KIT
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- TYPE:
- COMPLETE
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
$146.62 -
BARNETT Clutch Friction Plates 302-30-10007
BARNETT
$65.01Designed 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...DS223762- SKU:
- DS223762
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- TYPE:
- CLUTCH
- UNITS:
- KIT
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- PRODUCT NAME:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
$65.01 -
BARNETT Scorpion Clutch 608-30-10017
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...11300436- SKU:
- 11300436
- Availability:
- Ships Same Business Day
- Weight:
- 9.80 LBS
- UNITS:
- KIT
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- SCORPION
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- CLUTCH ASSEMBLY
- RIDING STYLE:
- STREET
$685.94 -
BARNETT Clutch Kit 306-30-20015
BARNETT
$291.73Carbon fiber plates have high static and dynamic coefficient of friction for smooth, positive engagement and release, Steel plates are manufactured under strict quality-control standards, Kit includes seven standard friction plates, one narrow friction...11312181- SKU:
- 11312181
- Availability:
- Ships Same Business Day
- Weight:
- 1.83 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH PLATE KIT
$291.73 -
BARNETT Clutch - Cable Retro Fit 618-30-23806
BARNETT
$413.32New low-profile design fits under stock primary cover, Low-profile design fits under stock primary cover, Direct bolt-on design retro-fits to existing Scorpion billet clutches, Direct bolt-on design retro-fits to existing Scorpion billet clutches,...11312447- SKU:
- 11312447
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- MODEL:
- SCORPION
- PRODUCT NAME:
- PRESSURE PLATE
- RIDING STYLE:
- STREET
- STYLE:
- MECHANICAL CLUTCH
- TYPE:
- CLUTCH
- UNITS:
- KIT
- STYLE:
- LOCK-UP
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
$413.32 -
BARNETT Lock Up Clutch Kit 618-30-23098
BARNETT
$413.32Specifically designed to fit under the stock or aftermarket primary/derby covers and increase the capacity of your stock clutch by using stainless steel weighted arms that progressively increase pressure to the clutch as rpm increases, This also allows...11312404- SKU:
- 11312404
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- PRODUCT NAME:
- PRESSURE PLATE
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- STYLE:
- LOCK-UP
- MATERIAL:
- ALUMINUM
- MODEL:
- SCORPION
- TYPE:
- CLUTCH
$413.32 -
BARNETT Lock Up Clutch Kit - Hydraulic 618-30-33098
BARNETT
$413.32Specifically designed to fit under the stock or aftermarket primary/derby covers and increase the capacity of your stock clutch by using stainless steel weighted arms that progressively increase pressure to the clutch as rpm increases, This also allows...11312405- SKU:
- 11312405
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MODEL:
- SCORPION
- STYLE:
- LOCK-UP
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PRESSURE PLATE
- UNITS:
- KIT
$413.32 -
BARNETT '99-'06 Big Twin Chrome/Clear Derby Cover 343-30-43006
BARNETT
$287.71Designed to fit OEM primary covers on select Harley Davidson Big Twins, Features a clear 0.25" thick polycarbonate window to your clutch, Window is scratch and discoloration resistant and is sealed with an o-ring gasket, Derby cover gasket also included11070438- SKU:
- 11070438
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- SCORPION SERIES
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$287.71 -
BARNETT Billet Pressure Plate 319-30-20118
BARNETT
$145.45Strong billet aluminum design, works with stock or heavy-duty diaphragm spring, Made in the U.S.A.20121270- SKU:
- 20121270
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- PRESSURE PLATE
- UNITS:
- EACH
$145.45 -
BARNETT Scorpion Clutch Basket - Big Twin '07-'16 321-30-02012
BARNETT
$497.63Precision machined from billet aluminum and hard anodized, this basket is superior in quality and durability to the stock basket, Simply remove your stock ring gear/primary gear and bolt on the new Scorpion basket, All hardware and instructions are...11320930- SKU:
- 11320930
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- MODEL:
- SCORPION
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- BOLT-ON
- PRODUCT NAME:
- CLUTCH BASKET
$497.63 -
