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Harley Drivetrain

Harley Drivetrain

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

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
  • 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 Rear Drive Belt 132-Tooth 1-1/8in for 1986-1994 Harley-Davidson Softail PCC-132-118

    BELT DRIVES LTD.

    MSRP: $265.95
    Now: $239.36
    Was: $265.95
    Experience the ultimate in durability and performance with our Gates carbon X3N rear drive belt. Designed for superior reliability, this belt outperforms traditional aramid cord belts, making it the preferred choice for Harley-Davidson since 1980. Its...
    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: $265.95
    Now: $239.36
    Was: $265.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $265.95
    Now: $239.36
    Was: $265.95
    Subtotal:
  • On Sale
    Belt Drives Ltd Rear Drive Belt 132-Tooth 1-1/2" Harley-Davidson Softail 1986-1994 PCCB-132

    Belt Drives Ltd Rear Drive Belt 132-Tooth 1-1/2" Harley-Davidson Softail 1986-1994 PCCB-132

    BELT DRIVES LTD.

    MSRP: $328.95
    Now: $296.06
    Was: $328.95
    Experience unparalleled performance with the BDL Rear Drive Belt, crafted from advanced Gates carbon X3N material. This innovative design offers superior durability and flexibility, ensuring a smooth and reliable ride. Engineered for optimal...
    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: $328.95
    Now: $296.06
    Was: $328.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $328.95
    Now: $296.06
    Was: $328.95
    Subtotal:
  • On Sale
    Belt Drives Ltd Rear Drive Belt 130-Tooth 1 1/2" 1995-1999 Harley-Davidson Softail PCCB-130

    Belt Drives Ltd Rear Drive Belt 130-Tooth 1 1/2" 1995-1999 Harley-Davidson Softail PCCB-130

    BELT DRIVES LTD.

    MSRP: $312.95
    Now: $281.66
    Was: $312.95
    Experience unparalleled performance with the Premium Rear Drive Belt, designed for durability and reliability. Crafted with advanced Gates carbon X3N material, this belt outperforms traditional aramid cord belts, ensuring a smooth ride and minimal...
    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: $312.95
    Now: $281.66
    Was: $312.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $312.95
    Now: $281.66
    Was: $312.95
    Subtotal:
  • On Sale
    Belt Drives Ltd Rear Drive Belt 133-Tooth 1 1/2" 1993-1999 Harley-Davidson FXD PCCB-133

    Belt Drives Ltd Rear Drive Belt 133-Tooth 1 1/2" 1993-1999 Harley-Davidson FXD PCCB-133

    BELT DRIVES LTD.

    MSRP: $352.95
    Now: $317.66
    Was: $352.95
    Experience superior performance with our 133-tooth rear drive belt, designed for high-torque applications. Crafted from durable polyurethane and reinforced with aramid tensile cords, this belt ensures longevity and reliability for your motorcycle's drive...
    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: $352.95
    Now: $317.66
    Was: $352.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $352.95
    Now: $317.66
    Was: $352.95
    Subtotal:
  • 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 2" Open Belt Drive Kit for 2007-2017 Harley-Davidson Softail and Dyna Models EVO-8S-2

    BELT DRIVES LTD.

    MSRP: $3,033.95
    Now: $2,730.56
    Was: $3,033.95
    Experience enhanced performance with the Belt Drives Ltd. 2" Drive Belt EVO-8S-2, designed for optimal power transfer and durability. This advanced clutch system features a ball-bearing lockup mechanism that significantly increases 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: $3,033.95
    Now: $2,730.56
    Was: $3,033.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $3,033.95
    Now: $2,730.56
    Was: $3,033.95
    Subtotal:
  • 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 14mm 1-1/2in Primary Belt 69T Harley-Davidson 1985-1996 FLH FLT FXR PCC-69-112

    BELT DRIVES LTD.

    MSRP: $236.95
    Now: $213.26
    Was: $236.95
    The PCC-69-112 Replacement Belt from Belt Drives Ltd. is engineered for optimal performance in BDL primary drives. Designed for durability and efficiency, this belt ensures smooth operation and longevity, making it an essential component for your drive...
    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: $236.95
    Now: $213.26
    Was: $236.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $236.95
    Now: $213.26
    Was: $236.95
    Subtotal:
  • On Sale
    Belt Drives Ltd Offset Spacer 1/4" for Harley-Davidson 1985-2006 FLHR Road King IN-250

    Belt Drives Ltd Offset Spacer 1/4" for Harley-Davidson 1985-2006 FLHR Road King IN-250

    BELT DRIVES LTD.

