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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ALTO PRODUCTS Steel Plate Set with Anti-Rattler - Big Twin '68-Early '84 095753AD
ALTO PRODUCTS
$63.95Precision-made with anti-rattler11310481- SKU:
- 11310481
- Availability:
- Ships Same Business Day
- Weight:
- 3.09 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PLATE SET
- TYPE:
- CLUTCH
- UNITS:
- SET OF 4
$63.95Qty in Cart: 0Quantity:Price:$63.95Subtotal: -
ALTO PRODUCTS Steel Plate Set 095753D
ALTO PRODUCTS
$39.95Precision-made11310484- SKU:
- 11310484
- Availability:
- Ships Same Business Day
- Weight:
- 3.02 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- PLATE SET
- TYPE:
- CLUTCH
- UNITS:
- SET OF 4
$39.95Qty in Cart: 0Quantity:Price:$39.95Subtotal: -
ALTO PRODUCTS Steel Plate Set 095753M
ALTO PRODUCTS
$56.95Precision-made11310486- SKU:
- 11310486
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- PLATE SET
- TYPE:
- CLUTCH
- UNITS:
- SET OF 7
$56.95 -
ALTO PRODUCTS Steel Plate Set 095753N
ALTO PRODUCTS
$67.95Precision-made11310487- SKU:
- 11310487
- Availability:
- Ships Same Business Day
- Weight:
- 1.37 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- UNITS:
- SET OF 8
- PRODUCT NAME:
- PLATE SET
- TYPE:
- CLUTCH
$67.95Qty in Cart: 0Quantity:Price:$67.95Subtotal: -
ALTO PRODUCTS Steel Plate - Standard - Big Twin '41-Early '84 095761-290UP1
ALTO PRODUCTS
$10.95Precision-made clutch plate11310488- SKU:
- 11310488
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- PRODUCT NAME:
- CLUTCH PLATE
- UNITS:
- EACH
- STYLE:
- STANDARD
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
ALTO PRODUCTS Steel Plate with Anti Rattler 095753K
ALTO PRODUCTS
$18.95Individual steel clutch plate with anti-rattler11310489- SKU:
- 11310489
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH PLATE
$18.95 -
ALTO PRODUCTS Steel Plate - Small Lug - Big Twin '41-Early '84 095761B290UP1
ALTO PRODUCTS
$11.95Precision-made clutch plate11310490- SKU:
- 11310490
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH PLATE
- STYLE:
- SMALL LUG
- UNITS:
- EACH
$11.95Qty in Cart: 0Quantity:Price:$11.95Subtotal: -
ANDREWS Mainshaft - 2nd Gear 252020
ANDREWS
$135.95Sold individually, unless noted.DS199431- SKU:
- DS199431
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- STYLE:
- STANDARD RATIO
- TYPE:
- SECOND GEAR
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$135.95 -
ANDREWS Countershaft - 3rd Gear 253030
ANDREWS
$133.95Sold individually, unless noted.DS199432- SKU:
- DS199432
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 23
- TYPE:
- THIRD GEAR
- PRODUCT NAME:
- COUNTERSHAFT
- STYLE:
- STANDARD RATIO
- UNITS:
- EACH
$133.95 -
ANDREWS Mainshaft - 3rd Gear 253050
ANDREWS
$133.95Sold individually, unless noted.DS199433- SKU:
- DS199433
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GEAR
- TYPE:
- THIRD GEAR
- UNITS:
- EACH
- STYLE:
- STANDARD RATIO
$133.95 -
ANDREWS Mainshaft - 1st Gear 251050
ANDREWS
$102.95Sold individually, unless noted.DS199434- SKU:
- DS199434
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- TYPE:
- FIRST GEAR
- PRODUCT NAME:
- GEAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD RATIO
$102.95 -
ANDREWS Countershaft - 1st Gear 251060
ANDREWS
$143.95Sold individually, unless noted.DS199435- SKU:
- DS199435
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FIRST GEAR
- TOOTH COUNT:
- 17
- UNITS:
- EACH
- PRODUCT NAME:
- COUNTERSHAFT
- STYLE:
- STANDARD RATIO
$143.95 -
ANDREWS Close-Ratio Gear Set 254850
ANDREWS
$422.95Sold individually, unless noted.DS199436- SKU:
- DS199436
- Availability:
- Ships Same Business Day
- Weight:
- 2.26 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- STYLE:
- CLOSE RATIO
- TYPE:
- CLOSE RATIO
$422.95 -
ANDREWS Stock Ratio Clutch Gear 254710
ANDREWS
$302.95Sold individually, unless noted.DS199440- SKU:
- DS199440
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- CLUTCH GEAR
- TYPE:
- STOCK RATIO
- STYLE:
- STANDARD RATIO
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$302.95 -
ANDREWS Countershaft Gear - 2nd/3rd Gear 296220
ANDREWS
$95.95Sold individually, unless noted.DS199450- SKU:
- DS199450
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- GEAR
- TYPE:
- THIRD GEAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 23
- STYLE:
- STANDARD RATIO
- TYPE:
- SECOND GEAR
$95.95 -
ANDREWS Countershaft Gear - 2nd/3rd Gear 296330
ANDREWS
$154.95Sold individually, unless noted.DS199451- SKU:
- DS199451
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PRODUCT NAME:
- GEAR
- TRANSMISSION TYPE:
- 5 SPEED
- TYPE:
- SECOND GEAR
- TYPE:
- THIRD GEAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 27
- UNITS:
- EACH
- STYLE:
- STANDARD RATIO
$154.95 -
ANDREWS Main Drive Gear with Chain Drive 296550
ANDREWS
$288.95Sold individually, unless noted.DS199452- SKU:
- DS199452
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- PRODUCT NAME:
- GEAR
- TYPE:
- MAIN DRIVE
- RIDING STYLE:
- STREET
- STYLE:
- CHAIN DRIVE
- STYLE:
- STANDARD RATIO
- TOOTH COUNT:
- 32
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- UNITS:
- EACH
$288.95 -
ANDREWS Countershaft Gear - 5th Gear 296555
ANDREWS
$58.95Sold individually, unless noted.DS199453- SKU:
- DS199453
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- TOOTH COUNT:
- 17
- TYPE:
- FIFTH GEAR
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD RATIO
- PRODUCT NAME:
- GEAR
- UNITS:
- EACH
- TRANSMISSION TYPE:
- 5 SPEED
$58.95 -
ANDREWS Main Drive Gear with Belt Drive 296585
ANDREWS
$288.95Sold individually, unless noted.DS199454- SKU:
- DS199454
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- STYLE:
- STANDARD RATIO
- TOOTH COUNT:
- 32
- TYPE:
- MAIN DRIVE
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- STYLE:
- BELT DRIVE
$288.95 -
ANDREWS 4-Speed Mainshaft Component 201090
ANDREWS
$213.95Sold individually, unless noted.11030017- SKU:
- 11030017
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD RATIO
- UNITS:
- SET
- PRODUCT NAME:
- GEAR SET
- TYPE:
- FIRST GEAR
- FIRST GEAR RATIO:
- 3,00:1
$213.95Qty in Cart: 0Quantity:Price:$213.95Subtotal:
