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Harley Primary Drive Systems and Parts

Harley Primary Drive Systems and Parts

Harley Primary Drive Systems and Parts

Harley-Davidson Primary Drive Systems & Parts at JJ Motorsports

Upgrade your Harley's primary drive with premium belt drive systems and components from JJ Motorsports, featuring high-strength pulleys, replacement belts, and complete kits for smoother power transfer, reduced maintenance, and classic open-primary style on Evo, Twin Cam, and Big Twin models. These durable parts deliver reliable performance and timeless looks.

Shop Belt Drives Ltd primary systems for race-proven quality. Explore related categories such as Harley drivetrain for clutches and chains, or Harley for exhaust and suspension to complete your open-primary build.

Top Harley-Davidson Primary Drive Systems & Parts

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Belt Drives Ltd Clutch Adjuster Screw with Jam Nut for 1990-Up Models CDAS-100A

    Belt Drives Ltd Clutch Adjuster Screw with Jam Nut for 1990-Up Models CDAS-100A

    BELT DRIVES LTD.

    $29.95
    Enhance your clutch performance with the BELT DRIVES LTD. Clutch Adjuster Screw. Designed for precision and durability, this component ensures optimal adjustment and reliability in your drive system. Each unit includes a hex jam nut and O-rings for a...
    11200321
    SKU:
    11200321
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PRODUCT NAME:
    ADJUSTING SCREW
    TYPE:
    CLUTCH
    $29.95
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • Belt Drives Ltd Motor Plate Bearing for 1990-2006 Harley-Davidson Softail FXST MPB-9

    Belt Drives Ltd Motor Plate Bearing for 1990-2006 Harley-Davidson Softail FXST MPB-9

    BELT DRIVES LTD.

    $88.95
    The Motor Plate Bearing MPB-9 is designed specifically for BDL Belt Drive clutches, ensuring optimal performance and longevity. This high-quality bearing provides smooth operation and reliability, making it an essential component for your belt drive...
    11200322
    SKU:
    11200322
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $88.95
    Qty in Cart: 0
    Quantity:
    Price:
    $88.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2015 Harley-Davidson Touring TC2PB-2-B Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2015 Harley-Davidson Touring TC2PB-2-B

    Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2015 Harley-Davidson Touring TC2PB-2-B

    BELT DRIVES LTD.

    $3,590.95
    Experience superior performance with the BELT DRIVES LTD. 2" Drive Belt, designed for high-horsepower motors. Its innovative two-piece motor plate and precision-engineered pulleys ensure optimal power transfer and a sleek aesthetic for your ride. ...
    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'
    $3,590.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,590.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit Chrome 2007-2013 Harley-Davidson Street Glide FLHX TC2PB-2-C

    Belt Drives Ltd 2" Open Belt Drive Kit Chrome 2007-2013 Harley-Davidson Street Glide FLHX TC2PB-2-C

    BELT DRIVES LTD.

    $3,829.95
    Experience unparalleled performance with the Belt Drives Ltd. 2" Drive Belt, designed specifically for high-horsepower applications. This innovative system features a two-piece motor plate and a unique pulley configuration, ensuring optimal engagement...
    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'
    $3,829.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,829.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit Black 2014-2016 Harley-Davidson FLHTCU TC2PBH-2-B

    Belt Drives Ltd 2" Open Belt Drive Kit Black 2014-2016 Harley-Davidson FLHTCU TC2PBH-2-B

    BELT DRIVES LTD.

    $3,607.95
    Experience superior performance with the BELT DRIVES LTD. 2" Drive Belt, designed for optimal efficiency and style. This advanced drive belt system features a unique two-piece motor plate and a specific pulley combination, ensuring a precise 1.32:1 final...
    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'
    $3,607.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,607.95
    Subtotal:
  • Belt Drives Ltd 2in Open Belt Drive Kit Black 2007-2017 Harley-Davidson Softail TC2PS-2-B

    Belt Drives Ltd 2in Open Belt Drive Kit Black 2007-2017 Harley-Davidson Softail TC2PS-2-B

    BELT DRIVES LTD.

    $3,644.95
    Experience superior performance with the BELT DRIVES LTD. 2" Drive Belt. Designed for high horsepower motors, this belt system features a precision-engineered two-piece motor plate and a unique pulley combination that ensures optimal drive efficiency...
    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'
    $3,644.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,644.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit for 2017-2020 Harley-Davidson Touring Models EVO-16BH-2C

    Belt Drives Ltd 2" Open Belt Drive Kit for 2017-2020 Harley-Davidson Touring Models EVO-16BH-2C

    BELT DRIVES LTD.

    $4,186.95
    Experience unparalleled performance with the Belt Drive EVO-16BH-2C, designed for enthusiasts seeking a powerful and reliable open belt drive system. This kit features a robust one-piece motor plate and a unique belt profile, ensuring optimal...
    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
    $4,186.95
    Qty in Cart: 0
    Quantity:
    Price:
    $4,186.95
    Subtotal:
  • Belt Drives Ltd 1-1/2" Belt Drive 4-Speed 1970-1983 Shovelhead EVBB-3T-4

    Belt Drives Ltd 1-1/2" Belt Drive 4-Speed 1970-1983 Shovelhead EVBB-3T-4

    BELT DRIVES LTD.

    $1,116.95
    Experience superior performance with the Belt Drives Ltd. 1-1/2" Belt Drive 4-Speed EVBB-3T-4. This comprehensive kit is engineered for seamless installation and optimal functionality, making it an ideal choice for enhancing your ride. Crafted with...
    11200248
    SKU:
    11200248
    Availability:
    Ships Same Business Day
    Weight:
    14.80 LBS
    MATERIAL:
    KEVLAR
    WIDTH IMPERIAL:
    1-1/2'
    MATERIAL:
    STEEL
    MATERIAL:
    6061 T-6 BILLET ALUMINUM
    PRODUCT NAME:
    BELT DRIVE KIT
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $1,116.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,116.95
    Subtotal:
  • Belt Drives Ltd 1-5/8" Belt Drive for 1990-1993 Harley-Davidson FXR Super Glide II EVBB-1SL Belt Drives Ltd 1-5/8" Belt Drive for 1990-1993 Harley-Davidson FXR Super Glide II EVBB-1SL

    Belt Drives Ltd 1-5/8" Belt Drive for 1990-1993 Harley-Davidson FXR Super Glide II EVBB-1SL

    BELT DRIVES LTD.

    $1,116.95
    Enhance your ride with the Belt Drives Ltd. 1-5/8" Belt Drive EVBB-1SL, designed for seamless performance and durability. This comprehensive kit includes everything you need for a direct bolt-in application, ensuring a smooth installation and reliable...
    11200249
    SKU:
    11200249
    Availability:
    Ships Same Business Day
    Weight:
    16.45 LBS
    WIDTH IMPERIAL:
    1-5/8'
    RIDING STYLE:
    STREET
    MATERIAL:
    6061 T-6 BILLET ALUMINUM
    PRODUCT NAME:
    BELT DRIVE KIT
    UNITS:
    EACH
    MATERIAL:
    KEVLAR
    MATERIAL:
    STEEL
    $1,116.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,116.95
    Subtotal:
  • Belt Drives Ltd 1-5/8" Belt Drive 4-Speed 1980-1984 Harley-Davidson FXWG FXB FLH EVBB-3TRB

    Belt Drives Ltd 1-5/8" Belt Drive 4-Speed 1980-1984 Harley-Davidson FXWG FXB FLH EVBB-3TRB

    BELT DRIVES LTD.

    $1,116.95
    Upgrade your ride with the Belt Drives Ltd. EVBB-3TRB, designed for optimal performance and durability. This comprehensive belt drive kit features a precision-engineered system that ensures smooth operation and enhanced power delivery, making it perfect...
    11200250
    SKU:
    11200250
    Availability:
    Ships Same Business Day
    Weight:
    15.75 LBS
    MATERIAL:
    KEVLAR
    PRODUCT NAME:
    BELT DRIVE KIT
    WIDTH IMPERIAL:
    1-5/8'
    MATERIAL:
    6061 T-6 BILLET ALUMINUM
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    MATERIAL:
    STEEL
    $1,116.95
    Qty in Cart: 0
    Quantity:
    Price:
    $1,116.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit Polished 2007-2009 FLT Models EVO-13B-2

    Belt Drives Ltd 2" Open Belt Drive Kit Polished 2007-2009 FLT Models EVO-13B-2

    BELT DRIVES LTD.