    MSRP: $103.95
    Now: $93.56
    Was: $103.95
    This high-quality offset spacer is designed specifically for precise motor pulley alignment, ensuring optimal performance of your belt drive system. Manufactured in the U.S.A., it comes complete with a motor sprocket nut and mounting screws, making...
    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: $103.95
    Now: $93.56
    Was: $103.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $103.95
    Now: $93.56
    Was: $103.95
    Subtotal:
  • On Sale
    Belt Drives Ltd 8mm 3" Primary Belt Drive Kick Start Spline Shaft 1955-1984 76-47-3S

    Belt Drives Ltd 8mm 3" Primary Belt Drive Kick Start Spline Shaft 1955-1984 76-47-3S

    BELT DRIVES LTD.

    MSRP: $691.95
    Now: $622.76
    Was: $691.95
    Upgrade your motorcycle's performance with our high-quality 8mm Primary Belt Drive Kick Start Spline Shaft. Designed for durability and efficiency, this kit includes essential components to enhance your ride. Crafted in the U.S.A., it is perfect for...
    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: $691.95
    Now: $622.76
    Was: $691.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $691.95
    Now: $622.76
    Was: $691.95
    Subtotal:
  • On Sale
    Belt Drives Ltd Transmission Pulley 32T for Harley-Davidson Softail Custom FXSTC 1986-1999 TP-32

    Belt Drives Ltd Transmission Pulley 32T for Harley-Davidson Softail Custom FXSTC 1986-1999 TP-32

    BELT DRIVES LTD.

    MSRP: $202.95
    Now: $182.66
    Was: $202.95
    Experience enhanced performance with the BELT DRIVES LTD. Transmission Pulley TP-32, expertly crafted from lightweight 6061 T-6 aluminum and finished with a durable hard anodized coating. Designed to significantly reduce weight while maintaining...
    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: $202.95
    Now: $182.66
    Was: $202.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $202.95
    Now: $182.66
    Was: $202.95
    Subtotal:
  • On Sale
    ARLEN NESS Transmission Cover - Black 03-823 ARLEN NESS Transmission Cover - Black 03-823

    ARLEN NESS Transmission Cover - Black 03-823

    ARLEN NESS

    MSRP: $179.95
    Now: $163.75
    Was: $179.95
    Replaces the OEM cover, Includes necessary gaskets and hardware, Matching transmission top covers sold separately, Hydraulic style cover mounts on top of OEM hydraulic unit found on '14-up Touring models with fairing, Cable style cover replaces the OEM...
    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: $179.95
    Now: $163.75
    Was: $179.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $179.95
    Now: $163.75
    Was: $179.95
    Subtotal:
  • DRAG SPECIALTIES Kickstarter Shaft 292003-HC-3

    DRAG SPECIALTIES Kickstarter Shaft 292003-HC-3

    DRAG SPECIALTIES

    $25.70
    High-quality steel replacement shaft, Machined for an exact fit
    DS196010
    SKU:
    DS196010
    Availability:
    Ships Same Business Day
    Weight:
    0.69 LBS
    PRODUCT NAME:
    KICKSTARTER SHAFT
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    POLISHED
    UNITS:
    EACH
    $25.70
    Qty in Cart: 0
    Quantity:
    Price:
    $25.70
    Subtotal:
  • DRAG SPECIALTIES Kickstarter Crank Gear 292012-HC4

    DRAG SPECIALTIES Kickstarter Crank Gear 292012-HC4

    DRAG SPECIALTIES

    $32.91
    Replacement kickstarter gear for Drag Specialties Kickstarter Kit
    DS241028
    SKU:
    DS241028
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    TOOTH COUNT:
    24
    UNITS:
    EACH
    SIZE:
    STANDARD
    PRODUCT NAME:
    GEAR
    RIDING STYLE:
    STREET
    TYPE:
    KICKSTART CRANK
    $32.91
    Qty in Cart: 0
    Quantity:
    Price:
    $32.91
    Subtotal:
  • ALTO PRODUCTS Red Eagle Plates 095752P

    ALTO PRODUCTS Red Eagle Plates 095752P

    ALTO PRODUCTS

    $107.95
    Aramid plates are for high-performance applications; Red Eagle organic plates are for OEM replacement, Increased surface area for decreased slipping, Increases holding while decreasing heat generation, Can be run wet or dry, Meets or exceeds OEM...
    11310478
    SKU:
    11310478
    Availability:
    Ships Same Business Day
    Weight:
    1.04 LBS
    COLOR/FINISH:
    RED
    FRICTION PLATE MATERIAL:
    ORGANIC
    PRODUCT NAME:
    FRICTION PLATE SET
    RIDING STYLE:
    STREET
    MODEL:
    RED EAGLE®
    UNITS:
    9 PACK
    TYPE:
    CLUTCH
    Qty in Cart: 0
    Quantity:
    Price:
    $107.95
    Subtotal:
  • ALTO PRODUCTS Steel Plate Set 095753E

    ALTO PRODUCTS Steel Plate Set 095753E

    ALTO PRODUCTS

    $54.95
    Precision-made
    11310485
    SKU:
    11310485
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    PRODUCT NAME:
    PLATE SET
    UNITS:
    SET OF 7
    RIDING STYLE:
    STREET
    TYPE:
    CLUTCH
    MATERIAL:
    STEEL
    Qty in Cart: 0
    Quantity:
    Price:
    $54.95
    Subtotal:
  • ANDREWS 4-Speed Mainshaft 258190

    ANDREWS 4-Speed Mainshaft 258190

    ANDREWS

    $263.95
    Sold individually, unless noted.
    DS199449
    SKU:
    DS199449
    Availability:
    Ships Same Business Day
    Weight:
    1.69 LBS
    STYLE:
    4-SPEED
    TYPE:
    TRANSMISSION
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    MAINSHAFT
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $263.95
    Subtotal:
  • ANDREWS Stock Ratio Clutch Gear 254730

    ANDREWS Stock Ratio Clutch Gear 254730

    ANDREWS

    $299.95
    Sold individually, unless noted.
    DS199438
    SKU:
    DS199438
    Availability:
    Ships Same Business Day
    Weight:
    1.20 LBS
    PRODUCT NAME:
    GEAR CLUTCH
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    STYLE:
    STANDARD RATIO
    TYPE:
    STOCK RATIO
    Qty in Cart: 0
    Quantity:
    Price:
    $299.95
    Subtotal:
  • ANDREWS Countershaft - Main Drive Gear 255580

    ANDREWS Countershaft - Main Drive Gear 255580

    ANDREWS

    $130.95
    Sold individually, unless noted.
    DS199439
    SKU:
    DS199439
    Availability:
    Ships Same Business Day
    Weight:
    0.88 LBS
    PRODUCT NAME:
    COUNTERSHAFT
    RIDING STYLE:
    STREET
    STYLE:
    STANDARD RATIO
    TOOTH COUNT:
    27
    TYPE:
    MAIN DRIVE GEAR
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $130.95
    Subtotal:
  • ANDREWS 5-Speed Gear Set - 2.94:1 First Ratio 296081

    ANDREWS 5-Speed Gear Set - 2.94:1 First Ratio 296081

    ANDREWS

    $1,414.95
    Gears are made from high-nickel alloy steel that is heat-treated and shot-peened for maximum durability and strength, Set includes gears, mainshaft and countershaft, Made in the U.S.A.
    11060058
    SKU:
    11060058
    Availability:
    Ships Same Business Day
    Weight:
    14.45 LBS
    FIRST GEAR RATIO:
    2.94:1
    TYPE:
    TRANSMISSION
    PRODUCT NAME:
    GEAR SET
    RIDING STYLE:
    STREET
    STYLE:
    CLOSE RATIO
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $1,414.95
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Sprocket Shaft Spacers - 0.120" A-24034-70

    EASTERN MOTORCYCLE PARTS Sprocket Shaft Spacers - 0.120" A-24034-70

    EASTERN MOTORCYCLE PARTS

    $13.50
    The only way to properly space/align the front motor sprocket or belt drive pulley, Made in the U.S.A.
    DS196138
    SKU:
    DS196138
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    STREET
    TYPE:
    SPROCKET
    UNITS:
    5 PACK
    $13.50
    Qty in Cart: 0
    Quantity:
    Price:
    $13.50
    Subtotal:
  • EASTERN MOTORCYCLE PARTS Starter Springs A-33391-36

    EASTERN MOTORCYCLE PARTS Starter Springs A-33391-36

    EASTERN MOTORCYCLE PARTS

    $13.50
    Made in the U.S.A.
    21100362
    SKU:
    21100362
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    TYPE:
    STARTER CLUTCH
    UNITS:
    10 PACK
    PRODUCT NAME:
    SPRING
    RIDING STYLE:
    STREET
    $13.50
    Qty in Cart: 0
    Quantity:
    Price:
    $13.50
    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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