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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ALTO PRODUCTS Carbonite Clutch 095750CC
ALTO PRODUCTS
$249.95Made from 3M™ carbon-based friction-based material to withstand higher coefficients of friction and higher temperatures than any other product available, Kolene® Melonite® treated steels for enhanced performance, engagement, longer life and cooler...11310752- SKU:
- 11310752
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- PRODUCT NAME:
- PLATE SET
- MODEL:
- CARBONITE POWERPAK
- DRIVE PLATE MATERIAL:
- STEEL
- FRICTION PLATE MATERIAL:
- CARBON FIBER
- TYPE:
- CLUTCH
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$249.95Qty in Cart: 0Quantity:Price:$249.95Subtotal: -
ALTO PRODUCTS Clutch Plate Kit - Steel 095759
ALTO PRODUCTS
$73.95High quality Red Eagle friction material11313331- SKU:
- 11313331
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CLUTCH PLATE
- MATERIAL:
- STEEL
- UNITS:
- KIT
$73.95 -
ALTO PRODUCTS M8 PowerPack‚® kit 095754B
ALTO PRODUCTS
$332.95G3 material provides higher torque capacity, improved shift and reduced clutch burnout, Available in extra-capacity PowerPack® or Screaming Eagle®, PowerPack contains: eight frictions, three Jutter frictions, nine steels and one Jutter steel, Screaming...11313559- SKU:
- 11313559
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE PLATE (STEEL PLATE)
- TYPE:
- FRICTION PLATE SET
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$332.95Qty in Cart: 0Quantity:Price:$332.95Subtotal: -
ALTO PRODUCTS M8 Screaming Eagle‚® kit 095754C
ALTO PRODUCTS
$305.95G3 material provides higher torque capacity, improved shift and reduced clutch burnout, Available in extra-capacity PowerPack® or Screaming Eagle®, PowerPack contains: eight frictions, three Jutter frictions, nine steels and one Jutter steel, Screaming...11313560- SKU:
- 11313560
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- TYPE:
- FRICTION PLATE SET
- RIDING STYLE:
- STREET
- TYPE:
- DRIVE PLATE (STEEL PLATE)
- DRIVE PLATE MATERIAL:
- STEEL
- PRODUCT NAME:
- CLUTCH KIT
- UNITS:
- KIT
$305.95Qty in Cart: 0Quantity:Price:$305.95Subtotal: -
ALLOY ART Inner Primary Plug - FXD/FXR MPP-1
ALLOY ART
$35.95Used when adding forward controls to FXD(92-05) & FXR(82-00) models and eliminating the mid shifter shaft, Plugs holes in inner primary cover for a finished look, Anodized billet aluminum, complete with O-rings, bolt and locking tab, Made in the U.S.A.11070073- SKU:
- 11070073
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- PLUG
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
$35.95 -
GARDNER-WESTCOTT Transmission Oil Fill Plug C-80-14
GARDNER-WESTCOTT
$21.95Show-chromed Allen-head plug includes oil level dipstick and O-ring, Made in the U.S.A.DS193860- SKU:
- DS193860
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- FILL PLUG
- TRANSMISSION TYPE:
- 5-SPEED
- TYPE:
- TRANSMISSION
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$21.95Qty in Cart: 0Quantity:Price:$21.95Subtotal: -
COVINGTONS Derby Cover - Black - 5 Hole C1875-B
COVINGTONS
$241.95A derby cover does more than protect your primary drive—it's a visible statement of craftsmanship and attention to detail. This Covington piece combines genuine functionality with the aggressive aesthetic of a ripper-style design, giving your bike's...11070683- SKU:
- 11070683
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- STYLE:
- RIPPER
- PRODUCT NAME:
- DERBY COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$241.95 -
COVINGTONS Derby Cover - Black - Dimpled C1075-B
COVINGTONS
$241.95CNC-machined from billet aluminum, Includes mounting hardware, Made in the U.S.A.11070490- SKU:
- 11070490
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- TYPE:
- DERBY
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- GLOSS
- STYLE:
- DIMPLED
$241.95Qty in Cart: 0Quantity:Price:$241.95Subtotal: -
COVINGTONS Transmission Cover C1365-B
COVINGTONS
$381.95CNC-machined from billet aluminum, Direct bolt-on replacement for the stock cover, Made in the U.S.A.11050255- SKU:
- 11050255
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- STYLE:
- DIMPLED
- UNITS:
- EACH
- TYPE:
- TRANSMISSION
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- TRANSMISSION TYPE:
- HYDRAULIC
$381.95 -
COVINGTONS Transmission Cover C1372-C
COVINGTONS
$317.95CNC machined from billet aluminum, Direct bolt-on replacement for the stock cover, Made in the U.S.A.11050206- SKU:
- 11050206
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- COVER
- TRANSMISSION TYPE:
- MECHANICAL
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- STYLE:
- SMOOTH
- COLOR/FINISH:
- CHROME
- MOUNTING STYLE:
- 6 HOLE
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION TOP
$317.95 -
COVINGTONS Transmission Cover C1371-C
COVINGTONS
$317.95CNC machined from billet aluminum, Direct bolt-on replacement for the stock cover, Made in the U.S.A.11050145- SKU:
- 11050145
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
- MOUNTING STYLE:
- 6 HOLE
- STYLE:
- DIMPLED
- TYPE:
- TRANSMISSION TOP
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MATERIAL:
- BILLET ALUMINUM
- TRANSMISSION TYPE:
- 6-SPEED
$317.95Qty in Cart: 0Quantity:Price:$317.95Subtotal: -
COVINGTONS Derby Cover - Black - Machine Head C1074-B
COVINGTONS
$216.95CNC-machined from billet aluminum, Includes mounting hardware, Made in the U.S.A.11070243- SKU:
- 11070243
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- TYPE:
- DERBY
- UNITS:
- EACH
- STYLE:
- MACHINE HEAD
- COLOR/FINISH:
- GLOSS
- RIDING STYLE:
- STREET
$216.95 -
COVINGTONS Derby Cover - Chrome - Machine Head C1074-C
COVINGTONS
$216.95A quality derby cover protects your engine's internal components from debris and moisture while maintaining a finished appearance on your machine. The Covingtons Machine Head derby cover combines precision machining with durable materials to deliver both...11070244- SKU:
- 11070244
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- DERBY
- UNITS:
- EACH
- STYLE:
- MACHINE HEAD
$216.95Qty in Cart: 0Quantity:Price:$216.95Subtotal: -
COVINGTONS Derby Cover - Diamond Edge - Machine Head C1074-D
COVINGTONS
$355.95A derby cover does more than protect your primary chaincase—it's a visual statement that separates a properly finished build from an incomplete one. The Covingtons Diamond Edge combines precision CNC machining with the clean aesthetics of a machine-head...11070245- SKU:
- 11070245
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- COLOR/FINISH:
- BLACK
- STYLE:
- MACHINE HEAD
- PRODUCT NAME:
- COVER
- TYPE:
- DERBY
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
$355.95 -
COVINGTONS Derby Cover - Black - Dimpled C1073-B
COVINGTONS
$216.95A quality derby cover protects your primary cover from road debris and UV exposure while adding a finished, custom appearance to your engine. The COVINGTONS Derby Cover delivers CNC-precision machining and durable billet construction, ensuring your...11070311- SKU:
- 11070311
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- GLOSS
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- TYPE:
- DERBY
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- MOUNTING STYLE:
- 5 HOLE
- RIDING STYLE:
- STREET
- STYLE:
- DIMPLED
$216.95Qty in Cart: 0Quantity:Price:$216.95Subtotal: -
On Sale
Belt Drives Ltd 3" Offset Pulley 48 Tooth for 1982-1994 Harley FXR 48-OFP
BELT DRIVES LTD.
MSRP: $258.00Now: $178.16Was: $258.00Proper belt alignment is critical for maximizing drivetrain efficiency and extending component lifespan on your FXR. This 48-tooth offset pulley delivers precision fitment for 3" belt systems while maintaining the exact spacing your motor demands. Belt...DS360422- SKU:
- DS360422
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- TOOTH COUNT:
- 48
- UNITS:
- EACH
- PRODUCT NAME:
- PULLEY
- RIDING STYLE:
- STREET
- TYPE:
- MOTOR SHAFT
MSRP: $258.00Now: $178.16Was: $258.00 -
On Sale
Belt Drives Ltd Offset Spacer 1/2" for Harley-Davidson 1985-2006 IN-500
BELT DRIVES LTD.
MSRP: $136.15Now: $93.56Was: $136.15Proper pulley alignment is critical to belt drive longevity and performance—misalignment accelerates wear and reduces power transfer efficiency. This offset spacer ensures your motor pulley sits in perfect alignment with your primary drive, eliminating...DS360425- SKU:
- DS360425
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
- PRODUCT NAME:
- SPACER INSERT
- RIDING STYLE:
- STREET
- TYPE:
- PULLEY
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
MSRP: $136.15Now: $93.56Was: $136.15 -
On Sale
Belt Drives Ltd 3/4" Offset Spacer Insert for Harley-Davidson 1996-2006 FLHTCI Electra Glide Classic IN-750
BELT DRIVES LTD.
MSRP: $136.15Now: $93.56Was: $136.15Proper pulley alignment is critical to belt drive longevity and efficiency on your Harley-Davidson. A misaligned motor pulley accelerates belt wear, reduces power transfer, and can lead to costly replacements. This precision offset spacer insert corrects...DS360426- SKU:
- DS360426
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- PRODUCT NAME:
- SPACER INSERT
- RIDING STYLE:
- STREET
- TYPE:
- PULLEY
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
MSRP: $136.15Now: $93.56Was: $136.15 -
On Sale
Belt Drives Ltd. 1" Offset Spacer with Screws and Nut for Harley-Davidson 1985-2006 FLHRS Road King Custom IN-1000
BELT DRIVES LTD.
MSRP: $136.15Now: $93.56Was: $136.15Precise pulley alignment is critical to belt drive longevity and efficient power transfer—misalignment accelerates wear and robs you of performance. The Belt Drives Ltd. 1" Offset Spacer corrects runout issues and ensures your motor pulley tracks true,...DS360427- SKU:
- DS360427
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- TYPE:
- PULLEY
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- SPACER INSERT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $136.15Now: $93.56Was: $136.15 -
On Sale
Belt Drives Ltd Offset Spacer 1-1/4" for Harley-Davidson FLH 1985-2006 IN-1250
BELT DRIVES LTD.
MSRP: $136.15Now: $93.56Was: $136.15Proper pulley alignment is critical for belt longevity and drivetrain efficiency—misalignment accelerates wear and compromises power transfer. The Belt Drives Ltd Offset Spacer corrects motor pulley runout with precision adjustment, ensuring your belt...DS360428- SKU:
- DS360428
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- SPACER INSERT
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- PULLEY
MSRP: $136.15Now: $93.56Was: $136.15
