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
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On Sale
BARNETT Heavy Duty Clutch Spring 502-00-01078
BARNETT
MSRP: $34.13Now: $30.72Was: $34.13Stock clutch springs compress under sustained high-RPM operation and aggressive driving, compromising engagement consistency and accelerating wear on your clutch assembly. The BARNETT Heavy Duty...DS223743- SKU:
- DS223743
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- PRODUCT NAME:
- SPRING
- SPRING MATERIAL:
- STAINLESS STEEL
- STYLE:
- DIAPHRAGM SPRING
- UNITS:
- EACH
MSRP: $34.13Now: $30.72Was: $34.13 -
On Sale
BARNETT Drive Plate 401-30-063100
BARNETT
MSRP: $8.79Now: $7.91Was: $8.79The BARNETT Drive Plate 401-30-063100 delivers the thermal stability and shift precision your high-performance drivetrain demands under sustained racing conditions. Whether you're running a wet or...DS223771- SKU:
- DS223771
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- DRIVE PLATE
- TYPE:
- CLUTCH
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
MSRP: $8.79Now: $7.91Was: $8.79 -
On Sale
BARNETT Clutch Friction Plates 302-30-10090
BARNETT
MSRP: $143.33Now: $129.00Was: $143.33If you're running a high-performance clutch under demanding conditions, stock friction plates won't cut it. BARNETT's carbon fiber and aramid plate construction delivers the thermal stability and...DS223773- SKU:
- DS223773
- Availability:
- Ships Same Business Day
- Weight:
- 1.63 LBS
- RIDING STYLE:
- STREET
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- UNITS:
- SET OF 7
- PRODUCT NAME:
- FRICTION PLATE SET
- TYPE:
- CLUTCH
MSRP: $143.33Now: $129.00Was: $143.33 -
On Sale
BARNETT Clutch Kit 303-30-10043
BARNETT
MSRP: $297.41Now: $267.67Was: $297.41A worn or slipping clutch robs your engine of power delivery and wastes your acceleration potential. The BARNETT Clutch Kit 303-30-10043 restores full clamping force and engagement precision with...11312445- SKU:
- 11312445
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- FEATURES:
- INCLUDES SPRINGS
- FRICTION PLATE MATERIAL:
- DUPONT™ KEVLAR®
- TYPE:
- COMPLETE
- UNITS:
- KIT
MSRP: $297.41Now: $267.67Was: $297.41 -
On Sale
BARNETT Heavy Duty Clutch Spring 502-00-01077
BARNETT
MSRP: $42.67Now: $38.40Was: $42.67OEM clutch springs reach their limits under sustained track abuse—they lose tension, cause slippage, and rob you of consistent power delivery. The BARNETT Heavy Duty Clutch Spring delivers...DS223742- SKU:
- DS223742
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- SPRING MATERIAL:
- STAINLESS STEEL
- STYLE:
- DIAPHRAGM SPRING
- UNITS:
- EACH
- PRODUCT NAME:
- SPRING
MSRP: $42.67Now: $38.40Was: $42.67 -
On Sale
BARNETT Extra Plate Clutch Kit - Carbon Fiber 307-30-20011
BARNETT
MSRP: $253.05Now: $227.75Was: $253.05A clutch that can handle sustained high-RPM shifts and aggressive engagement without fade or chatter is non-negotiable for serious performance driving. The BARNETT Extra Plate Clutch Kit combines...DS223750- SKU:
- DS223750
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- UNITS:
- KIT
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- PRODUCT NAME:
- CLUTCH PLATE KIT
- RIDING STYLE:
- STREET
MSRP: $253.05Now: $227.75Was: $253.05 -
On Sale
BAKER DRIVETRAIN Shift Drum Kit - 5-Speed Big Twin 170-5-A
BAKER DRIVETRAIN
MSRP: $374.00Now: $355.30Was: $374.00If you're running a 5-speed Big Twin, shift quality directly impacts lap times and rider fatigue. The BAKER DRIVETRAIN Shift Drum Kit eliminates notchy, heavy shifts by reducing inertia through...DS194401- SKU:
- DS194401
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- 5-SPEED
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- SHIFT DRUM
- UNITS:
- KIT
MSRP: $374.00Now: $355.30Was: $374.00 -
On Sale
ANDREWS Stock Cluster Gear 206330
ANDREWS
MSRP: $176.95Now: $159.26Was: $176.95The ANDREWS Stock Cluster Gear 206330 is the foundation of reliable power delivery in your transmission. Whether you're rebuilding after track use or maintaining stock performance specs, this...DS199412- SKU:
- DS199412
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- STYLE:
- STANDARD RATIO
- TYPE:
- STOCK CLUSTER
- THIRD GEAR RATIO:
- 1.23:1
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $176.95Now: $159.26Was: $176.95 -
On Sale
ANDREWS 4-Speed Countershaft 207770
ANDREWS
MSRP: $54.95Now: $49.46Was: $54.95A quality countershaft is the backbone of reliable transmission performance, directly impacting shift quality, durability, and power delivery to the wheels. The Andrews 4-Speed Countershaft 207770 is...DS199414- SKU:
- DS199414
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- COUNTERSHAFT
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION
MSRP: $54.95Now: $49.46Was: $54.95Qty in Cart: 0Quantity:Price:MSRP: $54.95Now: $49.46Was: $54.95Subtotal: -
On Sale
ANDREWS 3rd Gear Mainshaft 206220
ANDREWS
MSRP: $102.95Now: $92.66Was: $102.95The Andrews 3rd Gear Mainshaft 206220 is engineered for riders who demand reliability in high-stress transmission applications. Whether you're running consistent track days or pushing your bike to...DS199415- SKU:
- DS199415
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- THIRD GEAR
- UNITS:
- EACH
- PRODUCT NAME:
- GEAR
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD RATIO
- THIRD GEAR RATIO:
- 1.23:1
MSRP: $102.95Now: $92.66Was: $102.95 -
On Sale
ANDREWS 4-Speed Mainshaft 208500
ANDREWS
MSRP: $273.95Now: $246.56Was: $273.95If you're building or rebuilding a high-performance engine, your transmission internals must match your power output and intended application. The Andrews 4-Speed Mainshaft 208500 is a...DS199416- SKU:
- DS199416
- Availability:
- Ships Same Business Day
- Weight:
- 1.94 LBS
- STYLE:
- 4-SPEED
- PRODUCT NAME:
- MAINSHAFT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
MSRP: $273.95Now: $246.56Was: $273.95 -
On Sale
ANDREWS 4-Speed Mainshaft 208650
ANDREWS
MSRP: $268.95Now: $242.06Was: $268.95If you're running a high-performance engine or rebuilding a vintage transmission, the Andrews 4-Speed Mainshaft 208650 is the precision-engineered core component that determines your shift quality...DS199417- SKU:
- DS199417
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- PRODUCT NAME:
- MAINSHAFT
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION
- UNITS:
- EACH
MSRP: $268.95Now: $242.06Was: $268.95 -
On Sale
ANDREWS 4-Speed Mainshaft 208700
ANDREWS
MSRP: $271.95Now: $244.76Was: $271.95The Andrews 4-Speed Mainshaft 208700 is engineered for applications demanding reliable power transfer and precise gear engagement in high-performance transmissions. Whether you're building a...DS199418- SKU:
- DS199418
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- RIDING STYLE:
- STREET
- STYLE:
- 4-SPEED
- TYPE:
- TRANSMISSION
- PRODUCT NAME:
- MAINSHAFT
- UNITS:
- EACH
MSRP: $271.95Now: $244.76Was: $271.95Qty in Cart: 0Quantity:Price:MSRP: $271.95Now: $244.76Was: $271.95Subtotal: -
On Sale
ANDREWS Pulley - 34 Tooth 290340
ANDREWS
MSRP: $256.95Now: $231.26Was: $256.95The ANDREWS 34-tooth pulley delivers precise belt drive control and reliable power transfer for high-demand applications. Manufactured from heat-treated, gear-quality steel, this pulley withstands...DS199461- SKU:
- DS199461
- Availability:
- Ships Same Business Day
- Weight:
- 6.50 LBS
- PRODUCT NAME:
- PULLEY
- MODEL:
- SMOOTH CRUISING
- TRANSMISSION TYPE:
- 5 SPEED
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 34
- TYPE:
- TRANSMISSION
- MATERIAL:
- STEEL
MSRP: $256.95Now: $231.26Was: $256.95 -
On Sale
ANDREWS Pulley - 30 Tooth 290300
ANDREWS
MSRP: $256.95Now: $231.26Was: $256.95The ANDREWS 30-Tooth Pulley delivers reliable power transmission with the precision engineering demanded by serious riders and builders. Machined from heat-treated, gear-quality steel, this...DS199462- SKU:
- DS199462
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- PRODUCT NAME:
- PULLEY
- TOOTH COUNT:
- 30
- TRANSMISSION TYPE:
- 5 SPEED
- UNITS:
- EACH
- MATERIAL:
- STEEL
- MODEL:
- GOOD ACCELERATION
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
MSRP: $256.95Now: $231.26Was: $256.95Qty in Cart: 0Quantity:Price:MSRP: $256.95Now: $231.26Was: $256.95Subtotal: -
On Sale
ANDREWS Mainshaft - 2nd Gear 299102
ANDREWS
MSRP: $129.95Now: $116.96Was: $129.95A worn or damaged second gear on your mainshaft will compromise acceleration, create grinding noises, and ultimately leave you stranded. The ANDREWS Mainshaft - 2nd Gear 299102 is a direct...DS199467- SKU:
- DS199467
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- GEAR
- TOOTH COUNT:
- 24
- TYPE:
- SECOND GEAR
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- MATERIAL:
- HIGH-NICKEL ALLOY STEEL
- STYLE:
- STANDARD RATIO
MSRP: $129.95Now: $116.96Was: $129.95 -
ALLOY ART TXR Stabilizer TXR-1
ALLOY ART
$399.95Frame wobble at high speeds and aggressive cornering isn't just uncomfortable—it's a performance killer that compromises your handling precision and chassis dynamics. The ALLOY ART TXR Stabilizer...11110001- SKU:
- 11110001
- Availability:
- Ships Same Business Day
- Weight:
- 4.92 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- 6061 ALUMINUM
- TYPE:
- BOLT-ON
- COLOR/FINISH:
- BLACK ANODIZED
- PRODUCT NAME:
- STABILIZER KIT
- UNITS:
- EACH
$399.95Qty in Cart: 0Quantity:Price:$399.95Subtotal: -
FEULING OIL PUMP CORP. American Derby Cover - Black 9154
FEULING OIL PUMP CORP.
$159.95A primary cover sets the visual tone for your entire motorcycle—why settle for stock when you can command attention with precision-machined craftsmanship? The FEULING® Derby Cover transforms your...11070614- SKU:
- 11070614
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- TYPE:
- DERBY
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$159.95 -
PROGRESSIVE SUSPENSION Touring Link 30-2001
PROGRESSIVE SUSPENSION
$291.95Touring models demand precise chassis control without sacrificing rider comfort—and frame flex during aggressive cornering undermines both. The Progressive Suspension Touring Link 30-2001 solves this...11110013- SKU:
- 11110013
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- TOURING LINK
- TYPE:
- BOLT-ON
$291.95 -
On Sale
COLONY Transmission Plug - Chrome - Hex 7351-2
COLONY
MSRP: $15.95Now: $14.36Was: $15.95A quality transmission fill plug is essential for maintaining proper fluid levels and preventing costly leaks that compromise transmission performance. The COLONY Transmission Plug delivers reliable...DS190924- SKU:
- DS190924
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TRANSMISSION TYPE:
- 4 SPEED
- UNITS:
- EACH
- MATERIAL:
- CHROME
- PRODUCT NAME:
- TRANSMISSION PLUG
- RIDING STYLE:
- STREET
- STYLE:
- HEX
MSRP: $15.95Now: $14.36Was: $15.95
