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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On Sale
EASTERN MOTORCYCLE PARTS Bearing - 36799-91 A-36799-91
EASTERN MOTORCYCLE PARTS
MSRP: $37.95Now: $34.53Was: $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...11320917- SKU:
- 11320917
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH SHELL
- PRODUCT NAME:
- BEARING
MSRP: $37.95Now: $34.53Was: $37.95 -
On Sale
EASTERN MOTORCYCLE PARTS Bearing - 37722-71 A-37722-71
EASTERN MOTORCYCLE PARTS
MSRP: $26.95Now: $24.52Was: $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...11320918- SKU:
- 11320918
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH SPROCKET SHELL
MSRP: $26.95Now: $24.52Was: $26.95Qty in Cart: 0Quantity:Price:MSRP: $26.95Now: $24.52Was: $26.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Clutch Springs A-38075-41
EASTERN MOTORCYCLE PARTS
MSRP: $24.95Now: $22.70Was: $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...11311808- SKU:
- 11311808
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING
- UNITS:
- 10 PACK
MSRP: $24.95Now: $22.70Was: $24.95 -
On Sale
EASTERN MOTORCYCLE PARTS Clutch Springs A-38080-SET
EASTERN MOTORCYCLE PARTS
MSRP: $26.95Now: $24.52Was: $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...11311809- SKU:
- 11311809
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- PRODUCT NAME:
- SPRING SET
- TYPE:
- CLUTCH RELEASE
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
MSRP: $26.95Now: $24.52Was: $26.95 -
On Sale
EASTERN MOTORCYCLE PARTS Sprocket Rivet And Dowel J-1-120
EASTERN MOTORCYCLE PARTS
MSRP: $10.95Now: $9.96Was: $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...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
MSRP: $10.95Now: $9.96Was: $10.95 -
On Sale
EASTERN MOTORCYCLE PARTS Bearing - Clutch Shell A-36799-84
EASTERN MOTORCYCLE PARTS
MSRP: $31.95Now: $29.07Was: $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...11320652- SKU:
- 11320652
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- BEARING
- TYPE:
- CLUTCH SHELL
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $31.95Now: $29.07Was: $31.95Qty in Cart: 0Quantity:Price:MSRP: $31.95Now: $29.07Was: $31.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Clutch Release Bearing - 8885 A-8885
EASTERN MOTORCYCLE PARTS
MSRP: $22.95Now: $20.88Was: $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...11320653- SKU:
- 11320653
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH RELEASE
- PRODUCT NAME:
- BEARING
MSRP: $22.95Now: $20.88Was: $22.95Qty in Cart: 0Quantity:Price:MSRP: $22.95Now: $20.88Was: $22.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Inner Clutch Hub - 37554-06A A-37554-06
EASTERN MOTORCYCLE PARTS
MSRP: $172.95Now: $157.38Was: $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...11320978- SKU:
- 11320978
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- INNER
- PRODUCT NAME:
- CLUTCH HUB
MSRP: $172.95Now: $157.38Was: $172.95Qty in Cart: 0Quantity:Price:MSRP: $172.95Now: $157.38Was: $172.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Bearings - 8860 - 25 Pack A-8860
EASTERN MOTORCYCLE PARTS
Now: $9.74Was: $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...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
Now: $9.74Was: $10.70 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Bearing A-37310-39
EASTERN MOTORCYCLE PARTS
MSRP: $112.95Now: $102.78Was: $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...DS192500- SKU:
- DS192500
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH RELEASE
- PRODUCT NAME:
- BEARING
- UNITS:
- KIT
MSRP: $112.95Now: $102.78Was: $112.95Qty in Cart: 0Quantity:Price:MSRP: $112.95Now: $102.78Was: $112.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit A-37279-80
EASTERN MOTORCYCLE PARTS
MSRP: $41.95Now: $38.17Was: $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...DS192501- SKU:
- DS192501
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
MSRP: $41.95Now: $38.17Was: $41.95 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Bearing A-37312-KIT
EASTERN MOTORCYCLE PARTS
MSRP: $17.95Now: $16.33Was: $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...DS192502- SKU:
- DS192502
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING KIT
- UNITS:
- KIT
- TYPE:
- CLUTCH PUSHROD
MSRP: $17.95Now: $16.33Was: $17.95Qty in Cart: 0Quantity:Price:MSRP: $17.95Now: $16.33Was: $17.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-149
EASTERN MOTORCYCLE PARTS
MSRP: $66.95Now: $60.92Was: $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...DS192503- SKU:
- DS192503
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
MSRP: $66.95Now: $60.92Was: $66.95 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-150
EASTERN MOTORCYCLE PARTS
MSRP: $66.95Now: $60.92Was: $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...DS192504- SKU:
- DS192504
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
MSRP: $66.95Now: $60.92Was: $66.95 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-151
EASTERN MOTORCYCLE PARTS
MSRP: $66.95Now: $60.92Was: $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...DS192505- SKU:
- DS192505
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- PUSHROD KIT
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
MSRP: $66.95Now: $60.92Was: $66.95 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-152
EASTERN MOTORCYCLE PARTS
MSRP: $66.95Now: $60.92Was: $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...DS192506- SKU:
- DS192506
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PUSHROD KIT
MSRP: $66.95Now: $60.92Was: $66.95 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-153
EASTERN MOTORCYCLE PARTS
MSRP: $66.95Now: $60.92Was: $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...DS192507- SKU:
- DS192507
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- PUSHROD KIT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
MSRP: $66.95Now: $60.92Was: $66.95 -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-154
EASTERN MOTORCYCLE PARTS
MSRP: $66.95Now: $60.92Was: $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...DS192508- SKU:
- DS192508
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PUSHROD KIT
- RIDING STYLE:
- STREET
MSRP: $66.95Now: $60.92Was: $66.95Qty in Cart: 0Quantity:Price:MSRP: $66.95Now: $60.92Was: $66.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-157
EASTERN MOTORCYCLE PARTS
MSRP: $69.95Now: $63.65Was: $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...DS192509- SKU:
- DS192509
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- PUSHROD KIT
MSRP: $69.95Now: $63.65Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $63.65Was: $69.95Subtotal: -
On Sale
EASTERN MOTORCYCLE PARTS Push Rod Kit J-1-158
EASTERN MOTORCYCLE PARTS
MSRP: $69.95Now: $63.65Was: $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...DS192510- SKU:
- DS192510
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- PUSHROD KIT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
MSRP: $69.95Now: $63.65Was: $69.95Qty in Cart: 0Quantity:Price:MSRP: $69.95Now: $63.65Was: $69.95Subtotal:
