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 130 Tooth 8mm x 41mm Primary Drive Belt BDL-130K
BELT DRIVES LTD.
MSRP: $189.38Now: $140.36Was: $189.38A worn or damaged primary drive belt compromises the entire efficiency of your BDL system, leading to slippage, power loss, and potential drivetrain damage. The BDL-130K Replacement Belt restores precision fit and load capacity, ensuring consistent power...DS360430- SKU:
- DS360430
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- RIDING STYLE:
- STREET
- TOOTH COUNT:
- 130
- UNITS:
- EACH
- STYLE:
- RIBBED
- PRODUCT NAME:
- DRIVE BELT
- TYPE:
- PRIMARY
- WIDTH IMPERIAL:
- 1-5/8'
MSRP: $189.38Now: $140.36Was: $189.38Qty in Cart: 0Quantity:Price:MSRP: $189.38Now: $140.36Was: $189.38Subtotal: -
On Sale
Belt Drives Ltd 8mm Primary Drive Belt 138 Teeth for 1970-1983 Harley-Davidson Touring BDL-138-38K
BELT DRIVES LTD.
MSRP: $184.62Now: $135.86Was: $184.62If you're running a BDL primary drive on your classic Harley-Davidson Touring, belt wear is inevitable—and when it happens, you need a direct replacement that matches the original's precision engineering. The Belt Drives Ltd 8mm Primary Drive Belt...23021252- SKU:
- 23021252
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- DRIVE BELT
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- STYLE:
- RIBBED
- TOOTH COUNT:
- 138
- TYPE:
- PRIMARY
MSRP: $184.62Now: $135.86Was: $184.62 -
On Sale
Belt Drives Ltd 3" 8mm Belt Drive with Clutch for 1965-1984 Harley-Davidson Shovelhead FLH Electra Glide EV-76-47S
BELT DRIVES LTD.
MSRP: $1,533.85Now: $1,058.36Was: $1,533.85If you're running a classic Shovelhead and tired of chain maintenance, noise, and power loss, a modern belt drive system is the single most practical upgrade you can make. Belt Drives Ltd's 3" 8mm system delivers reliable power transfer with virtually...23021263- SKU:
- 23021263
- Availability:
- Ships Same Business Day
- Weight:
- 18.50 LBS
- MATERIAL:
- 6061 T-6 BILLET ALUMINUM
- MATERIAL:
- STEEL
- WIDTH IMPERIAL:
- 3'
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
MSRP: $1,533.85Now: $1,058.36Was: $1,533.85 -
On Sale
Belt Drives Ltd 11mm Belt Drive Kit for Harley-Davidson FLH Electra Glide 1979-1983 47-31SE-RB
BELT DRIVES LTD.
MSRP: $693.95Now: $624.56Was: $693.95If you're running a 1979-1983 FLH Electra Glide, a belt drive upgrade replaces the factory chain with a cleaner, quieter, and more reliable power transfer system that requires less maintenance and delivers consistent performance mile after mile. This...23025001- SKU:
- 23025001
- Availability:
- Ships Same Business Day
- Weight:
- 11.40 LBS
- UNITS:
- KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- BELT DRIVE KIT
- WIDTH IMPERIAL:
- 1-1/2'
MSRP: $693.95Now: $624.56Was: $693.95Qty in Cart: 0Quantity:Price:MSRP: $693.95Now: $624.56Was: $693.95Subtotal: -
On Sale
Belt Drives Ltd Inner Primary Spacer for Harley-Davidson Softail 1986-2006 PS-250
BELT DRIVES LTD.
MSRP: $73.38Now: $51.26Was: $73.38If you're running a fat tire setup or wide frame configuration on your Softail, primary alignment directly impacts drivetrain efficiency and longevity. This inner primary spacer closes the gap between your motor and primary cover, eliminating bind and...22145001- SKU:
- 22145001
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SPACER
- UNITS:
- EACH
- COLOR/FINISH:
- POLISHED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
- WIDTH IMPERIAL:
- 1/4'
MSRP: $73.38Now: $51.26Was: $73.38 -
On Sale
Belt Drives Ltd Inner Primary Spacer for Harley Davidson FLH Electra Glide 1985 PS-750
BELT DRIVES LTD.
MSRP: $104.15Now: $71.96Was: $104.15If you're running fat tires or a wide frame setup on your Harley FLH Electra Glide, clearance between the inner primary and motor becomes critical—and improper spacing leads to binding, noise, and premature wear. The Belt Drives Ltd Inner Primary Spacer...22145003- SKU:
- 22145003
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- POLISHED
- UNITS:
- EACH
- PRODUCT NAME:
- SPACER
- WIDTH IMPERIAL:
- 3/4'
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- INNER PRIMARY
MSRP: $104.15Now: $71.96Was: $104.15 -
On Sale
Belt Drives Ltd Rear Drive Belt 125-Tooth 1 1/2" Harley-Davidson 1996-2003 PCCB-125
BELT DRIVES LTD.
MSRP: $435.54Now: $322.16Was: $435.54If you're running wider tires or pushing your Big Twin harder than stock, your OEM belt wasn't designed for what you're asking of it. This 125-tooth polyurethane drive belt delivers the torque capacity and durability needed for aggressive builds, while...12040115- SKU:
- 12040115
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- PRODUCT NAME:
- BELT
- TOOTH COUNT:
- 125
- WIDTH IMPERIAL:
- 1-1/2'
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- MATERIAL:
- X7N CARBON
MSRP: $435.54Now: $322.16Was: $435.54 -
On Sale
Belt Drives Ltd Clutch Basket for Top Fuel 1990-2006 Softail TFRP-46
BELT DRIVES LTD.
MSRP: $998.47Now: $847.76Was: $998.47If you're running a vintage Softail in top fuel racing, clutch basket reliability isn't optional—it's survival. The Belt Drives Ltd TFRP-46 delivers the precision machining and durability required to handle sustained high-RPM loads without failure. Built...11200042- SKU:
- 11200042
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- NUMBER OF TEETH:
- 46
- PRODUCT NAME:
- CLUTCH BASKET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $998.47Now: $847.76Was: $998.47Qty in Cart: 0Quantity:Price:MSRP: $998.47Now: $847.76Was: $998.47Subtotal: -
On Sale
Belt Drives Ltd Rear Pulley Cover for Softail 1990-2006 TFRPC-2000
BELT DRIVES LTD.
MSRP: $180.00Now: $124.16Was: $180.00If you're running a BDL belt drive clutch on your Softail, protecting that investment matters. The TFRPC-2000 rear pulley cover shields your drivetrain from road debris and wear while maintaining the clean lines of your build. This is the functional...11200044- SKU:
- 11200044
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- PRODUCT NAME:
- REAR PULLEY COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
MSRP: $180.00Now: $124.16Was: $180.00 -
On Sale
Belt Drives Ltd 140 Tooth 2 Inch Wide Primary Drive Belt for Harley-Davidson Touring 2009-2016 BDL-140-2
BELT DRIVES LTD.
MSRP: $211.85Now: $156.56Was: $211.85Primary drive belts are critical wear items that directly impact power delivery and ride quality on your Harley-Davidson touring rig. The BDL-140-2 replacement belt maintains the precise tension and engagement that your primary drive system demands,...11200095- SKU:
- 11200095
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
- STYLE:
- RIBBED
- UNITS:
- EACH
- PRODUCT NAME:
- DRIVE BELT
- TOOTH COUNT:
- 140
- TYPE:
- PRIMARY
MSRP: $211.85Now: $156.56Was: $211.85 -
On Sale
Belt Drives Ltd Shoulder Bolts 3/8 x 3/4 for 2004 Harley-Davidson Heritage Softail 1120-0101
BELT DRIVES LTD.
MSRP: $30.77Now: $20.66Was: $30.77BDL Belt Drive clutches demand precision fasteners that won't compromise under load or corrode over time. These stainless steel shoulder bolts maintain clamping force and structural integrity through repeated engagement cycles, eliminating the risk of...11200101- SKU:
- 11200101
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- DIAMETER:
- 9,5 MM (3/8')
- LENGTH IMPERIAL:
- 3/4'
- PRODUCT NAME:
- SHOULDER BOLT
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- LENGTH:
- 19,1 MM (3/4')
- UNITS:
- 4 PACK
MSRP: $30.77Now: $20.66Was: $30.77 -
On Sale
Belt Drives Ltd. Monster Top Fuel Belt Drive Kit for Harley-Davidson Softail 1990-2006 TF-2000
BELT DRIVES LTD.
MSRP: $4,676.92Now: $3,455.96Was: $4,676.92If you're running a high-performance Softail and want to eliminate the complexity of chain maintenance while gaining reliable power delivery, the Belt Drives Ltd. Monster Top Fuel Belt Drive Kit delivers the efficiency and durability that separates...11200173- SKU:
- 11200173
- Availability:
- Ships Same Business Day
- Weight:
- 51.60 LBS
- MATERIAL:
- STEEL
- UNITS:
- KIT
- MODEL:
- MONSTER
- PRODUCT NAME:
- BELT DRIVE KIT
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
MSRP: $4,676.92Now: $3,455.96Was: $4,676.92 -
On Sale
Belt Drives Ltd 2" Belt Drive Kit for Harley Softail 1990-2006 Black EV-700B
BELT DRIVES LTD.
MSRP: $4,731.38Now: $3,496.46Was: $4,731.38If you're running a Softail and tired of stock belt-drive compromises, the Belt Drives Ltd EV-700B delivers the durability and customization you need without sacrificing reliability. The all-billet construction handles increased load and vibration while...11200320- SKU:
- 11200320
- Availability:
- Ships Same Business Day
- Weight:
- 18.10 LBS
- TOOTH COUNT:
- 142
- MATERIAL:
- BILLET ALUMINUM
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- BELT DRIVE KIT
- WIDTH IMPERIAL:
- 2'
MSRP: $4,731.38Now: $3,496.46Was: $4,731.38 -
On Sale
Belt Drives Ltd Clutch Adjuster Screw with Jam Nut for 1990-Up Models CDAS-100A
BELT DRIVES LTD.
MSRP: $39.08Now: $26.96Was: $39.08Precise clutch adjustment is critical for consistent engagement and consistent power delivery—especially in high-performance applications where even minor slippage costs you time and reliability. This Belt Drives Ltd clutch adjuster screw eliminates...11200321- SKU:
- 11200321
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- ADJUSTING SCREW
- TYPE:
- CLUTCH
MSRP: $39.08Now: $26.96Was: $39.08 -
On Sale
Belt Drives Ltd Motor Plate Bearing for 1990-2006 Harley-Davidson Softail FXST MPB-9
BELT DRIVES LTD.
MSRP: $116.00Now: $80.06Was: $116.00If you're running a BDL Belt Drive clutch system on your Softail, the Motor Plate Bearing MPB-9 is critical to maintaining smooth engagement and reliable power transfer. Worn or inadequate bearings introduce friction, noise, and premature...11200322- SKU:
- 11200322
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- BEARING
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $116.00Now: $80.06Was: $116.00 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2015 Harley-Davidson Touring TC2PB-2-B
BELT DRIVES LTD.
MSRP: $4,372.92Now: $3,231.86Was: $4,372.92If you're running high-horsepower on your 2007-2015 Touring model, belt slippage and power loss are real concerns. Belt Drives Ltd's 2" open belt drive kit eliminates those weaknesses with a precision-engineered two-piece motor plate and matched pulley...11200355- SKU:
- 11200355
- Availability:
- Ships Same Business Day
- Weight:
- 37.30 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- SIZE IMPERIAL:
- 2'
- TOOTH COUNT:
- 69
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- WIDTH IMPERIAL:
- 2'
MSRP: $4,372.92Now: $3,231.86Was: $4,372.92 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit Chrome 2007-2013 Harley-Davidson Street Glide FLHX TC2PB-2-C
BELT DRIVES LTD.
MSRP: $4,664.00Now: $3,446.96Was: $4,664.00If you're running high-horsepower on your Street Glide, your stock belt drive isn't built for sustained performance. Belt Drives Ltd's 2" open belt kit delivers the engagement precision and thermal stability your engine demands, while the chrome finish...11200356- SKU:
- 11200356
- Availability:
- Ships Same Business Day
- Weight:
- 39.10 LBS
- UNITS:
- KIT
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- POLISHED
- TOOTH COUNT:
- 69
- SIZE IMPERIAL:
- 2'
MSRP: $4,664.00Now: $3,446.96Was: $4,664.00 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit Black 2014-2016 Harley-Davidson FLHTCU TC2PBH-2-B
BELT DRIVES LTD.
MSRP: $4,392.92Now: $3,247.16Was: $4,392.92If you're running a high-performance motor in your 2014-2016 FLHTCU, belt drive efficiency directly impacts throttle response and overall power delivery. Belt Drives Ltd's 2" Open Belt Drive Kit delivers a proven 1.32:1 final drive ratio that maximizes...11200357- SKU:
- 11200357
- Availability:
- Ships Same Business Day
- Weight:
- 36.98 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- SIZE IMPERIAL:
- 2'
- TOOTH COUNT:
- 69
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- WIDTH IMPERIAL:
- 2'
MSRP: $4,392.92Now: $3,247.16Was: $4,392.92 -
On Sale
Belt Drives Ltd 2in Open Belt Drive Kit Black 2007-2017 Harley-Davidson Softail TC2PS-2-B
BELT DRIVES LTD.
MSRP: $4,439.08Now: $3,280.46Was: $4,439.08If you're running serious horsepower on your Softail, your drivetrain needs to match that output. The Belt Drives Ltd 2" Open Belt Drive Kit delivers the precision engineering and reliability that high-performance motors demand, while the open design...11200359- SKU:
- 11200359
- Availability:
- Ships Same Business Day
- Weight:
- 16.35 LBS
- UNITS:
- KIT
- SIZE IMPERIAL:
- 2'
- TOOTH COUNT:
- 69
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- BELT DRIVE KIT
- RIDING STYLE:
- STREET
- WIDTH IMPERIAL:
- 2'
MSRP: $4,439.08Now: $3,280.46Was: $4,439.08 -
On Sale
Belt Drives Ltd 2" Open Belt Drive Kit for 2017-2020 Harley-Davidson Touring Models EVO-16BH-2C
BELT DRIVES LTD.
MSRP: $4,186.95Now: $3,768.26Was: $4,186.95If you're running a high-horsepower build on your Touring model, your factory drive system has limits. The Belt Drives Ltd EVO-16BH-2C delivers the reliability and engagement needed for serious power while keeping the classic open belt aesthetic that...11200400- SKU:
- 11200400
- Availability:
- Ships Same Business Day
- Weight:
- 42.03 LBS
- COLOR/FINISH:
- CHROME
- SIZE IMPERIAL:
- 2'
- PRODUCT NAME:
- BELT DRIVE KIT
- TOOTH COUNT:
- 52
- TOOTH COUNT:
- 69
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- PRIMARY BELT DRIVE
- UNITS:
- KIT
MSRP: $4,186.95Now: $3,768.26Was: $4,186.95Qty in Cart: 0Quantity:Price:MSRP: $4,186.95Now: $3,768.26Was: $4,186.95Subtotal:
