Dirt Bike Crankshafts and Parts

Dirt Bike Crankshafts and Parts

Dirt Bike Crankshafts and Parts

JJ Motorsports dirt bike aftermarket engine crankshafts are some of the best you can find. They're tough and dependable, so you know they'll last through even the roughest conditions. Best of all, they're priced competitively, so you don't have to spend a fortune to get top quality parts. And if you need them quickly, JJ Motorsports offers fast shipping to get your parts to you as soon as possible. So if you're looking for aftermarket engine crankshafts for your dirt bike, JJ Motorsports is the place to go.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    HOT RODS Crankshaft Kit CBK0129

    HOT RODS Crankshaft Kit CBK0129

    HOT RODS

    MSRP: $679.95
    Now: $624.56
    Was: $703.95
    HOT RODS Crankshaft Kit CBK0129Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...
    09210363
    SKU:
    09210363
    Availability:
    Ships Same Business Day
    Weight:
    13.10 LBS
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CRANKSHAFT KIT
    TYPE:
    OEM
    MSRP: $679.95
    Now: $624.56
    Was: $703.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $679.95
    Now: $624.56
    Was: $703.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Kit CBK0133

    HOT RODS Crankshaft Kit CBK0133

    HOT RODS

    Now: $370.22
    Was: $411.95
    HOT RODS Crankshaft Kit CBK0133Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...
    09210365
    SKU:
    09210365
    Availability:
    Ships Same Business Day
    Weight:
    6.60 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PRODUCT NAME:
    CRANKSHAFT KIT
    TYPE:
    STROKER
    Now: $370.22
    Was: $411.95
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $370.22
    Was: $411.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Kit CBK0134

    HOT RODS Crankshaft Kit CBK0134

    HOT RODS

    MSRP: $301.95
    Now: $277.16
    Was: $312.95
    HOT RODS Crankshaft Kit CBK0134Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...
    09210366
    SKU:
    09210366
    Availability:
    Ships Same Business Day
    Weight:
    6.07 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    STROKER
    MSRP: $301.95
    Now: $277.16
    Was: $312.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $301.95
    Now: $277.16
    Was: $312.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4024

    HOT RODS Crankshaft 4024

    HOT RODS

    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    HOT RODS Crankshaft 4024Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210234
    SKU:
    09210234
    Availability:
    Ships Same Business Day
    Weight:
    6.80 LBS
    RIDING STYLE:
    OFF-ROAD
    DISPLACEMENT:
    125 CC
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    2-CYCLE
    STROKE LENGTH METRIC:
    54.50 MM
    TYPE:
    OEM STROKE
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4025

    HOT RODS Crankshaft 4025

    HOT RODS

    MSRP: $484.95
    Now: $445.46
    Was: $501.95
    HOT RODS Crankshaft 4025Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210235
    SKU:
    09210235
    Availability:
    Ships Same Business Day
    Weight:
    6.85 LBS
    DISPLACEMENT:
    144 CC TO 150 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    58.30 MM
    COLOR/FINISH:
    STEEL
    FEATURES:
    STANDARD CRANKSHAFT
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    MODEL:
    2-CYCLE
    TYPE:
    OEM STROKE
    MSRP: $484.95
    Now: $445.46
    Was: $501.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $484.95
    Now: $445.46
    Was: $501.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4029

    HOT RODS Crankshaft 4029

    HOT RODS

    MSRP: $538.95
    Now: $494.96
    Was: $557.95
    HOT RODS Crankshaft 4029Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210238
    SKU:
    09210238
    Availability:
    Ships Same Business Day
    Weight:
    7.24 LBS
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.80 MM
    UNITS:
    ASSEMBLY
    FEATURES:
    STANDARD CRANKSHAFT
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    250 CC
    MODEL:
    4-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MSRP: $538.95
    Now: $494.96
    Was: $557.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $538.95
    Now: $494.96
    Was: $557.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4030

    HOT RODS Crankshaft 4030

    HOT RODS

    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    HOT RODS Crankshaft 4030Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210239
    SKU:
    09210239
    Availability:
    Ships Same Business Day
    Weight:
    13.33 LBS
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    DISPLACEMENT:
    500 CC
    MODEL:
    2-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    79.00 MM
    MATERIAL:
    4140 STEEL
    TYPE:
    OEM STROKE
    FEATURES:
    STANDARD CRANKSHAFT
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4046

    HOT RODS Crankshaft 4046

    HOT RODS

    MSRP: $420.95
    Now: $386.06
    Was: $434.95
    HOT RODS Crankshaft 4046Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210240
    SKU:
    09210240
    Availability:
    Ships Same Business Day
    Weight:
    6.95 LBS
    DISPLACEMENT:
    200 CC
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    2-CYCLE
    TYPE:
    OEM STROKE
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    59.90 MM
    MSRP: $420.95
    Now: $386.06
    Was: $434.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $420.95
    Now: $386.06
    Was: $434.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4096

    HOT RODS Crankshaft 4096

    HOT RODS

    MSRP: $398.95
    Now: $366.26
    Was: $412.95
    HOT RODS Crankshaft 4096Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210242
    SKU:
    09210242
    Availability:
    Ships Same Business Day
    Weight:
    7.10 LBS
    MODEL:
    4-CYCLE
    TYPE:
    OEM STROKE
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    DISPLACEMENT:
    250 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    53.60 MM
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    MSRP: $398.95
    Now: $366.26
    Was: $412.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $398.95
    Now: $366.26
    Was: $412.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4097

    HOT RODS Crankshaft 4097

    HOT RODS

    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    HOT RODS Crankshaft 4097Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210243
    SKU:
    09210243
    Availability:
    Ships Same Business Day
    Weight:
    7.45 LBS
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    4-CYCLE
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    250 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    53.80 MM
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4058

    HOT RODS Crankshaft Assembly 4058

    HOT RODS

    MSRP: $495.95
    Now: $455.36
    Was: $513.95
    HOT RODS Crankshaft Assembly 4058Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...
    09210026
    SKU:
    09210026
    Availability:
    Ships Same Business Day
    Weight:
    9.04 LBS
    COLOR/FINISH:
    STEEL
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    DISPLACEMENT:
    250 CC
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    2-CYCLE
    STROKE LENGTH METRIC:
    72.00 MM
    TYPE:
    OEM STROKE
    MSRP: $495.95
    Now: $455.36
    Was: $513.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $495.95
    Now: $455.36
    Was: $513.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4054

    HOT RODS Crankshaft Assembly 4054

    HOT RODS

    MSRP: $344.95
    Now: $316.76
    Was: $356.95
    HOT RODS Crankshaft Assembly 4054Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...
    09210027
    SKU:
    09210027
    Availability:
    Ships Same Business Day
    Weight:
    6.22 LBS
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.60 MM
    DISPLACEMENT:
    125 CC
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    2-CYCLE
    TYPE:
    OEM STROKE
    MSRP: $344.95
    Now: $316.76
    Was: $356.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $344.95
    Now: $316.76
    Was: $356.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4041

    HOT RODS Crankshaft Assembly 4041

    HOT RODS

    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    HOT RODS Crankshaft Assembly 4041Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...
    09210016
    SKU:
    09210016
    Availability:
    Ships Same Business Day
    Weight:
    6.55 LBS
    DISPLACEMENT:
    125 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    FEATURES:
    STANDARD CRANKSHAFT
    STROKE LENGTH METRIC:
    54.60 MM
    TYPE:
    OEM STROKE
    MODEL:
    2-CYCLE
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4050

    HOT RODS Crankshaft Assembly 4050

    HOT RODS

    MSRP: $420.95
    Now: $386.06
    Was: $434.95
    HOT RODS Crankshaft Assembly 4050Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and...
    09210017
    SKU:
    09210017
    Availability:
    Ships Same Business Day
    Weight:
    8.63 LBS
    MODEL:
    4-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    DISPLACEMENT:
    450 CC
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    63.40 MM
    TYPE:
    OEM STROKE
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    MSRP: $420.95
    Now: $386.06
    Was: $434.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $420.95
    Now: $386.06
    Was: $434.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4081

    HOT RODS Crankshaft 4081

    HOT RODS

    MSRP: $484.95
    Now: $445.46
    Was: $501.95
    HOT RODS Crankshaft 4081Sold complete with the original proven Hot Rods connecting rods, top-end bearings and crankshaft webs, Factory assembled and trued to OEM specifications; meet or surpass OEM in performance and durability, Complete and ready for...
    09210136
    SKU:
    09210136
    Availability:
    Ships Same Business Day
    Weight:
    7.26 LBS
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    COLOR/FINISH:
    STEEL
    FEATURES:
    STANDARD CRANKSHAFT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    OEM STROKE
    MODEL:
    4-CYCLE
    DISPLACEMENT:
    250 CC
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    53.60 MM
    UNITS:
    ASSEMBLY
    MSRP: $484.95
    Now: $445.46
    Was: $501.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $484.95
    Now: $445.46
    Was: $501.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4022

    HOT RODS Crankshaft 4022

    HOT RODS

    MSRP: $495.95
    Now: $455.36
    Was: $513.95
    HOT RODS Crankshaft 4022Assembly sold complete with Hot Rods connecting rod, Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely rebuild-able...
    09210546
    SKU:
    09210546
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    DISPLACEMENT:
    250 CC
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    53.60 MM
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    FEATURES:
    STANDARD CRANKSHAFT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    OEM STROKE
    MODEL:
    4-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MSRP: $495.95
    Now: $455.36
    Was: $513.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $495.95
    Now: $455.36
    Was: $513.95
    Subtotal:
  • On Sale
    HOT RODS Bottom End Kit CBK0209

    HOT RODS Bottom End Kit CBK0209

    HOT RODS

    MSRP: $484.95
    Now: $445.46
    Was: $494.95
    HOT RODS Bottom End Kit CBK0209Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete engine rebuild, "Stroker...
    09210572
    SKU:
    09210572
    Availability:
    Ships Same Business Day
    Weight:
    7.00 LBS
    DISPLACEMENT:
    108 CC
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    +4.00 MM
    UNITS:
    KIT
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STROKER
    MODEL:
    2-CYCLE
    PRODUCT NAME:
    BOTTOM END KIT
    MSRP: $484.95
    Now: $445.46
    Was: $494.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $484.95
    Now: $445.46
    Was: $494.95
    Subtotal:
  • On Sale
    HOT RODS Bottom End Kit CBK0207

    HOT RODS Bottom End Kit CBK0207

    HOT RODS

    MSRP: $431.95
    Now: $396.86
    Was: $447.95
    HOT RODS Bottom End Kit CBK0207Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete engine rebuild, "Stroker...
    09210573
    SKU:
    09210573
    Availability:
    Ships Same Business Day
    Weight:
    6.70 LBS
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    OE REPLACEMENT
    UNITS:
    KIT
    MODEL:
    2-CYCLE
    PRODUCT NAME:
    BOTTOM END KIT
    STROKE LENGTH METRIC:
    STANDARD
    MSRP: $431.95
    Now: $396.86
    Was: $447.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $431.95
    Now: $396.86
    Was: $447.95
    Subtotal:
  • On Sale
    HOT RODS Bottom End Kit CBK0205

    HOT RODS Bottom End Kit CBK0205

    HOT RODS

    MSRP: $582.95
    Now: $535.46
    Was: $603.95
    HOT RODS Bottom End Kit CBK0205Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete engine rebuild, "Stroker...
    09210576
    SKU:
    09210576
    Availability:
    Ships Same Business Day
    Weight:
    10.00 LBS
    MODEL:
    4-CYCLE
    UNITS:
    KIT
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    STANDARD
    TYPE:
    OE REPLACEMENT
    COLOR/FINISH:
    STEEL
    PRODUCT NAME:
    BOTTOM END KIT
    RIDING STYLE:
    OFF-ROAD
    MSRP: $582.95
    Now: $535.46
    Was: $603.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $582.95
    Now: $535.46
    Was: $603.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Kit CBK0091

    HOT RODS Crankshaft Kit CBK0091

    HOT RODS

    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    HOT RODS Crankshaft Kit CBK0091Assembly sold complete with Hot Rods connecting rod, Factory assembled and true to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance, Ready for installation, Crankshaft is completely...
    09210336
    SKU:
    09210336
    Availability:
    Ships Same Business Day
    Weight:
    8.25 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    OEM
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $387.95
    Now: $356.36
    Was: $401.95
    Subtotal:
  • Total: items /

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