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 Bearing - 36799-91 A-36799-91
EASTERN MOTORCYCLE PARTS
$37.95Bearing failures compromise your entire drivetrain, causing catastrophic damage that sidelines your bike and empties your wallet. The Eastern Motorcycle Parts 36799-91 is a precision-engineered replacement bearing that restores smooth operation and...11320917- SKU:
- 11320917
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH SHELL
- PRODUCT NAME:
- BEARING
$37.95 -
EASTERN MOTORCYCLE PARTS Bearing - 37722-71 A-37722-71
EASTERN MOTORCYCLE PARTS
$26.95A worn or failing bearing compromises your motorcycle's handling, increases drivetrain wear, and can lead to catastrophic mechanical failure if left unaddressed. The EASTERN MOTORCYCLE PARTS Bearing 37722-71 restores smooth operation and reliability to...11320918- SKU:
- 11320918
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH SPROCKET SHELL
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
EASTERN MOTORCYCLE PARTS Clutch Springs A-38075-41
EASTERN MOTORCYCLE PARTS
$24.95A worn or weak clutch spring pack directly impacts your bike's engagement feel, power delivery consistency, and overall reliability in the saddle. The EASTERN MOTORCYCLE PARTS A-38075-41 delivers 10 heavy-duty replacement springs engineered to restore...11311808- SKU:
- 11311808
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING
- UNITS:
- 10 PACK
$24.95 -
EASTERN MOTORCYCLE PARTS Clutch Springs A-38080-SET
EASTERN MOTORCYCLE PARTS
$26.95A worn or weak clutch spring set directly impacts your bike's engagement quality, throttle response, and overall rideability. The EASTERN MOTORCYCLE PARTS Clutch Springs A-38080-SET delivers the consistent pressure and durability needed for smooth,...11311809- SKU:
- 11311809
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- PRODUCT NAME:
- SPRING SET
- TYPE:
- CLUTCH RELEASE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$26.95 -
EASTERN MOTORCYCLE PARTS Sprocket Rivet And Dowel J-1-120
EASTERN MOTORCYCLE PARTS
$10.95Sprocket assembly requires precision fastening that won't fail under load, and cheap or undersized rivets compromise your entire drivetrain. This genuine Eastern Motorcycle Parts kit delivers OEM-spec fasteners engineered to handle the stress of repeated...12100995- SKU:
- 12100995
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- SPROCKET
- PRODUCT NAME:
- RIVET
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MOUNTING POSITION:
- REAR
$10.95 -
EASTERN MOTORCYCLE PARTS Bearing - Clutch Shell A-36799-84
EASTERN MOTORCYCLE PARTS
$31.95Clutch bearing failures don't just compromise your bike's driveline—they can leave you stranded mid-ride or cost thousands in secondary damage. The EASTERN MOTORCYCLE PARTS Clutch Shell Bearing A-36799-84 restores proper engagement geometry and...11320652- SKU:
- 11320652
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- CLUTCH SHELL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
EASTERN MOTORCYCLE PARTS Clutch Release Bearing - 8885 A-8885
EASTERN MOTORCYCLE PARTS
$22.95A worn or failing clutch release bearing compromises your entire power transfer system, leading to grinding noises, sluggish engagement, and potential catastrophic transmission damage. The EASTERN MOTORCYCLE PARTS A-8885 is a precision-engineered...11320653- SKU:
- 11320653
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH RELEASE
- PRODUCT NAME:
- BEARING
$22.95 -
EASTERN MOTORCYCLE PARTS Inner Clutch Hub - 37554-06A A-37554-06
EASTERN MOTORCYCLE PARTS
$172.95Your motorcycle's clutch hub is the critical interface between engine power and transmission engagement—wear or damage here directly impacts shift quality and overall drivetrain reliability. The EASTERN MOTORCYCLE PARTS Inner Clutch Hub (A-37554-06A) is...11320978- SKU:
- 11320978
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- INNER
- PRODUCT NAME:
- CLUTCH HUB
$172.95 -
EASTERN MOTORCYCLE PARTS Bearings - 8860 - 25 Pack A-8860
EASTERN MOTORCYCLE PARTS
$10.70Precision bearings are critical to reliable clutch engagement and kick arm operation—especially in high-RPM or high-load racing applications where slack or wear directly impacts performance and safety. These Eastern Motorcycle Parts bearings deliver the...04080308- SKU:
- 04080308
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH RAMP
- UNITS:
- 25 PACK
- DIAMETER IMPERIAL:
- 5/16'
- PRODUCT NAME:
- BALL BEARING
- TYPE:
- KICK ARM ASSEMBLY
$10.70 -
EASTERN MOTORCYCLE PARTS Push Rod Bearing A-37310-39
EASTERN MOTORCYCLE PARTS
$112.95If you're running an early-style clutch system, a worn or failing throw-out bearing will compromise your clutch engagement and create dangerous drivetrain slack. The EASTERN MOTORCYCLE PARTS Push Rod Bearing A-37310-39 restores precise clutch actuation...DS192500- SKU:
- DS192500
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH RELEASE
- PRODUCT NAME:
- BEARING
- UNITS:
- KIT
$112.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit A-37279-80
EASTERN MOTORCYCLE PARTS
$41.95A worn or damaged pushrod can compromise valve timing and engine efficiency, leading to poor performance and potential internal damage. This complete four-rod kit eliminates the guesswork of sourcing individual components and ensures your valve train...DS192501- SKU:
- DS192501
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$41.95 -
EASTERN MOTORCYCLE PARTS Push Rod Bearing A-37312-KIT
EASTERN MOTORCYCLE PARTS
$17.95Push rod bearings are critical wear items that directly impact valve train reliability and engine longevity. A worn or failing bearing compromises valve timing accuracy and can lead to catastrophic engine damage if left unaddressed. This complete kit...DS192502- SKU:
- DS192502
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING KIT
- UNITS:
- KIT
- TYPE:
- CLUTCH PUSHROD
$17.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-149
EASTERN MOTORCYCLE PARTS
$66.95Push rods are critical wear components that directly transfer valve actuation from your cam to your rocker arms—worn or bent rods compromise valve timing and engine efficiency. Replacing them with a complete matched set ensures consistent lift and...DS192503- SKU:
- DS192503
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$66.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-150
EASTERN MOTORCYCLE PARTS
$66.95Valve train integrity is critical to engine reliability and performance—worn or bent pushrods compromise both. The EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-150 ensures precise valve actuation with a complete four-rod set engineered for durability and...DS192504- SKU:
- DS192504
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
$66.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-151
EASTERN MOTORCYCLE PARTS
$66.95Worn or bent pushrods compromise valve timing and throttle response, robbing your engine of power and reliability. This complete kit from Eastern Motorcycle Parts eliminates guesswork by supplying all four precision-engineered pushrods in one package,...DS192505- SKU:
- DS192505
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$66.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-152
EASTERN MOTORCYCLE PARTS
$66.95A worn or damaged pushrod can compromise valve timing and throttle response, directly impacting engine performance and reliability. This complete four-pushrod kit eliminates the need to source individual components, ensuring proper OEM fitment and...DS192506- SKU:
- DS192506
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PUSHROD KIT
$66.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-153
EASTERN MOTORCYCLE PARTS
$66.95Push rods are critical to your engine's valve train, transmitting precise motion from lifters to rocker arms with zero tolerance for deflection or wear. A quality push rod kit ensures consistent valve timing and prevents the catastrophic failures that...DS192507- SKU:
- DS192507
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- PUSHROD KIT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$66.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-154
EASTERN MOTORCYCLE PARTS
$66.95A worn or damaged push rod kit compromises valve train precision, leading to poor valve timing, reduced power output, and potential engine damage. The Eastern Motorcycle Parts Push Rod Kit J-1-154 restores proper valve actuation with a complete four-rod...DS192508- SKU:
- DS192508
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PUSHROD KIT
- RIDING STYLE:
- STREET
$66.95 -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-157
EASTERN MOTORCYCLE PARTS
$69.95A worn or damaged push rod kit compromises valve timing and reduces engine efficiency across the entire power band. The Eastern Motorcycle Parts J-1-157 ensures precise valve actuation and consistent performance, restoring the responsiveness and...DS192509- SKU:
- DS192509
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PUSHROD KIT
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-158
EASTERN MOTORCYCLE PARTS
$69.95A high-performance engine demands precision valve actuation, and worn or substandard pushrods compromise both reliability and power delivery. The Eastern Motorcycle Parts Push Rod Kit J-1-158 restores critical valve timing accuracy with a complete...DS192510- SKU:
- DS192510
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- PUSHROD KIT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$69.95
