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
-
ANDREWS 5-Speed Mainshaft 299180
ANDREWS
$267.95Sold individually, unless noted.11060068- SKU:
- 11060068
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- RIDING STYLE:
- STREET
- STYLE:
- 5 SPEED
- UNITS:
- EACH
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- MAINSHAFT
$267.95Qty in Cart: 0Quantity:Price:$267.95Subtotal: -
ANDREWS Pulley - 29 Tooth 290294
ANDREWS
$211.95Machined from heat-treated, gear-quality steel, Made in the U.S.A., May require some elongation of axle hole in swingarm or change in belt length to allow for proper belt adjustment.DS199479- SKU:
- DS199479
- Availability:
- Ships Same Business Day
- Weight:
- 4.88 LBS
- MATERIAL:
- STEEL
- TRANSMISSION TYPE:
- 5 SPEED
- TYPE:
- TRANSMISSION
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PULLEY
- MODEL:
- BETTER ACCELERATION
- TOOTH COUNT:
- 29
- UNITS:
- EACH
$211.95Qty in Cart: 0Quantity:Price:$211.95Subtotal: -
ANDREWS 1st Gear Set 296110
ANDREWS
$219.95Sold individually, unless noted.DS199531- SKU:
- DS199531
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- STYLE:
- CLOSE RATIO
- TYPE:
- FIRST GEAR
- FIRST GEAR RATIO:
- 2.94:1
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- UNITS:
- SET
$219.95 -
ANDREWS Transmission Gear - 1st Gear 296120
ANDREWS
$116.95Sold individually, unless noted.11060059- SKU:
- 11060059
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- STYLE:
- STANDARD RATIO
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- FIRST GEAR
- TRANSMISSION TYPE:
- 5 SPEED
- PRODUCT NAME:
- GEAR
- TOOTH COUNT:
- 31
$116.95 -
ANDREWS Mainshaft - 1st Gear 296125
ANDREWS
$116.95Sold individually, unless noted.11060060- SKU:
- 11060060
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- FIRST GEAR RATIO:
- 3.24:1
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- STYLE:
- STANDARD RATIO
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 18
- TYPE:
- FIRST GEAR
- PRODUCT NAME:
- GEAR
$116.95Qty in Cart: 0Quantity:Price:$116.95Subtotal: -
ANDREWS 5-Speed Mainshaft 296800
ANDREWS
$331.95Sold individually, unless noted.11060061- SKU:
- 11060061
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- TYPE:
- TRANSMISSION
- STYLE:
- CHAIN DRIVE
- STYLE:
- 5 SPEED
- PRODUCT NAME:
- MAINSHAFT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$331.95 -
ANDREWS Mainshaft - 3rd Gear 299103
ANDREWS
$129.95Sold individually, unless noted.11060062- SKU:
- 11060062
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- PRODUCT NAME:
- GEAR
- TYPE:
- THIRD GEAR
- UNITS:
- EACH
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 28
- STYLE:
- STANDARD RATIO
$129.95 -
ANDREWS 4th Gear Mainshaft 204280
ANDREWS
$210.95Sold individually, unless noted.DS199409- SKU:
- DS199409
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- STYLE:
- STANDARD RATIO
- UNITS:
- EACH
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- TYPE:
- MAIN DRIVE
$210.95 -
ANDREWS Mainshaft Drive Gear - 5th Gear 299105
ANDREWS
$288.95Sold individually, unless noted.DS199469- SKU:
- DS199469
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- UNITS:
- EACH
- TOOTH COUNT:
- 33
- TYPE:
- MAIN DRIVE
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD RATIO
$288.95 -
ANDREWS Pulley - 30 Tooth 290304
ANDREWS
$211.95Machined from heat-treated, gear-quality steel, Made in the U.S.A., May require some elongation of axle hole in swingarm or change in belt length to allow for proper belt adjustment.DS199477- SKU:
- DS199477
- Availability:
- Ships Same Business Day
- Weight:
- 5.08 LBS
- MATERIAL:
- STEEL
- MODEL:
- GOOD ACCELERATION
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 30
- TRANSMISSION TYPE:
- 5 SPEED
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
$211.95 -
ANDREWS Pulley - 34 Tooth 290344
ANDREWS
$217.95Machined from heat-treated, gear-quality steel, Made in the U.S.A., May require some elongation of axle hole in swingarm or change in belt length to allow for proper belt adjustment.DS199478- SKU:
- DS199478
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 34
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- MODEL:
- SMOOTH CRUISING
- PRODUCT NAME:
- PULLEY
- TRANSMISSION TYPE:
- 5 SPEED
$217.95 -
On Sale
Belt Drives Ltd 96 Tooth 11mm x 1-1/2in Primary Drive Belt BDL-30884
BELT DRIVES LTD.
MSRP: $163.95Now: $147.56Was: $163.95The BDL-30884 Replacement Belt is designed specifically for BDL primary drives, ensuring optimal performance and durability. This high-quality belt offers a reliable solution for maintaining the efficiency of your drive system, providing smooth operation...DS360011- SKU:
- DS360011
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
- STYLE:
- RIBBED
- TOOTH COUNT:
- 96
MSRP: $163.95Now: $147.56Was: $163.95 -
On Sale
Belt Drives Ltd Shoulder Bolts for 3in Belt Drive Electric Start Harley Davidson 1970-2006 ESB-100
BELT DRIVES LTD.
MSRP: $25.95Now: $23.36Was: $25.95Enhance the performance of your BDL Belt Drive clutches with our high-quality Shoulder Bolts. Designed for durability and precision, these bolts ensure a secure fit and reliable operation. Perfect for both professional mechanics and DIY enthusiasts, this...DS360154- SKU:
- DS360154
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- DIAMETER:
- 9,5 MM (3/8')
- LENGTH IMPERIAL:
- 1-1/2'
- LENGTH:
- 38,1 MM (1-1/2')
- PRODUCT NAME:
- SHOULDER BOLT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- 6 PACK
MSRP: $25.95Now: $23.36Was: $25.95Qty in Cart: 0Quantity:Price:MSRP: $25.95Now: $23.36Was: $25.95Subtotal: -
On Sale
Belt Drives Ltd 30 Tooth Transmission Pulley for 1991-2003 Harley-Davidson Sportster and Buell Models TPS-30
BELT DRIVES LTD.
MSRP: $202.95Now: $182.66Was: $202.95Upgrade your ride with the BELT DRIVES LTD. Transmission Pulley TP-30, crafted from lightweight 6061 T-6 aluminum and treated with a hard anodized finish for enhanced durability. This pulley is engineered to reduce weight while maintaining performance,...DS360165- SKU:
- DS360165
- Availability:
- Ships Same Business Day
- Weight:
- 2.69 LBS
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 30
MSRP: $202.95Now: $182.66Was: $202.95Qty in Cart: 0Quantity:Price:MSRP: $202.95Now: $182.66Was: $202.95Subtotal: -
On Sale
Belt Drives Ltd Clutch Basket 4-Speed 1970-1983 Shovelhead EV-460
BELT DRIVES LTD.
MSRP: $338.95Now: $305.06Was: $338.95Experience enhanced performance with the BELT DRIVES LTD. Clutch Basket, expertly crafted from high-quality aluminum and finished with a hard anodized coating. Proudly made in the U.S.A., this clutch basket is designed to deliver durability and precision...DS360412- SKU:
- DS360412
- Availability:
- Ships Same Business Day
- Weight:
- 10.65 LBS
- NUMBER OF TEETH:
- 68
- PRODUCT NAME:
- CLUTCH BASKET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $338.95Now: $305.06Was: $338.95 -
On Sale
Belt Drives Ltd 8mm 144 Tooth Primary Belt for 1955-1984 Harley-Davidson FL Models BDL-37144-1
BELT DRIVES LTD.
MSRP: $93.95Now: $84.56Was: $93.95The BDL-37144-1 Replacement Belt is expertly designed for BDL primary drives, ensuring optimal performance and durability. This high-quality belt guarantees a smooth operation, making it an essential component for maintaining the efficiency of your...DS360012- SKU:
- DS360012
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- STYLE:
- RIBBED
- TOOTH COUNT:
- 144
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $93.95Now: $84.56Was: $93.95 -
On Sale
Belt Drives Ltd Replacement Primary Belt 144 Tooth 2 Inch Wide for Harley-Davidson FL 1955-1964 BDL-37144-2
BELT DRIVES LTD.
MSRP: $118.95Now: $107.06Was: $118.95Enhance the performance of your BDL primary drive with the BDL-37144-2 replacement belt. Engineered for durability and efficiency, this belt ensures smooth operation and reliable power transfer for your machinery. Upgrade your system with this...DS360013- SKU:
- DS360013
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 144
- WIDTH IMPERIAL:
- 2'
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- STYLE:
- RIBBED
MSRP: $118.95Now: $107.06Was: $118.95 -
On Sale
Belt Drives Ltd 78 Tooth 14mm Primary Drive Belt for Harley-Davidson FL 1946-1952 BDL-38078
BELT DRIVES LTD.
MSRP: $236.95Now: $213.26Was: $236.95Enhance the performance of your BDL primary drives with the high-quality Replacement Belt BDL-38078. Designed for durability and efficiency, this belt ensures smooth operation and reliable power transfer, making it an essential component for optimal...DS360015- SKU:
- DS360015
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- STYLE:
- RIBBED
- TOOTH COUNT:
- 78
- TYPE:
- PRIMARY
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $236.95Now: $213.26Was: $236.95 -
On Sale
Belt Drives Ltd 11mm Belt Drive Kit for 1955-1964 Harley-Davidson FLH 47-31SK-2
BELT DRIVES LTD.
MSRP: $585.95Now: $527.36Was: $585.95Upgrade your classic ride with our top-of-the-line 11mm Belt Drive Kick Start Spline Shaft, designed specifically for models from 1955 to 1964. Crafted from hard anodized aluminum, this durable component ensures longevity and ease of maintenance, making...DS360108- SKU:
- DS360108
- Availability:
- Ships Same Business Day
- Weight:
- 8.90 LBS
- PRODUCT NAME:
- BELT DRIVE KIT
- COLOR/FINISH:
- ANODIZED
- UNITS:
- KIT
- WIDTH IMPERIAL:
- 1-1/2'
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $585.95Now: $527.36Was: $585.95 -
On Sale
Belt Drives Ltd 8mm 2in Primary Belt Drive Kit for 1955-1984 Harley-Davidson Kick Start Models 76-47-2S
BELT DRIVES LTD.
MSRP: $651.95Now: $586.76Was: $651.95Upgrade your motorcycle with the BELT DRIVES LTD. 8mm/2" Primary Belt Drive Kick Start Spline Shaft, designed for exceptional durability and performance. This kit includes everything you need for a seamless installation, ensuring your ride operates...DS360115- SKU:
- DS360115
- Availability:
- Ships Same Business Day
- Weight:
- 11.25 LBS
- PRODUCT NAME:
- BELT DRIVE KIT
- THICKNESS IMPERIAL:
- 5/16'
- UNITS:
- KIT
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 144
- WIDTH IMPERIAL:
- 2'
MSRP: $651.95Now: $586.76Was: $651.95
