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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DRAG SPECIALTIES Clutch Shell 71443
DRAG SPECIALTIES
$369.72Replacement clutch shell with starter ring gearDS196181- SKU:
- DS196181
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH SHELL
- TYPE:
- CLUTCH
$369.72Qty in Cart: 0Quantity:Price:$369.72Subtotal: -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Chrome 19387-BX20
DRAG SPECIALTIES
$84.19High-grade carbon steel replacement rear wheel sprocket, 1.9" center holeDS325359- SKU:
- DS325359
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 51
- TYPE:
- DRIVE
- PRODUCT NAME:
- SPROCKET
- CHAIN SIZE:
- 530
- MATERIAL:
- CARBON STEEL
- OFFSET IMPERIAL:
- 0.46'
- UNITS:
- EACH
$84.19Qty in Cart: 0Quantity:Price:$84.19Subtotal: -
DRAG SPECIALTIES Upper Belt Guard - 91-99 XL - Chrome 74664
DRAG SPECIALTIES
$86.27Simple bolt-on installationDS325205- SKU:
- DS325205
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- GUARD
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- UPPER
- TYPE:
- REAR BELT
$86.27Qty in Cart: 0Quantity:Price:$86.27Subtotal: -
DRAG SPECIALTIES Inspection Cover 14009
DRAG SPECIALTIES
$21.58Machined from steelDS325293- SKU:
- DS325293
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- MOUNTING STYLE:
- 4 HOLE
- MATERIAL:
- STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- INSPECTION COVER
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY
$21.58 -
On Sale
Belt Drives Ltd Front Pulley 1-1/2" 45EVSH Harley-Davidson FLH 1955-1964 DS360416
BELT DRIVES LTD.
MSRP: $289.95Now: $260.96Was: $289.95Experience superior performance with the BELT DRIVES LTD. Front Pulley, expertly crafted from high-quality aluminum and finished with a hard anodized coating. Proudly made in the U.S.A., this pulley is designed for durability and precision, ensuring...DS360416- SKU:
- DS360416
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- TOOTH COUNT:
- 45
- UNITS:
- EACH
- TYPE:
- MOTOR SHAFT
MSRP: $289.95Now: $260.96Was: $289.95Qty in Cart: 0Quantity:Price:MSRP: $289.95Now: $260.96Was: $289.95Subtotal: -
On Sale
COVINGTONS Derby Cover - Diamond Edge - Machine Head C1076-D
COVINGTONS
MSRP: $406.95Now: $260.00Was: $406.95CNC-machined from billet aluminum, Includes mounting hardware, Made in the U.S.A.11070494- SKU:
- 11070494
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- STYLE:
- MACHINE HEAD
- TYPE:
- DERBY
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $406.95Now: $260.00Was: $406.95Qty in Cart: 0Quantity:Price:MSRP: $406.95Now: $260.00Was: $406.95Subtotal: -
COVINGTONS Inspection Cover - Black - Finned C1195-B
COVINGTONS
$90.95CNC-machined from billet aluminum, Made in the U.S.A.11070249- SKU:
- 11070249
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- BILLET ALUMINUM
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- COLOR/FINISH:
- POWDER-COATED
- MOUNTING STYLE:
- 4 HOLE
- PRODUCT NAME:
- COVER
- STYLE:
- FINNED
- UNITS:
- EACH
- TYPE:
- INSPECTION
$90.95 -
COVINGTONS Inspection Cover - Chrome - Finned C1195-C
COVINGTONS
$90.95CNC-machined from billet aluminum, Made in the U.S.A.11070250- SKU:
- 11070250
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- INSPECTION
- COLOR/FINISH:
- CHROME
- MOUNTING STYLE:
- 4 HOLE
- PRODUCT NAME:
- COVER
- STYLE:
- FINNED
- UNITS:
- EACH
$90.95Qty in Cart: 0Quantity:Price:$90.95Subtotal: -
COVINGTONS Derby Cover - Black - Finned C1072-B
COVINGTONS
$216.95CNC-machined from billet aluminum, Includes mounting hardware, Made in the U.S.A.11070122- SKU:
- 11070122
- Availability:
- Ships Same Business Day
- Weight:
- 1.98 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- TYPE:
- DERBY
- UNITS:
- EACH
$216.95Qty in Cart: 0Quantity:Price:$216.95Subtotal: -
On Sale
Belt Drives Ltd Mini-Dome Pulley Cover Kit for Harley-Davidson FLST Heritage Softail 1986-1989 MD-200
BELT DRIVES LTD.
MSRP: $88.95Now: $80.06Was: $88.95Enhance the performance and appearance of your pulley system with the Mini-Dome Pulley Covers MD-200. This comprehensive kit includes everything you need for a seamless installation, ensuring your motor operates efficiently and looks great. Proudly made...DS360420- SKU:
- DS360420
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- UNITS:
- KIT
- TOOTH COUNT:
- 47
- TOOTH COUNT:
- 76
- TYPE:
- PULLEY
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
MSRP: $88.95Now: $80.06Was: $88.95 -
On Sale
Belt Drives Ltd Starter Housing for 1990-2006 Harley Davidson Softail TFSH-100
BELT DRIVES LTD.
MSRP: $121.95Now: $109.76Was: $121.95Enhance your BDL Belt Drive clutches with the premium Starter Housing designed specifically for the Top Fuel TFSH-100. This robust housing ensures optimal performance and reliability, making it an essential component for serious racers and enthusiasts...11200047- SKU:
- 11200047
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- HOUSING
MSRP: $121.95Now: $109.76Was: $121.95 -
On Sale
Belt Drives Ltd 9T Starter Pinion Gear for 1996-2006 Harley Davidson FLHR Road King PG-100A
BELT DRIVES LTD.
MSRP: $156.95Now: $141.26Was: $156.95Enhance your BDL Belt Drive clutches with the precision-engineered Pinion Gear +1" PG-100A. Designed for optimal performance and durability, this gear ensures smooth operation and efficient power transfer. Upgrade your system for improved reliability and...11200057- SKU:
- 11200057
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- LENGTH METRIC:
- 115.8 MM
- PRODUCT NAME:
- PINION GEAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 9
- UNITS:
- KIT
- LENGTH IMPERIAL:
- 4-9/16'
- LENGTH:
- 115,8 MM (4-9/16')
MSRP: $156.95Now: $141.26Was: $156.95 -
On Sale
Belt Drives Ltd 2" SS Belt Drive Without Cover 1990-2006 Harley-Davidson Softail SS-2
BELT DRIVES LTD.
MSRP: $2,411.95Now: $2,170.76Was: $2,411.95Experience unmatched performance and sleek design with our 2" Stainless Steel Belt Drive. Engineered with a robust one-piece billet motor plate, this belt drive ensures reliability and efficiency, making it the perfect addition to your ride. ...11200082- SKU:
- 11200082
- Availability:
- Ships Same Business Day
- Weight:
- 36.20 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT DRIVE KIT
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 2'
MSRP: $2,411.95Now: $2,170.76Was: $2,411.95 -
On Sale
Belt Drives Ltd Primary Chain Drive Kit with Ball-Bearing Lockup Clutch for 1990-2006 Harley-Davidson Softail and Dyna Models CDBCS-1-90
BELT DRIVES LTD.
MSRP: $1,344.95Now: $1,210.46Was: $1,344.95Upgrade your ride with the BDL Primary Drive Kit, designed for optimal performance and ease of use. Featuring a state-of-the-art ball-bearing lockup clutch, this kit enhances power transfer while significantly reducing clutch effort. Enjoy a smoother and...11200179- SKU:
- 11200179
- Availability:
- Ships Same Business Day
- Weight:
- 23.35 LBS
- RIDING STYLE:
- STREET
- FEATURES:
- INCLUDES COMPENSATOR
- UNITS:
- KIT
- TOOTH COUNT:
- 25
- PRODUCT NAME:
- PRIMARY CHAIN DRIVE KIT
MSRP: $1,344.95Now: $1,210.46Was: $1,344.95 -
On Sale
Belt Drives Ltd 3" Belt Drive Kit for 1990-2006 Harley-Davidson Softail Models EVOB-9S
BELT DRIVES LTD.
MSRP: $2,684.95Now: $2,416.46Was: $2,684.95Experience superior performance with the Belt Drives Ltd. 3" Belt Drive EVOB-9S, designed for seamless integration and optimal efficiency. This comprehensive kit includes everything you need for a straightforward installation, ensuring a reliable and...11200251- SKU:
- 11200251
- Availability:
- Ships Same Business Day
- Weight:
- 38.10 LBS
- MATERIAL:
- KEVLAR
- PRODUCT NAME:
- BELT DRIVE KIT
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- MATERIAL:
- STEEL
- WIDTH IMPERIAL:
- 3'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $2,684.95Now: $2,416.46Was: $2,684.95 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit for 1990-2006 Harley-Davidson Softail EV-575
BELT DRIVES LTD.
MSRP: $2,556.95Now: $2,301.26Was: $2,556.95Experience superior power transfer with the Enhanced Performance Drive Belt EV-575, designed for optimal efficiency and reliability. Featuring a ball-bearing lockup clutch, this kit offers increased surface contact for smoother operation, ensuring your...11200226- SKU:
- 11200226
- Availability:
- Ships Same Business Day
- Weight:
- 34.30 LBS
- COLOR/FINISH:
- CHROME
- TOOTH COUNT:
- 142
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- KEVLAR
- STYLE:
- RIBBED
- UNITS:
- KIT
MSRP: $2,556.95Now: $2,301.26Was: $2,556.95 -
On Sale
Belt Drives Ltd Belt Drive Kit for 1955-1964 Harley-Davidson Models 61-39SK-2
BELT DRIVES LTD.
MSRP: $627.95Now: $565.16Was: $627.95Upgrade your motorcycle's performance with the Belt Drives Ltd. Belt Drive Kit designed for models from 1955 to early 1984. This kit features a robust 61-tooth basket and a precision-engineered 39-tooth front pulley, ensuring smooth power transfer and...11200423- SKU:
- 11200423
- Availability:
- Ships Same Business Day
- Weight:
- 8.15 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
MSRP: $627.95Now: $565.16Was: $627.95Qty in Cart: 0Quantity:Price:MSRP: $627.95Now: $565.16Was: $627.95Subtotal: -
On Sale
Belt Drives Ltd Inner Primary Spacer for Harley-Davidson 1984-2006 PS-500
BELT DRIVES LTD.
MSRP: $66.95Now: $60.26Was: $66.95Enhance your motorcycle's performance with the BELT DRIVES LTD. Inner Primary Spacer PS-500, designed specifically for fat tire and wide frame applications. Crafted with precision in the U.S.A., this polished spacer ensures a perfect fit between the...22145002- SKU:
- 22145002
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- SPACER
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
- WIDTH IMPERIAL:
- 1/2'
MSRP: $66.95Now: $60.26Was: $66.95 -
On Sale
Belt Drives Ltd 1-1/4" Inner Primary Spacer for 1984-2006 Harley-Davidson Models PS-1250
BELT DRIVES LTD.
MSRP: $137.95Now: $124.16Was: $137.95Enhance your motorcycle's performance with the BELT DRIVES LTD. Inner Primary Spacer PS-1250. Specifically designed for fat tire and wide frame applications, this high-quality spacer ensures a perfect fit between the inner primary and motor, providing...22145005- SKU:
- 22145005
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SPACER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/4'
- TYPE:
- INNER PRIMARY
MSRP: $137.95Now: $124.16Was: $137.95Qty in Cart: 0Quantity:Price:MSRP: $137.95Now: $124.16Was: $137.95Subtotal: -
On Sale
Belt Drives Ltd Inner Primary Spacer for Harley-Davidson Softail 2001-2006 PS-1500
BELT DRIVES LTD.
MSRP: $154.95Now: $139.46Was: $154.95Enhance your motorcycle's performance with the BELT DRIVES LTD. Inner Primary Spacer PS-1500, designed specifically for fat tire and wide frame applications. This high-quality spacer ensures a perfect fit between the inner primary and motor, providing...22145006- SKU:
- 22145006
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- TYPE:
- INNER PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER
MSRP: $154.95Now: $139.46Was: $154.95