BARNETT Arm Shaft Clutch 356-40-80014
BARNETT
$113.11Redesigned for better clutch separation, smoother shifting, and ease in finding neutral, Made in the U.S.A.11321343- SKU:
- 11321343
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- SHAFT
- TYPE:
- CLUTCH ARM
$113.11 -
BARNETT Extra Plate Clutch Kit 304-40-10016
BARNETT
$267.13The segmented friction plates are designed for more oil flow resulting in cooler operating temps and a smoother, more positive clutch engagement, Increased clutch capacity and performance, Measured to ensure proper fit and performance, Kit includes 8...11313378- SKU:
- 11313378
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- FRICTION PLATE MATERIAL:
- ARAMID FIBER
- PRODUCT NAME:
- CLUTCH KIT
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$267.13 -
BARNETT Scout Clutch Kit 303-40-10015
BARNETT
$251.31Includes friction plates, steel plates, and springs11313379- SKU:
- 11313379
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- UNITS:
- KIT
- FRICTION PLATE MATERIAL:
- ARAMID FIBER
- PRODUCT NAME:
- CLUTCH KIT
$251.31 -
BARNETT M8 Clutch Kit 303-30-10019
BARNETT
$291.73Includes friction plates, steel plates, and springs11313325- SKU:
- 11313325
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- FRICTION PLATE MATERIAL:
- ARAMID FIBER
- PRODUCT NAME:
- CLUTCH KIT
$291.73 -
BARNETT Complete Clutch Kit - Indian 303-40-20014
BARNETT
$239.00Carbon fiber, Includes seven frictions, six steels and a set of five heavy-duty springs, Made in the U.S.A.11313025- SKU:
- 11313025
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES SPRINGS
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- TYPE:
- COMPLETE
$239.00 -
BARNETT Scorpion Clutch Basket - M8 '17-'19 321-30-02017
BARNETT
$497.63Precision machined from billet aluminum and hard anodized, this basket is superior in quality and durability to the stock basket, Simply remove your stock ring gear/primary gear and bolt on the new Scorpion basket, All hardware and instructions are...11321000- SKU:
- 11321000
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- BOLT-ON
- MODEL:
- SCORPION
- UNITS:
- EACH
- PRODUCT NAME:
- CLUTCH BASKET
$497.63 -
BARNETT Clutch Spring Conversion Kit - Hydraulic Clutch 511-30-10904
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,...11312051- SKU:
- 11312051
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- PRODUCT NAME:
- CONVERSION KIT
- STYLE:
- HYDRAULIC CLUTCH
- TYPE:
- CLUTCH SPRING
- MATERIAL:
- BILLET ALUMINUM
- UNITS:
- KIT
- COLOR/FINISH:
- ORANGE
- RIDING STYLE:
- STREET
$211.96 -
BARNETT Clutch - Hydraulic Retro Fit 618-30-33806
BARNETT
$413.32New low-profile design fits under stock primary cover, Low-profile design fits under stock primary cover, Direct bolt-on design retro-fits to existing Scorpion billet clutches, Direct bolt-on design retro-fits to existing Scorpion billet clutches,...11312448- SKU:
- 11312448
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
- STYLE:
- HYDRAULIC CLUTCH
- PRODUCT NAME:
- PRESSURE PLATE
- TYPE:
- CLUTCH
- UNITS:
- KIT
- COLOR/FINISH:
- ORANGE
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- MODEL:
- SCORPION
- STYLE:
- LOCK-UP
$413.32 -
ALTO PRODUCTS Carbonite Clutch 095750EC
ALTO PRODUCTS
$253.95Made from 3M™ carbon-based friction-based material to withstand higher coefficients of friction and higher temperatures than any other product available, Kolene® Melonite® treated steels for enhanced performance, engagement, longer life and cooler...11310462- SKU:
- 11310462
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- PRODUCT NAME:
- PLATE SET
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- TYPE:
- CLUTCH
- UNITS:
- KIT
- MODEL:
- CARBONITE POWERPAK
- RIDING STYLE:
- STREET
$253.95Qty in Cart: 0Quantity:Price:$253.95Subtotal: -
ALTO PRODUCTS Carbonite Clutch 095750NC
ALTO PRODUCTS
$239.95Made from 3M™ carbon-based friction-based material to withstand higher coefficients of friction and higher temperatures than any other product available, Kolene® Melonite® treated steels for enhanced performance, engagement, longer life and cooler...11310463- SKU:
- 11310463
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- PRODUCT NAME:
- PLATE SET
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- MODEL:
- CARBONITE POWERPAK
- TYPE:
- CLUTCH
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$239.95
