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
-
ALTO PRODUCTS Steel Plate 095731-160UP1
ALTO PRODUCTS
$9.95Increased surface area for decreased slipping, Increases holding while decreasing heat generation, Precision-made steel plates, Meets or exceeds OEM specifications, Made in the U.S.A.11310459- SKU:
- 11310459
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH PLATE
$9.95 -
MAGNUM Clutch Line 41984
MAGNUM
$138.95Constructed with PTFE inner tubing, DuPont Kevlar aramid fiber, premium Signature Magnum braids and an outer PVC jacket, Three unique stainless steel transmission fittings eliminate the use of adapters, Braid color and weave match all other Magnum...11321116- SKU:
- 11321116
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BRAND SPECIFIC COLOR:
- BLACK PEARL
- LENGTH IMPERIAL:
- 84'
- COLOR/FINISH:
- BLACK
- CONNECTOR TYPE:
- 10 MM 90° BANJO FITTING
- PRODUCT NAME:
- CLUTCH LINE
- RIDING STYLE:
- STREET
- TYPE:
- HYDRAULIC
- UNITS:
- EACH
- MATERIAL:
- STAINLESS STEEL
$138.95 -
JOKER MACHINE Inspection Cover 10-664C
JOKER MACHINE
$47.95Keep your engine bay protected and looking sharp with precision-engineered components that demand attention to detail. This inspection cover combines functional protection with a finished appearance—essential for any build where aesthetics matter as much...11070261- SKU:
- 11070261
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- TYPE:
- INSPECTION
- MATERIAL:
- 6061 T-6 ALUMINUM
- MOUNTING STYLE:
- 2 HOLE
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- STYLE:
- FINNED
- UNITS:
- EACH
$47.95 -
JOKER MACHINE Derby Cover 06-98TC
JOKER MACHINE
$127.95A quality derby cover protects your primary drivetrain from contamination while maintaining a clean, finished appearance on your Harley-Davidson. The JOKER MACHINE Derby Cover delivers both functionality and style with precision machining and domestic...11070209- SKU:
- 11070209
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 5 HOLE
- TYPE:
- DERBY
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- STYLE:
- FINNED
- UNITS:
- EACH
$127.95 -
JOKER MACHINE Derby Cover - Black - Joker Racing 10-692B
JOKER MACHINE
$144.95A derby cover serves as both a protective barrier and a visual statement on your engine case. This Joker Machine design shields internal components from road debris and moisture while delivering the aggressive aesthetic your build demands. Precision...11070292- SKU:
- 11070292
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- RIDING STYLE:
- STREET
- STYLE:
- JOKER RACING
- TYPE:
- DERBY
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$144.95Qty in Cart: 0Quantity:Price:$144.95Subtotal: -
JOKER MACHINE Inspection Cover - Flame 921016FC
JOKER MACHINE
$109.95Engine bay aesthetics matter, especially when you've invested in quality internals worth showcasing. The JOKER MACHINE Inspection Cover replaces that generic factory panel with a precision-machined piece that combines form and function—protecting your...DS375065- SKU:
- DS375065
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- RIDING STYLE:
- STREET
- TYPE:
- INSPECTION
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- STYLE:
- FLAME
$109.95Qty in Cart: 0Quantity:Price:$109.95Subtotal: -
JOKER MACHINE Inspection Cover - Lucky 7 921016L
JOKER MACHINE
$109.95The JOKER MACHINE Inspection Cover – Lucky 7 keeps your engine bay clean while adding a custom touch that reflects your attention to detail. This CNC-machined cover protects internal components from dust and debris while maintaining easy access for...DS375261- SKU:
- DS375261
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- STYLE:
- LUCKY-7
- TYPE:
- INSPECTION
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
$109.95 -
DRAG SPECIALTIES Kickstarter Shaft 292003-HC-3
DRAG SPECIALTIES
$26.45A reliable kickstarter shaft is mission-critical for consistent engine engagement—worn or damaged shafts lead to weak starts, incomplete engagement, and potential damage to surrounding components. The DRAG Specialties Kickstarter Shaft 292003-HC-3...DS196010- SKU:
- DS196010
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- PRODUCT NAME:
- KICKSTARTER SHAFT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- POLISHED
- UNITS:
- EACH
$26.45 -
DRAG SPECIALTIES Kickstarter Crank Gear 292012-HC4
DRAG SPECIALTIES
$33.87If your kickstarter assembly is showing signs of wear or has stripped teeth, this replacement crank gear from Drag Specialties restores reliable engagement and smooth operation. The Kickstarter Crank Gear 292012-HC4 is engineered for direct fitment on...DS241028- SKU:
- DS241028
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- TOOTH COUNT:
- 24
- UNITS:
- EACH
- SIZE:
- STANDARD
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- TYPE:
- KICKSTART CRANK
$33.87 -
ALTO PRODUCTS Red Eagle Plates 095752P
ALTO PRODUCTS
$107.95If your clutch is slipping under load or generating excessive heat, you're losing power and reliability. ALTO Products Red Eagle Plates deliver the holding capacity you need while maintaining cooler operating temperatures—whether you're running wet or...11310478- SKU:
- 11310478
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- COLOR/FINISH:
- RED
- FRICTION PLATE MATERIAL:
- ORGANIC