    $3,355.95
    Experience superior performance with the Belt Drives Ltd. 2" Drive Belt, designed specifically for optimal compatibility with your motorcycle. This polished belt not only enhances the aesthetic appeal of your ride but also ensures a reliable and smooth...
    11200233
    SKU:
    11200233
    Availability:
    Ships Same Business Day
    Weight:
    34.70 LBS
    STYLE:
    RIBBED
    TOOTH COUNT:
    132
    UNITS:
    KIT
    COLOR/FINISH:
    POLISHED
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    BELT DRIVE KIT
    WIDTH IMPERIAL:
    2'
    $3,355.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,355.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2013 Harley-Davidson FLHX Street Glide EVO-13B-2B

    Belt Drives Ltd 2" Open Belt Drive Kit for 2007-2013 Harley-Davidson FLHX Street Glide EVO-13B-2B

    BELT DRIVES LTD.

    $3,590.95
    Upgrade your ride with the Belt Drives Ltd. 2" Drive Belt, designed for optimal performance and durability. This premium drive belt features a robust ball-bearing lockup clutch and comprehensive side and top mesh guards, ensuring safety and efficiency...
    11200234
    SKU:
    11200234
    Availability:
    Ships Same Business Day
    Weight:
    34.70 LBS
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    STYLE:
    RIBBED
    PRODUCT NAME:
    BELT DRIVE KIT
    TOOTH COUNT:
    132
    WIDTH IMPERIAL:
    2'
    $3,590.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,590.95
    Subtotal:
  • Belt Drives Ltd Front Pulley Locking Plate for Harley-Davidson 1985-2006 FLH Models MPLP-100

    Belt Drives Ltd Front Pulley Locking Plate for Harley-Davidson 1985-2006 FLH Models MPLP-100

    BELT DRIVES LTD.

    $33.95
    Enhance the performance and stability of your belt drive system with the MPLP-100 Front Pulley Locking Plate by Belt Drives Ltd. This essential component is designed for compatibility with various offset insert kits, ensuring a secure fit and reliable...
    11200235
    SKU:
    11200235
    Availability:
    Ships Same Business Day
    Weight:
    0.33 LBS
    TYPE:
    PRIMARY
    LENGTH:
    38,0 MM (1-1/2')
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    LENGTH IMPERIAL:
    1-1/2'
    PRODUCT NAME:
    LOCKING PLATE
    LENGTH METRIC:
    38.0 MM
    $33.95
    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
  • Belt Drives Ltd 2.75" Drive Belt Polished 2007-Up Softail and 2006-Up Dyna EVO-8S

    Belt Drives Ltd 2.75" Drive Belt Polished 2007-Up Softail and 2006-Up Dyna EVO-8S

    BELT DRIVES LTD.

    $3,033.95
    Experience unparalleled performance with the BELT DRIVES LTD. 2.75" Drive Belt, designed specifically for the EVO-8S model. This high-quality belt system ensures a smooth and efficient power transfer, enhancing your ride's overall performance and...
    11200210
    SKU:
    11200210
    Availability:
    Ships Same Business Day
    Weight:
    36.00 LBS
    UNITS:
    KIT
    WIDTH IMPERIAL:
    2-3/4'
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    BELT DRIVE KIT
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    POLISHED
    TOOTH COUNT:
    142
    $3,033.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,033.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit for 1970-1978 Harley-Davidson Shovelhead SH-500 Belt Drives Ltd 2" Open Belt Drive Kit for 1970-1978 Harley-Davidson Shovelhead SH-500

    Belt Drives Ltd 2" Open Belt Drive Kit for 1970-1978 Harley-Davidson Shovelhead SH-500

    BELT DRIVES LTD.

    $2,556.95
    Upgrade your ride with the BELT DRIVES LTD. 2" Drive Belt SH-500, designed for exceptional performance and reliability. This advanced clutch system enhances power transfer, ensuring a smoother ride while maximizing efficiency. Crafted in the U.S.A., this...
    11200212
    SKU:
    11200212
    Availability:
    Ships Same Business Day
    Weight:
    29.80 LBS
    MATERIAL:
    ALUMINUM
    MATERIAL:
    KEVLAR
    PRODUCT NAME:
    BELT DRIVE KIT
    WIDTH IMPERIAL:
    2'
    STYLE:
    RIBBED
    TOOTH COUNT:
    132
    UNITS:
    KIT
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    CHROME
    COLOR/FINISH:
    POLISHED
    RIDING STYLE:
    STREET
    $2,556.95
    Qty in Cart: 0
    Quantity:
    Price:
    $2,556.95
    Subtotal:
  • Belt Drives Ltd 8mm 1 1/2in Belt Drive Kit for 1941-1954 Harley-Davidson FL Models 62-39TK-1

    Belt Drives Ltd 8mm 1 1/2in Belt Drive Kit for 1941-1954 Harley-Davidson FL Models 62-39TK-1

    BELT DRIVES LTD.

    $627.95
    Upgrade your classic motorcycle with the Belt Drives Ltd. Belt Drive Kit, designed specifically for models manufactured between 1936 and 1954. This kit includes a robust 39-tooth front pulley and a 61-tooth rear basket, ensuring optimal performance and...
    11200422
    SKU:
    11200422
    Availability:
    Ships Same Business Day
    Weight:
    8.00 LBS
    PRODUCT NAME:
    BELT DRIVE KIT
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    $627.95
    Qty in Cart: 0
    Quantity:
    Price:
    $627.95
    Subtotal:
  • Belt Drives Ltd Front Pulley 40T 8mm for 1955-1983 Harley-Davidson Touring and 1971-1983 FXR 40SI

    Belt Drives Ltd Front Pulley 40T 8mm for 1955-1983 Harley-Davidson Touring and 1971-1983 FXR 40SI

    BELT DRIVES LTD.

    $181.95
    Experience superior performance with the BELT DRIVES LTD. Front Pulley 40SI, designed for durability and precision. Crafted from high-quality billet material, this pulley ensures optimal functionality and longevity. With its hard anodized finish and...
    11200425
    SKU:
    11200425
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    40
    PRODUCT NAME:
    FRONT PULLEY
    UNITS:
    EACH
    $181.95
    Qty in Cart: 0
    Quantity:
    Price:
    $181.95
    Subtotal:
  • Belt Drives Ltd 41T Front Pulley for 1971-1983 Harley-Davidson FXR 1955-1983 Touring 41SI

    Belt Drives Ltd 41T Front Pulley for 1971-1983 Harley-Davidson FXR 1955-1983 Touring 41SI

    BELT DRIVES LTD.

    $181.95
    Introducing the Belt Drives Ltd. Front Pulley 41SI, engineered for durability and performance. Crafted from premium billet materials, this pulley ensures a secure fit and long-lasting operation. With its hard anodized finish, it combines strength with a...
    11200429
    SKU:
    11200429
    Availability:
    Ships Same Business Day
    Weight:
    2.40 LBS
    PRODUCT NAME:
    FRONT PULLEY
    UNITS:
    EACH
    RIDING STYLE:
    STREET
    TOOTH COUNT:
    41
    $181.95
    Qty in Cart: 0
    Quantity:
    Price:
    $181.95
    Subtotal:
  • Belt Drives Ltd Front Pulley 31 Tooth 11mm for 1971-1983 Harley-Davidson FXR 31SI

    Belt Drives Ltd Front Pulley 31 Tooth 11mm for 1971-1983 Harley-Davidson FXR 31SI

    BELT DRIVES LTD.

    $181.95
    Experience superior performance with the BELT DRIVES LTD. Front Pulley 31SI, engineered from robust billet materials for exceptional durability. This pulley is designed for seamless installation and enhanced functionality, making it an ideal choice for...
    11200433
    SKU:
    11200433
    Availability:
    Ships Same Business Day
    Weight:
    2.50 LBS
    TOOTH COUNT:
    31
    PRODUCT NAME:
    FRONT PULLEY
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    $181.95
    Qty in Cart: 0
    Quantity:
    Price:
    $181.95
    Subtotal:
  • Belt Drives Ltd 2" Open Belt Drive Kit for 2018-2020 Harley-Davidson Softail Models M18S-B

    Belt Drives Ltd 2" Open Belt Drive Kit for 2018-2020 Harley-Davidson Softail Models M18S-B

    BELT DRIVES LTD.

    $3,860.95
    Experience enhanced performance and style with the BELT DRIVES LTD. 2" Drive Belt. Designed for high-horsepower motors, this belt drive system combines innovative engineering with a sleek appearance, ensuring optimal functionality and aesthetic appeal. ...
    11200434
    SKU:
    11200434
    Availability:
    Ships Same Business Day
    Weight:
    37.60 LBS
    PRODUCT NAME:
    DRIVE BELT
    SIZE IMPERIAL:
    2'
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    $3,860.95
    Qty in Cart: 0
    Quantity:
    Price:
    $3,860.95
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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