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 Outer Primary Cover - Chrome - Narrow Profile 77957
DRAG SPECIALTIES
$463.45Die-cast aluminum construction, Hardware and bushing not included11070536- SKU:
- 11070536
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- STYLE:
- NARROW
- TYPE:
- OUTER PRIMARY
- UNITS:
- EACH
$463.45 -
DRAG SPECIALTIES Outer Primary Cover - Black - Narrow Profile 77957B
DRAG SPECIALTIES
$472.72Die-cast aluminum construction, Hardware and bushing not included11070537- SKU:
- 11070537
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- STYLE:
- NARROW
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- OUTER PRIMARY
- UNITS:
- EACH
- COLOR/FINISH:
- SATIN BLACK
$472.72 -
DRAG SPECIALTIES Primary Cover - Chrome 63134
DRAG SPECIALTIES
$376.93Die-cast aluminum construction, Inspection covers and derby covers are available separately11070538- SKU:
- 11070538
- Availability:
- Ships Same Business Day
- Weight:
- 5.85 LBS
- TYPE:
- PRIMARY
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$376.93 -
DRAG SPECIALTIES Primary Cover - Black 63134B
DRAG SPECIALTIES
$368.69Die-cast aluminum construction, Inspection covers and derby covers are available separately11070539- SKU:
- 11070539
- Availability:
- Ships Same Business Day
- Weight:
- 5.60 LBS
- TYPE:
- PRIMARY
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$368.69 -
DRAG SPECIALTIES Split Skull Derby Cover - Chrome - 5-Hole 78043B2
DRAG SPECIALTIES
$74.11Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070546- SKU:
- 11070546
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MODEL:
- SPLIT SKULL
- MOUNTING STYLE:
- 5 HOLE
- TYPE:
- DERBY
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$74.11 -
DRAG SPECIALTIES Split Skull Derby Cover - Black - 5-Hole 78043B
DRAG SPECIALTIES
$75.14Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070547- SKU:
- 11070547
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MODEL:
- SPLIT SKULL
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- DERBY
$75.14 -
DRAG SPECIALTIES Split Skull Derby Cover - Chrome - 3-Hole 78045
DRAG SPECIALTIES
$79.26Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070548- SKU:
- 11070548
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MODEL:
- SPLIT SKULL
- MOUNTING STYLE:
- 5 HOLE
- PRODUCT NAME:
- DERBY COVER
- TYPE:
- DERBY
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$79.26 -
DRAG SPECIALTIES Split Skull Derby Cover - Black - 3-Hole 78045B
DRAG SPECIALTIES
$74.11Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070549- SKU:
- 11070549
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- DERBY
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 3 HOLE
- RIDING STYLE:
- STREET
- MODEL:
- SPLIT SKULL
$74.11 -
DRAG SPECIALTIES Split Skull Derby Cover - Chrome 78044
DRAG SPECIALTIES
$85.44Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070550- SKU:
- 11070550
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MODEL:
- SPLIT SKULL
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING STYLE:
- 5 HOLE
- PRODUCT NAME:
- DERBY COVER
- TYPE:
- DERBY
$85.44 -
DRAG SPECIALTIES Split Skull Derby Cover - Black 78044B
DRAG SPECIALTIES
$78.23Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070551- SKU:
- 11070551
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MODEL:
- SPLIT SKULL
- TYPE:
- DERBY
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$78.23 -
DRAG SPECIALTIES Split Skull Derby Cover - Chrome 78046
DRAG SPECIALTIES
$77.20Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070552- SKU:
- 11070552
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MOUNTING STYLE:
- 5 HOLE
- MODEL:
- SPLIT SKULL
- TYPE:
- DERBY
$77.20 -
DRAG SPECIALTIES Split Skull Derby Cover - Black 78046B
DRAG SPECIALTIES
$77.20Split skull derby covers, Die-cast construction, Match other Drag Specialties Split Skull covers11070553- SKU:
- 11070553
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- DERBY
- MODEL:
- SPLIT SKULL
- COLOR/FINISH:
- BLACK
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- DERBY COVER
- UNITS:
- EACH
$77.20 -
DRAG SPECIALTIES Rear Wheel Sprocket - 46-Tooth - Black 16427EB
DRAG SPECIALTIES
$93.55High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101832- SKU:
- 12101832
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- MOUNTING POSITION:
- REAR
- OFFSET IMPERIAL:
- CENTERED
- STYLE:
- FLAT
- TYPE:
- DRIVE
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CARBON STEEL
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$93.55 -
DRAG SPECIALTIES Rear Wheel Sprocket - 48-Tooth - Black 19366EB
DRAG SPECIALTIES
$93.55High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101833- SKU:
- 12101833
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 48
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- STYLE:
- FLAT
- COLOR/FINISH:
- BLACK
- OFFSET IMPERIAL:
- CENTERED
- TYPE:
- DRIVE
- UNITS:
- EACH
$93.55 -
DRAG SPECIALTIES Rear Wheel Sprocket - 49-Tooth - Black 71891EB
DRAG SPECIALTIES
$93.55High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101834- SKU:
- 12101834
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- TYPE:
- DRIVE
- UNITS:
- EACH
- MATERIAL:
- CARBON STEEL
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
- MOUNTING POSITION:
- REAR
- OFFSET IMPERIAL:
- CENTERED
- RIDING STYLE:
- STREET
- STYLE:
- FLAT
$93.55 -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Black 71891DE
DRAG SPECIALTIES
$93.55High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101835- SKU:
- 12101835
- Availability:
- Ships Same Business Day
- Weight:
- 5.55 LBS
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 51
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- COLOR/FINISH:
- BLACK
- OFFSET IMPERIAL:
- CENTERED
- STYLE:
- FLAT
- TYPE:
- DRIVE
$93.55 -
DRAG SPECIALTIES Rear Wheel Sprocket - 46-Tooth - Black 19430EB
DRAG SPECIALTIES
$93.55High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101836- SKU:
- 12101836
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- DRIVE
- OFFSET IMPERIAL:
- 0.46'
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 46
- UNITS:
- EACH
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
$93.55 -
DRAG SPECIALTIES Rear Wheel Sprocket - 48-Tooth - Black 19217EB
DRAG SPECIALTIES
$87.31High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101837- SKU:
- 12101837
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- PRODUCT NAME:
- SPROCKET
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CARBON STEEL
- TOOTH COUNT:
- 48
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- OFFSET IMPERIAL:
- 0.46'
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- UNITS:
- EACH
$87.31 -
DRAG SPECIALTIES Rear Wheel Sprocket - 49-Tooth - Black 19432EB
DRAG SPECIALTIES
$90.43High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101838- SKU:
- 12101838
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- GLOSS
- OFFSET IMPERIAL:
- 0.46'
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CARBON STEEL
- MOUNTING POSITION:
- REAR
- TYPE:
- DRIVE
- UNITS:
- EACH
- PRODUCT NAME:
- SPROCKET
- TOOTH COUNT:
- 49
$90.43 -
DRAG SPECIALTIES Rear Wheel Sprocket - 51-Tooth - Black 19387EB
DRAG SPECIALTIES
$86.27High-grade carbon steel replacement rear wheel sprocket, 1.9" center hole12101839- SKU:
- 12101839
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- TOOTH COUNT:
- 51
- MATERIAL:
- CARBON STEEL
- PRODUCT NAME:
- SPROCKET
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- STYLE:
- DISHED
- TYPE:
- DRIVE
- CHAIN SIZE:
- 530
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- OFFSET IMPERIAL:
- 0.46'
- UNITS:
- EACH
$86.27Qty in Cart: 0Quantity:Price:$86.27Subtotal:
