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
-
Jims 6-Speed Transmission Rebuild Kit for Harley Dyna 2006-2017 1067
JIMS
$659.95Revitalize your transmission with the JIMS Transmission Rebuild Kit 1067, designed for both 5-speed and 6-speed transmissions. This comprehensive kit includes everything you need for a complete rebuild, ensuring your transmission operates smoothly and...11040006- SKU:
- 11040006
- Availability:
- Ships Same Business Day
- Weight:
- 3.69 LBS
- UNITS:
- KIT
- TRANSMISSION TYPE:
- 6 SPEED
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$659.95 -
Jims 6-Speed Transmission Rebuild Kit for 1991-2005 Harley-Davidson Softail Models 1062
JIMS
$363.95Revitalize your motorcycle's performance with the JIMS Transmission Rebuild Kit 1062. This comprehensive kit is designed to provide everything you need for a complete rebuild of your 5- or 6-speed transmission, ensuring optimal functionality and...11040010- SKU:
- 11040010
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- TRANSMISSION TYPE:
- 6 SPEED
- UNITS:
- KIT
$363.95 -
Jims Transmission Rebuild Kit for 1971-1975 Harley-Davidson FX Super Glide 33031-36
JIMS
$451.95Revitalize your transmission with the JIMS Transmission Rebuild Kit 33031-36, designed for performance and reliability. This comprehensive kit includes high-quality components that ensure your transmission operates smoothly and efficiently. Manufactured...11040011- SKU:
- 11040011
- Availability:
- Ships Same Business Day
- Weight:
- 2.43 LBS
- PRODUCT NAME:
- REBUILD KIT
- TRANSMISSION TYPE:
- 4 SPEED
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$451.95 -
JIMS 6-Speed Transmission Door Black 2007-2016 Harley-Davidson FLHX 2336
JIMS
$467.95Experience superior performance with the JIMS 6-Speed Transmission Door, expertly crafted to enhance shifting precision and maintain optimal shaft alignment. Made from high-quality 6061 precision machined aluminum, this transmission door is designed for...11070357- SKU:
- 11070357
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- TYPE:
- TRANSMISSION
- UNITS:
- KIT
- MATERIAL:
- 6061 ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 8 HOLE
- PRODUCT NAME:
- TRAP DOOR
- TRANSMISSION TYPE:
- 6-SPEED
$467.95 -
Jims 5-Speed Transmission Rebuild Kit 1999-2006 FLH 1035
JIMS
$440.95Revitalize your motorcycle's performance with the JIMS Transmission Rebuild Kit 1035. This comprehensive kit provides everything you need for a complete overhaul of your 5- or 6-speed transmission, ensuring smooth operation and longevity. Crafted in the...11040004- SKU:
- 11040004
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TRANSMISSION TYPE:
- 5 SPEED
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
$440.95 -
Jims 6-Speed Transmission Rebuild Kit for Harley-Davidson Touring Models 2007-2016 1056
JIMS
$659.95Revitalize your 5- or 6-speed transmission with the JIMS Transmission Rebuild Kit 1056. Crafted with precision in the U.S.A., this comprehensive kit includes everything you need for a complete overhaul, ensuring optimal performance and longevity. Trust...11040005- SKU:
- 11040005
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- REBUILD KIT
- TRANSMISSION TYPE:
- 6 SPEED
- UNITS:
- KIT
$659.95 -
Jims Transmission Rebuild Kit for 2007-2017 Harley-Davidson Softail Fat Boy 1068
JIMS
$623.95Revitalize your transmission with the JIMS Transmission Rebuild Kit 1068, designed for both 5-speed and 6-speed transmissions. This comprehensive kit includes everything you need for a complete rebuild, ensuring your transmission operates smoothly and...11040007- SKU:
- 11040007
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- TRANSMISSION TYPE:
- 6 SPEED
- UNITS:
- KIT
$623.95 -
Jims 5th Gear Mainshaft with Bearings and Seal for Harley-Davidson FLHR Road King 1994-1995 8296
JIMS
$445.95Upgrade your motorcycle's performance with the JIMS Mainshaft, designed specifically for 5th gear applications. This high-quality component ensures smooth operation and durability, making it an essential choice for any serious rider. Each unit is sold...11060036- SKU:
- 11060036
- Availability:
- Ships Same Business Day
- Weight:
- 2.39 LBS
- FEATURES:
- INCLUDES BEARINGS
- PRODUCT NAME:
- GEAR
- TRANSMISSION TYPE:
- 5 SPEED
- UNITS:
- EACH
- TYPE:
- MAIN DRIVE GEAR
- FEATURES:
- INCLUDES SEAL
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
$445.95 -
Jims Inner Primary Bearing Seal for Harley-Davidson Big Twin 1990-2006 8961
JIMS
$18.95Upgrade your motorcycle's performance with the JIMS Inner Primary Bearing Seal 8961. Designed for durability and precision, this replacement seal ensures a tight fit and prevents oil leaks, keeping your engine running smoothly. Trust in JIMS quality to...11200414- SKU:
- 11200414
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- BEARING KIT
- TYPE:
- INNER PRIMARY
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$18.95 -
Jims Mega Nut for 2007-2017 Harley-Davidson Touring and Softail Models 1733
JIMS
$125.95The JIMS Mega Nut for models '07 to '20 offers unparalleled precision and security for your pulley system. Crafted in the U.S.A., this innovative nut features advanced machining techniques to ensure a perfect fit and reliable performance. Enhance your...12030012- SKU:
- 12030012
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- NUT
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- PULLEY
$125.95 -
Jims 5-Speed Transmission Assembly 1970-1984 Harley-Davidson FLH Electra Glide 8028DS
JIMS
$3,291.95Experience unparalleled performance with the JIMS 5-Speed Transmission Assembly 8028DS, engineered for precision and durability. Each component is meticulously crafted and assembled to ensure superior functionality and longevity, making it an essential...DS325777- SKU:
- DS325777
- Availability:
- Ships Same Business Day
- Weight:
- 35.31 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- TRANSMISSION ASSEMBLY
- RIDING STYLE:
- STREET
- TRANSMISSION TYPE:
- 5 SPEED
- STYLE:
- 4 SPEED CASE
- STYLE:
- STANDARD RATIO
- TYPE:
- TRANSMISSION ASSEMBLY
- STYLE:
- 5 SPEED
- UNITS:
- EACH
$3,291.95Qty in Cart: 0Quantity:Price:$3,291.95Subtotal: -
Jims 5-Speed Transmission Assembly for Harley-Davidson 1970-1984 FLH 8028
JIMS
$3,291.95Experience unmatched performance and precision with the JIMS 5-Speed Transmission Assembly 8028. Crafted with advanced CNC machining techniques, this assembly is designed to deliver superior strength and reliability for your motorcycle. Each unit is...DS325778- SKU:
- DS325778
- Availability:
- Ships Same Business Day
- Weight:
- 35.44 LBS
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- TRANSMISSION ASSEMBLY
- RIDING STYLE:
- STREET
- STYLE:
- 5 SPEED
- TRANSMISSION TYPE:
- 5 SPEED
- STYLE:
- CLOSE RATIO
- UNITS:
- EACH
- STYLE:
- 4 SPEED CASE
- TYPE:
- TRANSMISSION ASSEMBLY
$3,291.95Qty in Cart: 0Quantity:Price:$3,291.95Subtotal: -
Jims 6-Speed Overdrive Transmission for 1991-1999 Harley-Davidson Softail 8000C6
JIMS
$3,596.95Upgrade your ride with the JIMS 6-Speed Overdrive Transmission, designed for performance and efficiency. This advanced transmission features a close-ratio first gear and a smooth .86:1 overdrive sixth gear, making it ideal for both cruising and spirited...DS325854- SKU:
- DS325854
- Availability:
- Ships Same Business Day
- Weight:
- 41.88 LBS
- PRODUCT NAME:
- TRANSMISSION ASSEMBLY
- RIDING STYLE:
- STREET
- SIXTH GEAR RATIO:
- 0.86:1
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- STYLE:
- OVERDRIVE
- TRANSMISSION TYPE:
- 6 SPEED
- STYLE:
- CLOSE RATIO
$3,596.95 -
Jims 5-Speed Close Ratio Transmission Assembly for 1990-1999 Harley-Davidson Softail 8004
JIMS
$2,970.95Elevate your ride with the JIMS 5-Speed Transmission Assembly 8004, engineered for performance and precision. Crafted from superior materials and assembled with meticulous attention to detail, this transmission offers unmatched reliability and efficiency...11010029- SKU:
- 11010029
- Availability:
- Ships Same Business Day
- Weight:
- 38.50 LBS
- STYLE:
- 5 SPEED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- CLOSE RATIO
