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 4-Speed Mainshaft Component 201090
ANDREWS
$213.95The ANDREWS 4-Speed Mainshaft Component 201090 is essential for builders and rebuilders looking to restore or upgrade transmission durability in high-revving applications. This precision-engineered mainshaft handles the demanding load transfers of a...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: -
ANDREWS Belt Pulley - 34-Tooth - '07-'17 290346
ANDREWS
$217.95A properly sized primary pulley is critical for optimizing your belt drive system's efficiency and ensuring reliable power transfer across your entire RPM range. The ANDREWS 34-Tooth Belt Pulley delivers the precision machining and durability required...12010226- SKU:
- 12010226
- Availability:
- Ships Same Business Day
- Weight:
- 6.76 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 34
- MATERIAL:
- STEEL
- MODEL:
- SMOOTH CRUISING
- TYPE:
- BELT DRIVE
$217.95 -
ANDREWS Belt Pulley - 30-Tooth - '07-'17 290306
ANDREWS
$211.95A properly sized pulley is fundamental to maximizing your belt drive efficiency and maintaining precise power delivery across your entire drivetrain. The ANDREWS 30-tooth pulley delivers the gear ratio adjustments serious builders need when fine-tuning...12010227- SKU:
- 12010227
- Availability:
- Ships Same Business Day
- Weight:
- 5.39 LBS
- MATERIAL:
- STEEL
- MODEL:
- SMOOTH CRUISING
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 30
- TYPE:
- BELT DRIVE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$211.95 -
ANDREWS Belt Pulley - 31-Tooth - '94-'06 290314
ANDREWS
$211.95The ANDREWS 31-tooth belt pulley delivers the precise gear ratio adjustments serious builders need for optimized engine performance and belt drive reliability. Whether you're fine-tuning top-end power or dialing in cruising characteristics, this...12010583- SKU:
- 12010583
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 31
- TYPE:
- BELT DRIVE
- MATERIAL:
- STEEL
- MODEL:
- GOOD ACCELERATION
- UNITS:
- EACH
$211.95Qty in Cart: 0Quantity:Price:$211.95Subtotal: -
ANDREWS Belt Pulley - 31-Tooth - '07-'17 290316
ANDREWS
$211.95The ANDREWS 31-Tooth Belt Pulley is engineered for riders running '07-'17 Harley-Davidson models who demand precise belt drive geometry and reliable power transfer. Machined from heat-treated, gear-quality steel and manufactured in the U.S.A., this...12010584- SKU:
- 12010584
- Availability:
- Ships Same Business Day
- Weight:
- 6.64 LBS
- MODEL:
- GOOD ACCELERATION
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 31
- TYPE:
- BELT DRIVE
- MATERIAL:
- STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
$211.95 -
ANDREWS Belt Pulley - 32-Tooth - '85-'93 290320
ANDREWS
$256.95The ANDREWS 32-Tooth Belt Pulley delivers reliable primary drive engagement for '85-'93 models, engineered from heat-treated, gear-quality steel for lasting durability under high-load conditions. This U.S.-manufactured component ensures consistent belt...12010585- SKU:
- 12010585
- Availability:
- Ships Same Business Day
- Weight:
- 6.10 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 32
- MATERIAL:
- STEEL
- MODEL:
- STOCK REPLACEMENT
- TYPE:
- BELT DRIVE
- RIDING STYLE:
- STREET
$256.95 -
ANDREWS Belt Pulley - 32-Tooth - '94-06 290324
ANDREWS
$211.95The ANDREWS 32-tooth belt pulley is engineered for riders who demand precision in their primary drive system. A properly sized pulley is critical for optimizing belt tension, maintaining chain-like engagement, and preventing premature wear on your entire...12010586- SKU:
- 12010586
- Availability:
- Ships Same Business Day
- Weight:
- 6.35 LBS
- TYPE:
- BELT DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 32
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- MODEL:
- STOCK REPLACEMENT
$211.95 -
ANDREWS Belt Pulley - 32-Tooth - '07-'17 290326
ANDREWS
$211.95The ANDREWS 32-Tooth Belt Pulley delivers precise gear ratio control for '07-'17 models, allowing you to dial in your final drive characteristics for either top-end speed or launch acceleration. Built from heat-treated, gear-quality steel and...12010587- SKU:
- 12010587
- Availability:
- Ships Same Business Day
- Weight:
- 6.72 LBS
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MODEL:
- STOCK REPLACEMENT
- TOOTH COUNT:
- 32
- PRODUCT NAME:
- PULLEY
- TYPE:
- BELT DRIVE
- RIDING STYLE:
- STREET
$211.95Qty in Cart: 0Quantity:Price:$211.95Subtotal: -
ANDREWS Belt Pulley - 33-Tooth - '94-'06 290334
ANDREWS
$217.95The ANDREWS 33-Tooth Belt Pulley is engineered for riders who demand precise primary drive control and reliable power transfer in high-performance applications. This gear-quality steel component ensures consistent engagement and minimal wear, making it...12010589- SKU:
- 12010589
- Availability:
- Ships Same Business Day
- Weight:
- 6.90 LBS
- MATERIAL:
- STEEL
- TOOTH COUNT:
- 33
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MODEL:
- OVERDRIVE
- PRODUCT NAME:
- PULLEY
- TYPE:
- BELT DRIVE
$217.95 -
ANDREWS Belt Pulley - 31-Tooth - '17-'20 290318
ANDREWS
$217.95The ANDREWS 31-Tooth Belt Pulley is engineered for riders who demand precise power delivery and reliable belt drive performance. This U.S.-manufactured component reduces engine RPM at cruising speeds, lowering heat and extending drivetrain longevity...12010857- SKU:
- 12010857
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 31
- TYPE:
- BELT DRIVE
$217.95 -
ANDREWS Belt Pulley - 34 Tooth 290348
ANDREWS
$217.95The ANDREWS 34-tooth belt pulley delivers the precise diameter control you need for optimal belt tension and drive system efficiency. Whether you're fine-tuning a primary drive or replacing a worn pulley, this U.S.-made component provides the durability...12010859- SKU:
- 12010859
- Availability:
- Ships Same Business Day
- Weight:
- 5.55 LBS
- RIDING STYLE:
- STREET
- TYPE:
- BELT DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 34
$217.95 -
ANDREWS 4-Speed Mainshaft 208800
ANDREWS
$284.95The ANDREWS 4-Speed Mainshaft 208800 is engineered for demanding applications where gear reliability and precise power transfer are non-negotiable. Whether you're rebuilding a transmission for consistent track duty or restoring a vintage powertrain, this...11060057- SKU:
- 11060057
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
- PRODUCT NAME:
- MAINSHAFT
- RIDING STYLE:
- STREET
$284.95 -
ANDREWS 4-Speed Countershaft 207800
ANDREWS
$54.95The Andrews 4-Speed Countershaft 207800 is engineered for builders who demand reliable, repeatable performance in high-revving applications. This precision-manufactured countershaft provides the durability needed for consistent acceleration and power...DS199428- SKU:
- DS199428
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION
$54.95 -
ANDREWS Belt Pulley - 33-Tooth - '85-'93 290330
ANDREWS
$261.95A properly sized belt pulley is critical for maintaining precise belt tension and ensuring consistent power delivery in your final drive system. The ANDREWS 33-Tooth pulley gives you the gear ratio adjustment needed to dial in your bike's acceleration...12010588- SKU:
- 12010588
- Availability:
- Ships Same Business Day
- Weight:
- 7.44 LBS
- TOOTH COUNT:
- 33
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MODEL:
- OVERDRIVE
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TYPE:
- BELT DRIVE
$261.95 -
ALLOY ART Cush Drive Sprocket - Black - 53 Tooth G2CC53-11
ALLOY ART
$799.95A cush drive sprocket absorbs drivetrain shock and reduces wear on your primary chain and transmission components—essential if you're running high horsepower or frequently launching hard. The ALLOY ART G2 features a robust 1026 steel sprocket paired with...12102511- SKU:
- 12102511
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- TYPE:
- CUSH DRIVE
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 53
- UNITS:
- EACH
$799.95 -
EBC Clutch Kit SRK7003
EBC
$349.34If you're pushing your vehicle hard on the street or track, a stock clutch won't cut it. The EBC Clutch Kit SRK7003 delivers the holding power and durability you need to handle aggressive driving without slipping or premature wear. Built for drivers who...11313270- SKU:
- 11313270
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- TYPE:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
$349.34 -
EBC Clutch Kit SRK7011
EBC
$343.90A street and track-proven clutch system, the EBC SRK7011 delivers consistent engagement and reliable power transfer whether you're managing daily driving demands or pushing hard on the circuit. Built with aramid fiber-lined friction plates and...11313276- SKU:
- 11313276
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FRICTION PLATE SET
- UNITS:
- KIT
- PRODUCT NAME:
- CLUTCH KIT
$343.90 -
EBC Clutch Kit SRK7012
EBC
$343.90When you're pushing your vehicle to the limit on track or maximizing power delivery on the street, your factory clutch becomes the weak link. The EBC Clutch Kit SRK7012 is engineered to handle sustained high-torque applications without slipping or...11313277- SKU:
- 11313277
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FRICTION PLATE SET
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$343.90 -
EBC Clutch Kit SRK7013
EBC
$343.90If you're pushing your vehicle hard on track or tackling aggressive street driving, a worn or marginal clutch becomes your limiting factor—killing power delivery and threatening catastrophic failure under load. The EBC Clutch Kit SRK7013 delivers the...11313278- SKU:
- 11313278
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- TYPE:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$343.90 -
EBC Clutch Kit SRK7015
EBC
$272.39Whether you're pushing your vehicle to the limit on track or commanding the street with confidence, a worn or inadequate clutch becomes your performance bottleneck. The EBC Clutch Kit SRK7015 delivers the holding power and modulation you need to transfer...11313280- SKU:
- 11313280
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- RIDING STYLE:
- STREET
- TYPE:
- FRICTION PLATE SET
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$272.39
