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
-
DRAG SPECIALTIES Complete 5 Stud Hub 17-0100A-BX-LB2
DRAG SPECIALTIES
$196.68Include hub, liner, rollers/retainer, adjusting nuts and plateDS195006- SKU:
- DS195006
- Availability:
- Ships Same Business Day
- Weight:
- 5.25 LBS
- RIDING STYLE:
- STREET
- STYLE:
- FIVE-STUD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- HUB
- UNITS:
- EACH
$196.68Qty in Cart: 0Quantity:Price:$196.68Subtotal: -
DRAG SPECIALTIES Inner Primary Bearing Kit 25-3103
DRAG SPECIALTIES
$60.08Includes pinion seal, main shaft seal, bearing snap rings, inner bearing race and bearing, Fits OEM and most aftermarket inner primaries11200281- SKU:
- 11200281
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- TYPE:
- INNER PRIMARY MAINSHAFT
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$60.08 -
DRAG SPECIALTIES Kick Pedal with Chrome Swivel 16-0027A SC3
DRAG SPECIALTIES
$27.76Wide pedal features a brilliantly chromed swivelDS241001- SKU:
- DS241001
- Availability:
- Ships Same Business Day
- Weight:
- 0.84 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- KICK PEDAL
- UNITS:
- EACH
$27.76Qty in Cart: 0Quantity:Price:$27.76Subtotal: -
DRAG SPECIALTIES Compensating Sprocket Kit 241274
DRAG SPECIALTIES
$305.86Complete kits contain a high-quality sprocket, sprocket shaft extension, sliding cam, sprocket nut and cover with spring plateDS195196- SKU:
- DS195196
- Availability:
- Ships Same Business Day
- Weight:
- 5.68 LBS
- TOOTH COUNT:
- 25
- UNITS:
- KIT
- TYPE:
- COMPENSATING
- PRODUCT NAME:
- SPROCKET KIT
- RIDING STYLE:
- STREET
$305.86 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 20 Tooth - XL 26-0031-20-SC2
DRAG SPECIALTIES
$45.71High-quality steel replacement sprocket, Heat treated for added durabilityDS191032- SKU:
- DS191032
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- SPROCKET
- UNITS:
- EACH
- TOOTH COUNT:
- 20
- TYPE:
- MAINSHAFT
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- RAW
- RIDING STYLE:
- STREET
$45.71 -
DRAG SPECIALTIES Transmission Mainshaft Sprocket - 22 Tooth 26-0037-22-SC2
DRAG SPECIALTIES
$32.19High-quality OEM-style replacement sprockets, Heat-treated for added durability, For use with 530 chainDS191060- SKU:
- DS191060
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- CHAIN SIZE:
- 530
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 22
- UNITS:
- EACH
- MATERIAL:
- STEEL
- TYPE:
- MAINSHAFT
$32.19Qty in Cart: 0Quantity:Price:$32.19Subtotal: -
DRAG SPECIALTIES Rear Sprocket Spacer - .200" 26-0125-S-SC2
DRAG SPECIALTIES
$18.67Zinc-plated steel spacer shims for rear sprocket or belt pulley, Used often when installing a wider rear tire, Longer bolts may be required when using spacers.DS199458- SKU:
- DS199458
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- COLOR/FINISH:
- ZINC
- TYPE:
- PULLEY
- PRODUCT NAME:
- SPACER
- TYPE:
- SPROCKET
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 0.200'
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
$18.67 -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Chrome 26-010751-BC648
DRAG SPECIALTIES
$112.27High-grade carbon steel replacement rear wheel sprocket, 1.9" center holeDS325341- SKU:
- DS325341
- Availability:
- Ships Same Business Day
- Weight:
- 5.38 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- OFFSET IMPERIAL:
- 0.23'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- TYPE:
- DRIVE
- UNITS:
- EACH
$112.27 -
DRAG SPECIALTIES Transmission Bearing 6305-2RS
DRAG SPECIALTIES
$14.68Single bearing11060011- SKU:
- 11060011
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- BALL BEARING
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
$14.68 -
DRAG SPECIALTIES Chrome Derby Cover 33-0054
DRAG SPECIALTIES
$63.81Die-cast construction with a domed design, Includes mounting hardware, '06 Dyna Glide and all '07-'18 Big Twin (except '16-'18 Dressers, '15 FLHTCUL/ FLHTKL, '18 FLSB) applications will require the use of gasket part 0934-0289 or 0934-0788.11070047- SKU:
- 11070047
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$63.81Qty in Cart: 0Quantity:Price:$63.81Subtotal: -
DRAG SPECIALTIES Clutch Spring 27-882-HC-9
DRAG SPECIALTIES
$26.73Standard-duty replacement spring, Made in the U.S.A.20040017- SKU:
- 20040017
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- DIAPHRAGM SPRING
- UNITS:
- EACH
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$26.73Qty in Cart: 0Quantity:Price:$26.73Subtotal: -
DRAG SPECIALTIES Chrome Inspection Cover D33-0115C
DRAG SPECIALTIES
$36.00Machined from billet aluminum11070486- SKU:
- 11070486
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- INSPECTION COVER
- UNITS:
- KIT
- TYPE:
- PRIMARY
$36.00 -
DRAG SPECIALTIES Primary Chain - #35-3 x 94 CA35-3S2N/1000
DRAG SPECIALTIES
$129.73Improved fatigue resistance, Pre-loaded to reduce initial elongation, Endless construction using high-quality raw materials for long life, Made in Italy11200286- SKU:
- 11200286
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- NUMBER OF LINKS:
- 94
- PRODUCT NAME:
- PRIMARY CHAIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$129.73 -
DRAG SPECIALTIES Pressure Plate 149400
DRAG SPECIALTIES
$24.67Tough die-cast construction11320269- SKU:
- 11320269
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- PRESSURE PLATE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- CLUTCH
$24.67 -
DRAG SPECIALTIES Rear Drive Belt - 137-Tooth - 1" BDL SPC-137-1
DRAG SPECIALTIES
$207.95Carbon fiber reinforced Goodyear engineered Falcon SPC™ belts offer up to 33 percent more tensile strength than conventional aramid reinforced belts, High-temperature rubber compound offers excellent flex and long service life, Fabric reinforced belt...12040061- SKU:
- 12040061
- Availability:
- Ships Same Business Day
- Weight:
- 1.97 LBS
- MATERIAL:
- CARBON FIBER
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 137
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$207.95 -
DRAG SPECIALTIES Inner Primary Mainshaft Bearing with Seal 25-3101
DRAG SPECIALTIES
$60.08Includes pinion seal, main shaft seal, bearing snap rings, inner bearing race and bearing, Fits OEM and most aftermarket inner primaries11200162- SKU:
- 11200162
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY MAINSHAFT
- UNITS:
- KIT
$60.08 -
DRAG SPECIALTIES Rear Drive Belt - 133-Tooth - 20mm BDL SPC-133-20
DRAG SPECIALTIES
$207.95Carbon fiber reinforced Goodyear engineered Falcon SPC™ belts offer up to 33 percent more tensile strength than conventional aramid reinforced belts, High-temperature rubber compound offers excellent flex and long service life, Fabric reinforced belt...12040053- SKU:
- 12040053
- Availability:
- Ships Same Business Day
- Weight:
- 1.73 LBS
- PRODUCT NAME:
- BELT
- RIDING STYLE:
- STREET
- MATERIAL:
- CARBON FIBER
- TOOTH COUNT:
- 133
- UNITS:
- EACH
- TYPE:
- REAR DRIVE
$207.95 -
DRAG SPECIALTIES Primary Chain Adjusting Shoe 15-0905-SC1
DRAG SPECIALTIES
$16.43Replaces stock nylon shoeDS192002- SKU:
- DS192002
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MATERIAL:
- NYLON
- PRODUCT NAME:
- ADJUSTING SHOE
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY CHAIN
- UNITS:
- EACH
$16.43Qty in Cart: 0Quantity:Price:$16.43Subtotal: -
DRAG SPECIALTIES Inner Primary Bearing Race 40-2337
DRAG SPECIALTIES
$13.42Fits most OEM and most aftermarket inner primaries11200305- SKU:
- 11200305
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- STREET
- TYPE:
- MAINSHAFT
- UNITS:
- EACH
- PRODUCT NAME:
- BEARING
$13.42 -
DRAG SPECIALTIES Skull Derby Cover - Chrome - 3 Hole 33-0061-PC
DRAG SPECIALTIES
$78.23Die-cast construction, Skull protrudes outward about .750"19020062- SKU:
- 19020062
- Availability:
- Ships Same Business Day
- Weight:
- 0.98 LBS
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MOUNTING STYLE:
- 3 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- 3-D SKULL
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$78.23