- UNITS:
- EACH
- PRODUCT NAME:
- TRANSMISSION ASSEMBLY
- TRANSMISSION TYPE:
- 5 SPEED
- TYPE:
- TRANSMISSION ASSEMBLY
$2,970.95Qty in Cart: 0Quantity:Price:$2,970.95Subtotal: -
Jims 6-Speed Overdrive Transmission for 1991-1999 Harley-Davidson Softail Models 8004C6
JIMS
$3,934.95Upgrade your ride with the JIMS 6-Speed Overdrive Transmission, designed for optimal performance and smooth shifting. This transmission features a close-ratio first gear and a .86:1 overdrive sixth gear, ensuring a perfect blend of power and efficiency...11010030- SKU:
- 11010030
- Availability:
- Ships Same Business Day
- Weight:
- 41.90 LBS
- MATERIAL:
- POLISHED ALUMINUM
- PRODUCT NAME:
- TRANSMISSION ASSEMBLY
- RIDING STYLE:
- STREET
- STYLE:
- CLOSE RATIO
- STYLE:
- OVERDRIVE
- TRANSMISSION TYPE:
- 6 SPEED
- UNITS:
- EACH
- SIXTH GEAR RATIO:
- 0.86:1
$3,934.95 -
Jims 6-Speed Right Side Drive Transmission for Harley Softail 1990-1999 8253
JIMS
$4,986.95Experience unparalleled performance with the JIMS 6-Speed Right Side Drive Transmission 8253, engineered for durability and strength. This innovative transmission is designed specifically for 90-99 RSD Evolution-style Softail applications, ensuring a...11010034- SKU:
- 11010034
- Availability:
- Ships Same Business Day
- Weight:
- 46.00 LBS
- FIFTH GEAR RATIO:
- 1.00:1
- FOURTH GEAR RATIO:
- 1.23:1
- SECOND GEAR RATIO:
- 2,21:1
- UNITS:
- EACH
- FEATURES:
- INCLUDES HYDRAULIC CLUTCH
- FIRST GEAR RATIO:
- 2.94:1
- PRODUCT NAME:
- TRANSMISSION ASSEMBLY
- SIXTH GEAR RATIO:
- 0.86:1
- TRANSMISSION TYPE:
- 6 SPEED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- RIGHT SIDE DRIVE
- THIRD GEAR RATIO:
- 1,57:1
$4,986.95Qty in Cart: 0Quantity:Price:$4,986.95Subtotal: -
Jims Kickstarter Shaft 1941-1947 FL 33096-54B
JIMS
$117.95Upgrade your motorcycle's performance with the JIMS Kickstarter Shaft 33096-54B. This precision-machined replacement shaft is crafted in the U.S.A. to ensure durability and reliability, making it an essential component for any serious rider. Experience...DS196011- SKU:
- DS196011
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- PRODUCT NAME:
- KICKSTARTER SHAFT
- RIDING STYLE:
- STREET
- SIZE:
- STANDARD
- UNITS:
- EACH
- TYPE:
- 4-SPEED
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
Jims 5-Speed Transmission Rebuild Kit 1991-1998 Big Twin 1021
JIMS
$411.95Revitalize your motorcycle's transmission with the JIMS 5-Speed Rebuild Kit 1021. This comprehensive kit is designed to provide everything you need for a complete overhaul of both 5-speed and 6-speed transmissions, ensuring optimal performance and...DS325781- SKU:
- DS325781
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
- TRANSMISSION TYPE:
- 5 SPEED
$411.95 -
Jims 6-Speed Overdrive Super Kit 8085
JIMS
$2,885.95Transform your stock 5-speed transmission into a high-performance 6-speed with the JIMS 6-Speed Overdrive Super Kit 8085. This innovative kit not only enhances your bike's speed capabilities but also significantly reduces engine vibration, providing a...11030008- SKU:
- 11030008
- Availability:
- Ships Same Business Day
- Weight:
- 27.25 LBS
- FIRST GEAR RATIO:
- 2.94:1
- PRODUCT NAME:
- GEAR SET
- SIXTH GEAR RATIO:
- 0.86:1
- STYLE:
- CLOSE RATIO
- STYLE:
- OVERDRIVE
- TRANSMISSION TYPE:
- 6 SPEED
- RIDING STYLE:
- STREET
- UNITS:
- SET
$2,885.95 -
Jims 6-Speed Overdrive Super Kit for 2001-2006 Harley-Davidson Touring Softail Dyna 8085L
JIMS
$2,985.95Transform your standard 5-speed transmission into a high-performance 6-speed system with the JIMS 6-Speed Overdrive Super Kit 8085L. This innovative upgrade not only reduces vibration for enhanced durability but also provides a more comfortable cruising...11030009- SKU:
- 11030009
- Availability:
- Ships Same Business Day
- Weight:
- 27.25 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- STYLE:
- CLOSE RATIO
- FIRST GEAR RATIO:
- 2.94:1
- SIXTH GEAR RATIO:
- 0.86:1
- STYLE:
- OVERDRIVE
- TRANSMISSION TYPE:
- 6 SPEED
$2,985.95Qty in Cart: 0Quantity:Price:$2,985.95Subtotal:
