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
Belt Drives Ltd Starter Housing for 1990-2006 Harley Davidson Softail TFSH-100
BELT DRIVES LTD.
MSRP: $159.85Now: $109.76Was: $159.85If you're running a BDL Belt Drive clutch system on your Softail, the starter housing is your foundation for reliable power transfer and consistent engagement under high RPM loading. A quality housing eliminates slip, vibration, and premature...11200047- SKU:
- 11200047
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- HOUSING
MSRP: $159.85Now: $109.76Was: $159.85 -
On Sale
Belt Drives Ltd 9T Starter Pinion Gear for 1996-2006 Harley Davidson FLHR Road King PG-100A
BELT DRIVES LTD.
MSRP: $204.77Now: $141.26Was: $204.77If you're running a BDL Belt Drive clutch system on your Road King, you need a pinion gear that can handle the demands of real-world riding without compromise. The Belt Drives Ltd PG-100A is precision-machined to ensure consistent power transfer and...11200057- SKU:
- 11200057
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- LENGTH METRIC:
- 115.8 MM
- PRODUCT NAME:
- PINION GEAR
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 9
- UNITS:
- KIT
- LENGTH IMPERIAL:
- 4-9/16'
- LENGTH:
- 115,8 MM (4-9/16')
MSRP: $204.77Now: $141.26Was: $204.77 -
On Sale
Belt Drives Ltd 2" SS Belt Drive Without Cover 1990-2006 Harley-Davidson Softail SS-2
BELT DRIVES LTD.
MSRP: $2,937.38Now: $2,170.76Was: $2,937.38If you're running a 1990-2006 Harley-Davidson Softail and want to eliminate the friction and wear of traditional clutch dogs, this Belt Drives Ltd stainless steel belt drive delivers the smoother engagement and reduced maintenance you need. The one-piece...11200082- SKU:
- 11200082
- Availability:
- Ships Same Business Day
- Weight:
- 36.20 LBS
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT DRIVE KIT
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 2'
MSRP: $2,937.38Now: $2,170.76Was: $2,937.38 -
On Sale
Belt Drives Ltd Primary Chain Drive Kit with Ball-Bearing Lockup Clutch for 1990-2006 Harley-Davidson Softail and Dyna Models CDBCS-1-90
BELT DRIVES LTD.
MSRP: $1,755.08Now: $1,210.46Was: $1,755.08The stock primary drive in your 1990-2006 Softail or Dyna wastes power and demands excessive clutch effort—especially if you're pushing your engine's performance envelope. The Belt Drives Ltd Primary Chain Drive Kit replaces that compromise with a...11200179- SKU:
- 11200179
- Availability:
- Ships Same Business Day
- Weight:
- 23.35 LBS
- RIDING STYLE:
- STREET
- FEATURES:
- INCLUDES COMPENSATOR
- UNITS:
- KIT
- TOOTH COUNT:
- 25
- PRODUCT NAME:
- PRIMARY CHAIN DRIVE KIT
MSRP: $1,755.08Now: $1,210.46Was: $1,755.08 -
On Sale
Belt Drives Ltd 3" Belt Drive Kit for 1990-2006 Harley-Davidson Softail Models EVOB-9S
BELT DRIVES LTD.
MSRP: $3,269.85Now: $2,416.46Was: $3,269.85A quality belt drive system directly impacts your Softail's reliability, efficiency, and rideability. The Belt Drives Ltd. EVOB-9S eliminates the maintenance headaches of chain systems while delivering smooth, quiet power delivery to the rear wheel—no...11200251- SKU:
- 11200251
- Availability:
- Ships Same Business Day
- Weight:
- 38.10 LBS
- MATERIAL:
- KEVLAR
- PRODUCT NAME:
- BELT DRIVE KIT
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- MATERIAL:
- STEEL
- WIDTH IMPERIAL:
- 3'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $3,269.85Now: $2,416.46Was: $3,269.85 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit for 1990-2006 Harley-Davidson Softail EV-575
BELT DRIVES LTD.
MSRP: $3,113.69Now: $2,301.26Was: $3,113.69If you're running a Softail and want genuine power transfer improvement without compromise, a quality belt drive system isn't optional—it's essential. The Belt Drives Ltd EV-575 delivers measurable performance gains through its ball-bearing lockup clutch...11200226- SKU:
- 11200226
- Availability:
- Ships Same Business Day
- Weight:
- 34.30 LBS
- COLOR/FINISH:
- CHROME
- TOOTH COUNT:
- 142
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- KEVLAR
- STYLE:
- RIBBED
- UNITS:
- KIT
MSRP: $3,113.69Now: $2,301.26Was: $3,113.69 -
On Sale
Belt Drives Ltd Belt Drive Kit for 1955-1964 Harley-Davidson Models 61-39SK-2
BELT DRIVES LTD.
MSRP: $764.62Now: $565.16Was: $764.62If you're running a kick-start Harley from the classic era, your primary drive system needs to handle sustained torque without compromise. Belt Drives Ltd's purpose-built kit replaces worn or inadequate stock components with precision-engineered pulley...11200423- SKU:
- 11200423
- Availability:
- Ships Same Business Day
- Weight:
- 8.15 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
MSRP: $764.62Now: $565.16Was: $764.62 -
On Sale
Belt Drives Ltd Inner Primary Spacer for Harley-Davidson 1984-2006 PS-500
BELT DRIVES LTD.
MSRP: $87.69Now: $60.26Was: $87.69If you're running fat tires or a wide frame setup on your Harley, the inner primary gap becomes a visual and functional liability. The Belt Drives Ltd Inner Primary Spacer PS-500 closes that gap with precision-engineered spacing, eliminating the sloppy...22145002- SKU:
- 22145002
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- POLISHED
- PRODUCT NAME:
- SPACER
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
- WIDTH IMPERIAL:
- 1/2'
MSRP: $87.69Now: $60.26Was: $87.69 -
On Sale
Belt Drives Ltd 1-1/4" Inner Primary Spacer for 1984-2006 Harley-Davidson Models PS-1250
BELT DRIVES LTD.
MSRP: $137.95Now: $124.16Was: $137.95If you're running fat tires or a wide frame setup on your Harley, proper primary alignment is critical for smooth power delivery and long-term reliability. The Belt Drives Ltd Inner Primary Spacer ensures your inner primary sits flush against the motor,...22145005- SKU:
- 22145005
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- SPACER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/4'
- TYPE:
- INNER PRIMARY
MSRP: $137.95Now: $124.16Was: $137.95Qty in Cart: 0Quantity:Price:MSRP: $137.95Now: $124.16Was: $137.95Subtotal: -
On Sale
Belt Drives Ltd Inner Primary Spacer for Harley-Davidson Softail 2001-2006 PS-1500
BELT DRIVES LTD.
MSRP: $202.46Now: $139.46Was: $202.46When running fat tires and wide frames on your Softail, precise primary alignment is critical—even minor spacing irregularities can cause belt wear, vibration, and premature component failure. The Belt Drives Ltd Inner Primary Spacer PS-1500 maintains...22145006- SKU:
- 22145006
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- TYPE:
- INNER PRIMARY
- WIDTH IMPERIAL:
- 1-1/2'
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER
MSRP: $202.46Now: $139.46Was: $202.46 -
On Sale
Belt Drives Ltd Rear Drive Belt 132-Tooth 1-1/8in for 1986-1994 Harley-Davidson Softail PCC-132-118
BELT DRIVES LTD.
MSRP: $307.69Now: $239.36Was: $307.69A worn or failing rear drive belt compromises power transfer and reliability—critical concerns for any Harley-Davidson Softail owner pushing performance or covering serious miles. This Gates carbon X3N belt delivers the durability and precision fitment...12040118- SKU:
- 12040118
- Availability:
- Ships Same Business Day
- Weight:
- 1.98 LBS
- TOOTH COUNT:
- 132
- MATERIAL:
- X7N CARBON
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/8'
- PRODUCT NAME:
- BELT
- TYPE:
- DRIVE
- UNITS:
- EACH
MSRP: $307.69Now: $239.36Was: $307.69 -
On Sale
Belt Drives Ltd Rear Drive Belt 132-Tooth 1-1/2" Harley-Davidson Softail 1986-1994 PCCB-132
BELT DRIVES LTD.
MSRP: $383.54Now: $296.06Was: $383.54A worn or damaged drive belt compromises the entire drivetrain efficiency of your Softail, leading to slippage, increased wear on pulleys, and potential catastrophic failure at highway speeds. The BDL Rear Drive Belt delivers the durability and precision...12040125- SKU:
- 12040125
- Availability:
- Ships Same Business Day
- Weight:
- 2.36 LBS
- TOOTH COUNT:
- 132
- UNITS:
- EACH
- PRODUCT NAME:
- BELT
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
- MATERIAL:
- X7N CARBON
- TYPE:
- DRIVE
MSRP: $383.54Now: $296.06Was: $383.54 -
On Sale
Belt Drives Ltd Rear Drive Belt 130-Tooth 1 1/2" 1995-1999 Harley-Davidson Softail PCCB-130
BELT DRIVES LTD.
MSRP: $363.38Now: $281.66Was: $363.38A worn or failing drive belt compromises power delivery and increases wear on your entire drivetrain. The Belt Drives Ltd Premium Rear Drive Belt delivers the durability and precision your Softail demands, engineered with Gates carbon X3N material to...12040127- SKU:
- 12040127
- Availability:
- Ships Same Business Day
- Weight:
- 2.29 LBS
- TYPE:
- DRIVE
- UNITS:
- EACH
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
- MATERIAL:
- X7N CARBON
MSRP: $363.38Now: $281.66Was: $363.38 -
On Sale
Belt Drives Ltd Rear Drive Belt 133-Tooth 1 1/2" 1993-1999 Harley-Davidson FXD PCCB-133
BELT DRIVES LTD.
