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 208500
ANDREWS
$273.95Sold individually, unless noted.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
$273.95 -
ANDREWS 4-Speed Mainshaft 208650
ANDREWS
$268.95Sold individually, unless noted.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
$268.95 -
ANDREWS 4-Speed Mainshaft 208700
ANDREWS
$271.95Sold individually, unless noted.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
$271.95 -
ANDREWS Pulley - 34 Tooth 290340
ANDREWS
$256.95Machined from heat-treated, gear-quality steel, Made in the U.S.A., May require some elongation of axle hole in swingarm or change in belt length to allow for proper belt adjustment.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
$256.95 -
ANDREWS Pulley - 30 Tooth 290300
ANDREWS
$256.95Machined from heat-treated, gear-quality steel, Made in the U.S.A., May require some elongation of axle hole in swingarm or change in belt length to allow for proper belt adjustment.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
$256.95 -
ANDREWS Mainshaft - 2nd Gear 299102
ANDREWS
$129.95Sold individually, unless noted.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
$129.95 -
ALLOY ART TXR Stabilizer TXR-1
ALLOY ART
$399.95CNC-machined from 6061 T-6 aluminum, Improve handling by triangulating motor and transmission in the chassis to eliminate frame wobble at high speeds and while cornering, Adjustable intermediate member with integrated patented Gooden-Tite polyurethane...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
$399.95 -
FEULING OIL PUMP CORP. American Derby Cover - Polished 9151
FEULING OIL PUMP CORP.
$159.95Dress your motorcycle in style with a FEULING® derby cover, machined from billet 6061 aluminum, Bolts onto the factory primary cover, Show Polished with engraved American Flag Logo11070613- SKU:
- 11070613
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- COLOR/FINISH:
- SILVER
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- DERBY
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
FEULING OIL PUMP CORP. American Derby Cover - Black 9154
FEULING OIL PUMP CORP.
$159.95Dress your motorcycle in style with a FEULING® derby cover, machined from billet 6061 aluminum, Bolts onto the factory primary cover, Show Polished with engraved American Flag Logo11070614- 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
$291.95The answer to the handling challenges faced by most touring models has arrived, Helps stabilize the chassis by keeping the motor/swingarm assembly aligned with chassis without causing unnecessary vibration to the rider, Ground clearance will not be...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 -
COLONY Transmission Plug - Chrome - Hex 7351-2
COLONY
$15.95Chrome-plated, cad or brushed aluminum fill plugs, For 4-speed transmission models, Made in the U.S.A.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
$15.95 -
HAWG HALTERS Sprocket Brake Caliper - Left - Chrome RKSBLCC351
HAWG HALTERS
$799.004-piston caliper with integral mount for 3/4" or 1" axle and weld-on mounting tab, Stainless steel heat treated, ground and polished 51-tooth sprocket with mounting hardware, Made in the U.S.A.12100111- SKU:
- 12100111
- Availability:
- Ships Same Business Day
- Weight:
- 10.60 LBS
- PRODUCT NAME:
- BRAKE CALIPER
- UNITS:
- KIT
- TYPE:
- SPROCKET
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- LEFT SIDE REAR
- TOOTH COUNT:
- 51
$799.00 -
DP BRAKES Clutch Kit DPHK607
DP BRAKES
$394.95Designed to outperform any OEM or aftermarket clutch, HD clutch kit comes in a foam-lined, hard plastic case that protects clutch components from being damaged prior to installation, Case can be used to store and transport parts, tools or other items...11313611- SKU:
- 11313611
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- FEATURES:
- INCLUDES SPRINGS
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$394.95 -
DP BRAKES Clutch Kit DPHK600
DP BRAKES
$304.95Specifically designed to provide fade and slip-free operation, Also provides superior gear shifting and extended life, Each kit includes friction plates and steel drive plates; springs sold separately11313373- SKU:
- 11313373
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- RIDING STYLE:
- STREET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
- STYLE:
- STANDARD
$304.95 -
DP BRAKES Clutch Kit DPHK606
DP BRAKES
$265.95Specifically designed to provide fade and slip-free operation, Also provides superior gear shifting and extended life, Each kit includes friction plates and steel drive plates; springs sold separately11313490- SKU:
- 11313490
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- UNITS:
- KIT
- PRODUCT NAME:
- CLUTCH KIT
- RIDING STYLE:
- OFF-ROAD
$265.95Qty in Cart: 0Quantity:Price:$265.95Subtotal: -
DP BRAKES Clutch Kit DPHK601
DP BRAKES
$230.95Specifically designed to provide fade and slip-free operation, Also provides superior gear shifting and extended life, Each kit includes friction plates and steel drive plates; springs sold separately11313374- SKU:
- 11313374
- Availability:
- Ships Same Business Day
- Weight:
- 2.15 LBS
- PRODUCT NAME:
- CLUTCH KIT
- DRIVE PLATE MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- UNITS:
- KIT
$230.95 -
DRAG SPECIALTIES Rear Pulley Insert - 70-Tooth - BT '84-'99 80039
DRAG SPECIALTIES
$62.35Precision-formed, chrome-plated rear pulley inserts, Designed to match OEM pulley, Fit the outer portions of the belt drive sprocket12010539- SKU:
- 12010539
- Availability:
- Ships Same Business Day
- Weight:
- 1.71 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 70
- TYPE:
- PULLEY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- MODEL:
- PRECISION-FORMED
$62.35 -
DRAG SPECIALTIES Rear Pulley Insert - 65-Tooth - BT '84-'99 75005
DRAG SPECIALTIES
$62.35Precision-formed, chrome-plated rear pulley inserts, Designed to match OEM pulley, Fit the outer portions of the belt drive sprocket12010540- SKU:
- 12010540
- Availability:
- Ships Same Business Day
- Weight:
- 1.67 LBS
- COLOR/FINISH:
- CHROME
- MODEL:
- PRECISION-FORMED
- PRODUCT NAME:
- COVER
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TOOTH COUNT:
- 65
- TYPE:
- PULLEY
$62.35 -
DRAG SPECIALTIES Rear Wheel Sprocket - 46-Tooth - Chrome 19430P
DRAG SPECIALTIES
$93.55High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12100957- SKU:
- 12100957
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- MATERIAL:
- CARBON STEEL
- CHAIN SIZE:
- 530
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- OFFSET IMPERIAL:
- 0.46'
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
$93.55 -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Big Twin 13464P
DRAG SPECIALTIES
$61.31Zinc-plated 51-tooth rear sprocket, Includes necessary rivets12100777- SKU:
- 12100777
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- COLOR/FINISH:
- NATURAL
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- ZINC
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE
- UNITS:
- EACH
$61.31Qty in Cart: 0Quantity:Price:$61.31Subtotal:
