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
-
DRAG SPECIALTIES Rear Wheel Sprocket - 48-Tooth - Black 19093EB
DRAG SPECIALTIES
$75.92A worn or damaged rear sprocket directly compromises your power delivery and chain efficiency, leading to poor acceleration and increased drivetrain wear. The DRAG SPECIALTIES 48-Tooth Rear Wheel Sprocket delivers the durability and precision fit your...12101841- SKU:
- 12101841
- Availability:
- Ships Same Business Day
- Weight:
- 4.95 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- DRIVE
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- OFFSET IMPERIAL:
- 0.23'
$75.92Qty in Cart: 0Quantity:Price:$75.92Subtotal: -
DRAG SPECIALTIES Rear Sprocket - Gloss Black - Dished - 46-Tooth 16431EB
DRAG SPECIALTIES
$91.97If you're transitioning from belt drive to chain drive, you need a sprocket engineered for precision and durability—this Drag Specialties rear sprocket delivers the reliability and performance that serious riders demand. The dished design reduces...12101847- SKU:
- 12101847
- Availability:
- Ships Same Business Day
- Weight:
- 4.31 LBS
- BORE SIZE IMPERIAL:
- 2.220'
- OFFSET IMPERIAL:
- 0.230'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- TYPE:
- CONVERSION
- TYPE:
- DRIVE
$91.97 -
DRAG SPECIALTIES Rear Sprocket - Gloss Black - Dished - 51-Tooth 16426EB
DRAG SPECIALTIES
$96.25If you're transitioning from belt drive to chain drive, this 51-tooth rear sprocket delivers the direct power transfer and adjustability serious racers demand. The dished design reduces unsprung weight while the gloss black finish resists corrosion in...12101850- SKU:
- 12101850
- Availability:
- Ships Same Business Day
- Weight:
- 4.91 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- CONVERSION
- TYPE:
- DRIVE
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- OFFSET IMPERIAL:
- 0.230'
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- STEEL
- BORE SIZE IMPERIAL:
- 2.220'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
$96.25Qty in Cart: 0Quantity:Price:$96.25Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 21 Tooth 71563
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly compromises your transmission's ability to transfer power efficiently to the chain, resulting in power loss and accelerated wear across your drivetrain. The DRAG SPECIALTIES 21-tooth replacement restores...12120738- SKU:
- 12120738
- Availability:
- Ships Same Business Day
- Weight:
- 1.33 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 21
- TYPE:
- MAINSHAFT
- CHAIN SIZE:
- 530
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
$32.05Qty in Cart: 0Quantity:Price:$32.05Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 23 Tooth 17502
DRAG SPECIALTIES
$33.12A worn or damaged mainshaft sprocket compromises power delivery and introduces drivetrain slop that compounds over successive gear shifts. This DRAG SPECIALTIES replacement delivers OEM-level precision and durability without the guesswork of inferior...12120697- SKU:
- 12120697
- Availability:
- Ships Same Business Day
- Weight:
- 1.23 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 23
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
$33.12Qty in Cart: 0Quantity:Price:$33.12Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 24 Tooth 17503
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly impacts your power delivery and chain integrity, especially under high-load conditions. This Drag Specialties 24-tooth replacement restores precise engagement with your 530 chain, ensuring consistent...12120698- SKU:
- 12120698
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- CHAIN SIZE:
- 530
- TYPE:
- MAINSHAFT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 24
- UNITS:
- EACH
$32.05Qty in Cart: 0Quantity:Price:$32.05Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 25 Tooth 17504
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly impacts your transmission's efficiency and chain engagement, leading to power loss and premature wear on your entire drivetrain. This DRAG SPECIALTIES replacement delivers OEM-quality performance with...12120699- SKU:
- 12120699
- Availability:
- Ships Same Business Day
- Weight:
- 1.43 LBS
- CHAIN SIZE:
- 530
- TYPE:
- MAINSHAFT
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 25
- UNITS:
- EACH
$32.05Qty in Cart: 0Quantity:Price:$32.05Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 22-Tooth 70165
DRAG SPECIALTIES
$29.91A worn or damaged mainshaft sprocket can compromise your entire drivetrain's efficiency and power delivery. This OEM-style replacement from Drag Specialties restores precise chain engagement and eliminates slack, ensuring consistent acceleration and...12120700- SKU:
- 12120700
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 22
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- RIDING STYLE:
- STREET
- CHAIN SIZE:
- 530
$29.91 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 24 Tooth 70167
DRAG SPECIALTIES
$32.05A worn or damaged mainshaft sprocket directly impacts power delivery and chain alignment—compromising both acceleration and longevity of your drivetrain. The DRAG SPECIALTIES 24-tooth sprocket restores OEM performance specifications with heat-treated...12120702- SKU:
- 12120702
- Availability:
- Ships Same Business Day
- Weight:
- 1.53 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 24
- CHAIN SIZE:
- 530
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$32.05Qty in Cart: 0Quantity:Price:$32.05Subtotal: -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 24 Tooth 70171
DRAG SPECIALTIES
$30.98A worn or damaged mainshaft sprocket directly compromises power transfer and acceleration consistency—two non-negotiables in drag racing and high-performance riding. This OEM-style 24-tooth sprocket from Drag Specialties restores precise gear engagement...12120706- SKU:
- 12120706
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 24
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
$30.98Qty in Cart: 0Quantity:Price:$30.98Subtotal: -
DRAG SPECIALTIES Clutch Adjuster Plate 1132-0590
DRAG SPECIALTIES
$56.17Proper clutch adjustment is critical to consistent engagement and reliable power delivery—whether you're fine-tuning a street bike or dialing in a competition machine. The DRAG Specialties Clutch Adjuster Plate gives you precision control over clutch...11320590- SKU:
- 11320590
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- ADJUSTER PLATE
$56.17 -
DRAG SPECIALTIES Clutch Shell 71443
DRAG SPECIALTIES
$369.72A worn or damaged clutch shell compromises your entire primary drive system, leading to slippage, noise, and potential catastrophic failure on the track or street. The DRAG Specialties Clutch Shell 71443 is a direct OEM replacement that restores proper...DS196181- 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
$86.62A worn or damaged rear sprocket directly impacts your chain engagement and overall drivetrain efficiency. This DRAG SPECIALTIES 51-tooth replacement delivers consistent power transfer and reliable performance whether you're building a custom cruiser or...DS325359- 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
$86.62 -
DRAG SPECIALTIES Upper Belt Guard - 91-99 XL - Chrome 74664
DRAG SPECIALTIES
$86.27The upper belt guard protects your primary drive system from debris, moisture, and accidental contact while maintaining clean aesthetics on your cruiser. A properly functioning belt guard extends component life and prevents costly mid-ride failures...DS325205- 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
$20.95A quality inspection cover is essential for maintaining engine integrity and protecting critical internal components from contamination and debris. The DRAG Specialties Inspection Cover 14009 provides secure, precision-engineered access to your engine's...DS325293- 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
$20.95Qty in Cart: 0Quantity:Price:$20.95Subtotal: -
On Sale
Belt Drives Ltd Front Pulley 1-1/2" 45EVSH Harley-Davidson FLH 1955-1964 DS360416
BELT DRIVES LTD.
MSRP: $378.77Now: $340.89Was: $378.77Experience 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: $378.77Now: $340.89Was: $378.77Qty in Cart: 0Quantity:Price:MSRP: $378.77Now: $340.89Was: $378.77Subtotal: -
COVINGTONS Inspection Cover - Black - Finned C1195-B
COVINGTONS
$90.95A quality inspection cover protects your engine's internal components from debris and contaminants while maintaining clean aesthetics under the hood. The finned design enhances airflow and heat dissipation, while the precision CNC-machining ensures 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
$90.95A quality inspection cover serves both functional and aesthetic purposes—it protects critical internal components from debris and moisture while presenting a finished appearance that reflects your attention to detail. The COVINGTONS Inspection Cover...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
$216.95A derby cover serves as both functional protection and visual statement on your engine. The COVINGTONS finned design dissipates heat more effectively than flat covers while adding aggressive styling that complements modern cruiser aesthetics. This...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: $116.00Now: $104.40Was: $116.00A clean, protected pulley system is essential for both aesthetic appeal and reliable primary drive operation on your Heritage Softail. The Belt Drives Ltd Mini-Dome Pulley Cover Kit delivers OEM-quality protection while giving your motor that finished,...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: $116.00Now: $104.40Was: $116.00