- PRODUCT NAME:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- MODEL:
- RED EAGLE®
- UNITS:
- 9 PACK
- TYPE:
- CLUTCH
$107.95Qty in Cart: 0Quantity:Price:$107.95Subtotal: -
ALTO PRODUCTS Steel Plate Set 095753E
ALTO PRODUCTS
$54.95ALTO Products steel plate sets are engineered for racers and builders who demand precision fitment and structural integrity in critical applications. Whether you're reinforcing mounting points, fabricating custom brackets, or building a competition...11310485- SKU:
- 11310485
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- PRODUCT NAME:
- PLATE SET
- UNITS:
- SET OF 7
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- MATERIAL:
- STEEL
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
ANDREWS 4-Speed Mainshaft 258190
ANDREWS
$263.95If you're rebuilding a 4-speed transmission, the mainshaft is the critical component that directly impacts power delivery and shift quality. The Andrews 258190 mainshaft is engineered for reliable engagement and smooth operation under demanding racing...DS199449- SKU:
- DS199449
- Availability:
- Ships Same Business Day
- Weight:
- 1.69 LBS
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- MAINSHAFT
- UNITS:
- EACH
$263.95Qty in Cart: 0Quantity:Price:$263.95Subtotal: -
ANDREWS Stock Ratio Clutch Gear 254730
ANDREWS
$299.95The ANDREWS Stock Ratio Clutch Gear delivers reliable engagement and smooth power delivery for stock and lightly modified engines. This precision-engineered component maintains OEM specifications while ensuring consistent clutch performance under daily...DS199438- SKU:
- DS199438
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- GEAR CLUTCH
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- STYLE:
- STANDARD RATIO
- TYPE:
- STOCK RATIO
$299.95Qty in Cart: 0Quantity:Price:$299.95Subtotal: -
ANDREWS Countershaft - Main Drive Gear 255580
ANDREWS
$130.95The ANDREWS Countershaft - Main Drive Gear 255580 is essential for maintaining reliable power transfer in high-rpm applications. A worn or damaged countershaft gear directly compromises acceleration response and overall drivetrain efficiency. OEM...DS199439- SKU:
- DS199439
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- PRODUCT NAME:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD RATIO
- TOOTH COUNT:
- 27
- TYPE:
- MAIN DRIVE GEAR
- UNITS:
- EACH
$130.95 -
ANDREWS 5-Speed Gear Set - 2.94:1 First Ratio 296081
ANDREWS
$1,414.95A 5-speed transmission demands gear components that can handle sustained high-RPM shifts without compromise. The ANDREWS 296081 gear set delivers the durability and precision required for competitive racing or demanding street applications, with a 2.94:1...11060058- SKU:
- 11060058
- Availability:
- Ships Same Business Day
- Weight:
- 14.45 LBS
- FIRST GEAR RATIO:
- 2.94:1
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- GEAR SET
- RIDING STYLE:
- STREET
- STYLE:
- CLOSE RATIO
- UNITS:
- SET
$1,414.95Qty in Cart: 0Quantity:Price:$1,414.95Subtotal: -
EASTERN MOTORCYCLE PARTS Sprocket Shaft Spacers - 0.120" A-24034-70
EASTERN MOTORCYCLE PARTS
$13.50Improper sprocket and pulley alignment is one of the leading causes of premature wear, vibration, and power loss in high-performance drivetrain systems. This spacer kit ensures your front motor sprocket or belt drive pulley sits at the exact...DS196138- SKU:
- DS196138
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- TYPE:
- SPROCKET
- UNITS:
- 5 PACK
$13.50 -
EASTERN MOTORCYCLE PARTS Starter Springs A-33391-36
EASTERN MOTORCYCLE PARTS
$13.50A reliable starter motor depends on quality internal components, and worn or weak starter springs directly compromise cold-start performance and engine turnover consistency. The EASTERN MOTORCYCLE PARTS Starter Springs A-33391-36 restore proper spring...21100362- SKU:
- 21100362
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- TYPE:
- STARTER CLUTCH
- UNITS:
- 10 PACK
- PRODUCT NAME:
- SPRING
- RIDING STYLE:
- STREET
$13.50 -
EASTERN MOTORCYCLE PARTS Bearing - 9231 41-0111
EASTERN MOTORCYCLE PARTS
$49.95Bearing failure in your primary drive system doesn't just compromise performance—it can sideline your bike entirely. This Eastern Motorcycle Parts bearing (9231 41-0111) is engineered as a direct OEM replacement, delivering the precision tolerances and...11200309- SKU:
- 11200309
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BEARING
- TYPE:
- INNER PRIMARY MAINSHAFT
$49.95 -
EBC Clutch Kit SRK7024
EBC
$279.42Include aramid fiber-lined friction plates, steel separator plates and springs, Designed to withstand the rigors of hard street and racetrack use11313289- SKU:
- 11313289
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- TYPE:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$279.42Qty in Cart: 0Quantity:Price:$279.42Subtotal: -
EBC Clutch Kit SRC7019
EBC
$222.85If you're pushing your vehicle harder on the track or in aggressive street driving, your stock clutch won't cut it. The EBC Clutch Kit SRC7019 delivers the engagement aggression and thermal durability you need to handle sustained high-performance driving...11313322- SKU:
- 11313322
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- CLUTCH KIT
- TYPE:
- FRICTION PLATE SET
$222.85Qty in Cart: 0Quantity:Price:$222.85Subtotal:
