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!
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On Sale
Belt Drives Ltd Rear Drive Belt 137 Tooth 1 inch Harley-Davidson 2007-2020 PCC-137-1
BELT DRIVES LTD.
MSRP: $285.95Now: $257.36Was: $285.95Experience unmatched performance with the BELT DRIVES LTD. Rear Drive Belt, expertly crafted from Gates carbon X3N material, renowned for its durability and reliability. Designed to meet the high standards of Harley-Davidson since 1980, this belt ensures...11200407- SKU:
- 11200407
- Availability:
- Ships Same Business Day
- Weight:
- 1.84 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 137
- UNITS:
- EACH
- MATERIAL:
- X7N CARBON
- PRODUCT NAME:
- BELT
- TYPE:
- REAR DRIVE
- WIDTH IMPERIAL:
- 1'
MSRP: $285.95Now: $257.36Was: $285.95 -
On Sale
Belt Drives Ltd 1-5/8" Belt Drive for 1990-2006 Harley-Davidson Softail and Dyna EVBB-2SL
BELT DRIVES LTD.
MSRP: $1,116.95Now: $1,005.26Was: $1,116.95Experience unparalleled performance with the Belt Drives Ltd. 1-5/8" Belt Drive EVBB-2SL. This comprehensive kit features everything you need for a seamless installation, ensuring optimal power transfer and reliability. Crafted with precision in the U.S...11200247- SKU:
- 11200247
- Availability:
- Ships Same Business Day
- Weight:
- 16.00 LBS
- MATERIAL:
- KEVLAR
- WIDTH IMPERIAL:
- 1-5/8'
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- STEEL
MSRP: $1,116.95Now: $1,005.26Was: $1,116.95 -
On Sale
Belt Drives Ltd High Performance Extra Clutch Plate Kit 1990-1997 Harley Davidson BTXP-12
BELT DRIVES LTD.
MSRP: $257.95Now: $232.16Was: $257.95Enhance your clutch performance with the Belt Drives Ltd. Extra Plate Kit BTXP-12, designed specifically for big-bore models. This kit offers a significant increase in surface area for improved clutch engagement, ensuring a smoother and more reliable...11311804- SKU:
- 11311804
- Availability:
- Ships Same Business Day
- Weight:
- 2.48 LBS
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- KEVLAR
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- FRICTION PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- PLATE SET
- UNITS:
- SET OF 8
MSRP: $257.95Now: $232.16Was: $257.95 -
On Sale
Belt Drives Ltd High-Performance Clutch Plate Kit for 1998-2017 Harley-Davidson Road King FLHR BTXP-14
BELT DRIVES LTD.
MSRP: $333.95Now: $300.56Was: $333.95Enhance your clutch performance with the BELT DRIVES LTD. Extra Plate Kit BTXP-14, designed specifically for big-bore models. This kit offers increased surface area for superior clutch engagement, ensuring a smoother ride and improved power transfer...11311806- SKU:
- 11311806
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- FRICTION PLATE MATERIAL:
- 6061 T-6 ALUMINUM
- PRODUCT NAME:
- PLATE SET
- RIDING STYLE:
- STREET
- FRICTION PLATE MATERIAL:
- KEVLAR
- TYPE:
- CLUTCH
- UNITS:
- SET OF 9
- DRIVE PLATE MATERIAL:
- STEEL
MSRP: $333.95Now: $300.56Was: $333.95 -
On Sale
Belt Drives Ltd Offset Spacer 1-1/2" for Harley-Davidson 1994-2006 FLHR Road King IN-1500
BELT DRIVES LTD.
MSRP: $103.95Now: $93.56Was: $103.95This high-quality offset spacer is designed to facilitate precise alignment of your motor pulley, ensuring optimal belt performance. Crafted in the U.S.A., it comes complete with a motor sprocket nut and mounting screws, making installation...20175002- SKU:
- 20175002
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- TYPE:
- PULLEY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- SPACER INSERT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $103.95Now: $93.56Was: $103.95 -
On Sale
Belt Drives Ltd Big Fix Bearing 1936-1984 Big Twin BF-1
BELT DRIVES LTD.
MSRP: $43.95Now: $39.56Was: $43.95Enhance your clutch performance with the Belt Drives Ltd. Big Fix Bearing, designed to replace outdated caged roller bearings. This comprehensive kit includes everything you need for a smoother, firmer clutch operation, ensuring a reliable ride every...DS360172- SKU:
- DS360172
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING KIT
- UNITS:
- KIT
- TYPE:
- CLUTCH
MSRP: $43.95Now: $39.56Was: $43.95 -
On Sale
Belt Drives Ltd Clutch Hub for Top Fuel 1990-2006 Softail TFCH-180
BELT DRIVES LTD.
MSRP: $255.95Now: $230.36Was: $255.95Experience unmatched performance with the BELT DRIVES LTD. Clutch Hub, expertly crafted from high-grade aluminum and hard anodized for enhanced durability. Proudly made in the U.S.A., this component is designed to meet the rigorous demands of top fuel...11200035- SKU:
- 11200035
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- COLOR/FINISH:
- ANODIZED
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 3-3/8'
- PRODUCT NAME:
- CLUTCH HUB
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $255.95Now: $230.36Was: $255.95 -
On Sale
Belt Drives Ltd Replacement Primary Drive Belt for Harley-Davidson FL 1200 1970-1977 BDL-30853 ST
BELT DRIVES LTD.
MSRP: $85.95Now: $77.36Was: $85.95The BDL-30853 ST Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drive systems. This durable and reliable belt ensures smooth operation and longevity, making it an essential component for maintaining your...DS360007- SKU:
- DS360007
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- TOOTH COUNT:
- 132
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- STYLE:
- RIBBED
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $85.95Now: $77.36Was: $85.95 -
On Sale
Belt Drives Ltd 144 Tooth 8mm x 3in Primary Drive Belt BDL-37144-3
BELT DRIVES LTD.
MSRP: $185.95Now: $167.36Was: $185.95Enhance the performance of your BDL primary drives with the Replacement Belt BDL-37144-3. Engineered for durability and efficiency, this belt ensures smooth operation and optimal power transfer. Trust in its quality to keep your machinery running at peak...DS360014- SKU:
- DS360014
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 144
- TYPE:
- PRIMARY
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 3'
- STYLE:
- RIBBED
- UNITS:
- EACH
MSRP: $185.95Now: $167.36Was: $185.95 -
BURLY BRAND Light Clutch Kit B17-115
BURLY BRAND
$52.9540% easier clutch pull; less fatigue with smooth clutch action, Simple installation, Will not fit FXR, FXRS, FXRS-SP, FXRT or FXLR models.DS223005- SKU:
- DS223005
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- MODEL:
- EASYBOY LITE
- UNITS:
- EACH
- PRODUCT NAME:
- CLUTCH KIT
$52.95 -
BURLY BRAND Light Clutch Kit B17-116
BURLY BRAND
$58.9540% easier clutch pull; less fatigue with smooth clutch action, Simple installation, Will not fit FXR, FXRS, FXRS-SP, FXRT or FXLR models.DS223006- SKU:
- DS223006
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- MODEL:
- EASYBOY LITE
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- EACH
$58.95 -
BURLY BRAND Light Clutch Kit B17-117
BURLY BRAND
$45.9540% easier clutch pull; less fatigue with smooth clutch action, Simple installation, Will not fit FXR, FXRS, FXRS-SP, FXRT or FXLR models.11300183- SKU:
- 11300183
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- MODEL:
- EASYBOY LITE
- PRODUCT NAME:
- CLUTCH KIT
$45.95 -
On Sale
ARLEN NESS Transmission Side Cover - Chrome - Cable 03-812
ARLEN NESS
MSRP: $179.95Now: $163.75Was: $179.95Carved from 6061 T-6 billet aluminum, Replaces OEM cover, Includes necessary gaskets and hardware11050107- SKU:
- 11050107
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- MOUNTING STYLE:
- 6 HOLE
- STYLE:
- 10 GAUGE
- TYPE:
- TRANSMISSION
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- PRODUCT NAME:
- SIDE COVER
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
MSRP: $179.95Now: $163.75Was: $179.95 -
On Sale
ARLEN NESS Black 10 Gauge Top Transmission Cover 03-853
ARLEN NESS
MSRP: $179.95Now: $163.75Was: $179.95Machined from billet aluminum, Includes necessary gasket and hardware11050112- SKU:
- 11050112
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- 10 GAUGE
- MOUNTING STYLE:
- 6 HOLE
- PRODUCT NAME:
- TOP COVER
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $179.95Now: $163.75Was: $179.95 -
On Sale
ARLEN NESS Transmission Cover - Black 03-854
ARLEN NESS
MSRP: $179.95Now: $163.75Was: $179.95Replaces OEM transmission side cover, Includes necessary gaskets and hardware11050246- SKU:
- 11050246
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- UNITS:
- EACH
- MOUNTING STYLE:
- 6 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- 10 GAUGE
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK ANODIZED
- MATERIAL:
- 6061 T-6 ALUMINUM
- TYPE:
- TRANSMISSION
MSRP: $179.95Now: $163.75Was: $179.95 -
On Sale
ARLEN NESS Transmission Cover - Black 03-864
ARLEN NESS
MSRP: $209.95Now: $191.05Was: $209.95Replaces OEM transmission side cover, Includes necessary gaskets and hardware11050248- SKU:
- 11050248
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MATERIAL:
- 6061 T-6 ALUMINUM
- STYLE:
- 10 GAUGE
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK ANODIZED
- MOUNTING STYLE:
- 6 HOLE
- RIDING STYLE:
- STREET
MSRP: $209.95Now: $191.05Was: $209.95 -
On Sale
ARLEN NESS Derby Cover 700-006
ARLEN NESS
MSRP: $169.95Now: $154.65Was: $169.95Machined from 6061-T6 billet aluminum, Chrome hardware and gasket included, Matching point and inspection covers available separately, Sold each11070651- SKU:
- 11070651
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- 10 GAUGE
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RED ANODIZED
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
MSRP: $169.95Now: $154.65Was: $169.95 -
On Sale
ARLEN NESS Derby Cover 700-007
ARLEN NESS
MSRP: $169.95Now: $154.65Was: $169.95Machined from 6061-T6 billet aluminum, Chrome hardware and gasket included, Matching point and inspection covers available separately, Sold each11070652- SKU:
- 11070652
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- TITANIUM ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- 10 GAUGE
- MOUNTING STYLE:
- 5 HOLE
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $169.95Now: $154.65Was: $169.95 -
On Sale
ARLEN NESS Derby Cover 700-019
ARLEN NESS
MSRP: $169.95Now: $154.65Was: $169.95Machined from 6061-T6 billet aluminum, Chrome hardware and gasket included, Matching point and inspection covers available separately, Sold each11070654- SKU:
- 11070654
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- COLOR/FINISH:
- BLUE ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- STYLE:
- 10 GAUGE
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $169.95Now: $154.65Was: $169.95 -
On Sale
ARLEN NESS Derby Cover 700-021
ARLEN NESS
MSRP: $169.95Now: $154.65Was: $169.95Machined from 6061-T6 billet aluminum, Chrome hardware and gasket included, Matching point and inspection covers available separately, Sold each11070656- SKU:
- 11070656
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE ANODIZED
- STYLE:
- 10 GAUGE
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
MSRP: $169.95Now: $154.65Was: $169.95