MSRP: $430.77Now: $317.66Was: $430.77A properly functioning rear drive belt is critical to maintaining consistent power delivery and preventing catastrophic drivetrain failure on your FXD. Belt Drives Ltd's 133-tooth design delivers the torque capacity your motorcycle demands, while the...12040128- SKU:
- 12040128
- Availability:
- Ships Same Business Day
- Weight:
- 2.36 LBS
- MATERIAL:
- X7N CARBON
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 1-1/2'
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 133
- UNITS:
- EACH
MSRP: $430.77Now: $317.66Was: $430.77 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2017 Harley-Davidson Softail and Dyna Models EVO-8S-2
BELT DRIVES LTD.
MSRP: $3,033.95Now: $2,730.56Was: $3,033.95If you're running an EVO engine in your Softail or Dyna, your stock clutch is leaving power on the table. Belt Drives Ltd's open belt drive kit replaces that worn-out assembly with a precision-engineered system that delivers 60% more surface contact...11200229- SKU:
- 11200229
- Availability:
- Ships Same Business Day
- Weight:
- 34.85 LBS
- STYLE:
- RIBBED
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- KEVLAR
- PRODUCT NAME:
- BELT DRIVE KIT
- TOOTH COUNT:
- 142
MSRP: $3,033.95Now: $2,730.56Was: $3,033.95Qty in Cart: 0Quantity:Price:MSRP: $3,033.95Now: $2,730.56Was: $3,033.95Subtotal: -
On Sale
Belt Drives Ltd 14mm 1-1/2in Primary Belt 69T Harley-Davidson 1985-1996 FLH FLT FXR PCC-69-112
BELT DRIVES LTD.
MSRP: $236.95Now: $213.26Was: $236.95Primary belt wear is one of the most common failure points in Harley big-twin drives—and a worn belt will rob you of power transfer efficiency and create unpredictable drivetrain behavior. The PCC-69-112 from Belt Drives Ltd. is a direct replacement...DS360016- SKU:
- DS360016
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- STYLE:
- RIBBED
- TYPE:
- PRIMARY
- PRODUCT NAME:
- DRIVE BELT
- TOOTH COUNT:
- 69
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $236.95Now: $213.26Was: $236.95Qty in Cart: 0Quantity:Price:MSRP: $236.95Now: $213.26Was: $236.95Subtotal: -
On Sale
Belt Drives Ltd Offset Spacer 1/4" for Harley-Davidson 1985-2006 FLHR Road King IN-250
BELT DRIVES LTD.
MSRP: $136.15Now: $93.56Was: $136.15Pulley misalignment is a silent killer of belt drive efficiency—it accelerates wear, increases vibration, and robs your Road King of smooth power delivery. The Belt Drives Ltd Offset Spacer corrects this fundamental issue with precision engineering,...DS360424- SKU:
- DS360424
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER INSERT
- RIDING STYLE:
- STREET
- TYPE:
- PULLEY
MSRP: $136.15Now: $93.56Was: $136.15Qty in Cart: 0Quantity:Price:MSRP: $136.15Now: $93.56Was: $136.15Subtotal: -
On Sale
Belt Drives Ltd 8mm 3" Primary Belt Drive Kick Start Spline Shaft 1955-1984 76-47-3S
BELT DRIVES LTD.
MSRP: $903.08Now: $622.76Was: $903.08A reliable primary belt drive is fundamental to smooth power delivery and consistent clutch engagement on classic Harley-Davidson and similar platforms. This Belt Drives Ltd kit delivers the durability and precision fit that serious riders demand, with...DS360113- SKU:
- DS360113
- Availability:
- Ships Same Business Day
- Weight:
- 11.90 LBS
- WIDTH IMPERIAL:
- 3'
- TOOTH COUNT:
- 144
- UNITS:
- KIT
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
MSRP: $903.08Now: $622.76Was: $903.08 -
On Sale
Belt Drives Ltd Transmission Pulley 32T for Harley-Davidson Softail Custom FXSTC 1986-1999 TP-32
BELT DRIVES LTD.
MSRP: $265.23Now: $182.66Was: $265.23Upgrading to a lighter transmission pulley directly improves throttle response and reduces parasitic drag on your engine—critical gains for any Big Twin build. The Belt Drives Ltd TP-32 sheds one-third of the weight carried by stock pulleys while...DS360167- SKU:
- DS360167
- Availability:
- Ships Same Business Day
- Weight:
- 3.06 LBS
- RIDING STYLE:
- STREET
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- TOOTH COUNT:
- 32
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- PULLEY
MSRP: $265.23Now: $182.66Was: $265.23Qty in Cart: 0Quantity:Price:MSRP: $265.23Now: $182.66Was: $265.23Subtotal: -
On Sale
ARLEN NESS Transmission Cover - Black 03-823
ARLEN NESS
MSRP: $179.95Now: $163.75Was: $179.95The ARLEN NESS Transmission Cover replaces worn or damaged OEM covers while maintaining the clean aesthetic of your Harley's drivetrain. This precision-engineered cover protects critical hydraulic components and is available in both hydraulic and...11050110- SKU:
- 11050110
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- MOUNTING STYLE:
- 6 HOLE
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK ANODIZED
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- RAW
- STYLE:
- 10 GAUGE
- TYPE:
- TRANSMISSION
MSRP: $179.95Now: $163.75Was: $179.95
