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 4026

    HOT RODS Crankshaft 4026

    HOT RODS

    MSRP: $506.95
    Now: $310.00
    Was: $516.95
    HOT RODS Crankshaft 4026Sold 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...
    09210236
    SKU:
    09210236
    Availability:
    Ships Same Business Day
    Weight:
    9.00 LBS
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    COLOR/FINISH:
    STEEL
    FEATURES:
    STANDARD CRANKSHAFT
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    72.00 MM
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    250 CC
    MATERIAL:
    4140 STEEL
    MODEL:
    2-CYCLE
    UNITS:
    ASSEMBLY
    MSRP: $506.95
    Now: $310.00
    Was: $516.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $506.95
    Now: $310.00
    Was: $516.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4066

    HOT RODS Crankshaft 4066

    HOT RODS

    MSRP: $258.95
    Now: $237.56
    Was: $263.95
    HOT RODS Crankshaft 4066Sold 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...
    09210075
    SKU:
    09210075
    Availability:
    Ships Same Business Day
    Weight:
    4.61 LBS
    DISPLACEMENT:
    85 CC TO 100 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MODEL:
    2-CYCLE
    FEATURES:
    STANDARD CRANKSHAFT
    STROKE LENGTH METRIC:
    45.80 MM
    TYPE:
    OEM STROKE
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    MSRP: $258.95
    Now: $237.56
    Was: $263.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $258.95
    Now: $237.56
    Was: $263.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4064

    HOT RODS Crankshaft 4064

    HOT RODS

    MSRP: $431.95
    Now: $396.86
    Was: $440.95
    HOT RODS Crankshaft 4064Sold 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...
    09210073
    SKU:
    09210073
    Availability:
    Ships Same Business Day
    Weight:
    7.13 LBS
    MODEL:
    4-CYCLE
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    250 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    53.60 MM
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    MSRP: $431.95
    Now: $396.86
    Was: $440.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $431.95
    Now: $396.86
    Was: $440.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4071

    HOT RODS Crankshaft 4071

    HOT RODS

    MSRP: $355.95
    Now: $326.66
    Was: $362.95
    HOT RODS Crankshaft 4071Sold 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...
    09210051
    SKU:
    09210051
    Availability:
    Ships Same Business Day
    Weight:
    4.81 LBS
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    48.90 MM
    DISPLACEMENT:
    85 CC TO 105 CC
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    2-CYCLE
    TYPE:
    OEM STROKE
    MSRP: $355.95
    Now: $326.66
    Was: $362.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $355.95
    Now: $326.66
    Was: $362.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft - Stroker 4148

    HOT RODS Crankshaft - Stroker 4148

    HOT RODS

    MSRP: $525.95
    Now: $482.36
    Was: $535.95
    HOT RODS Crankshaft Stroker 4148Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for...
    09210040
    SKU:
    09210040
    Availability:
    Ships Same Business Day
    Weight:
    9.75 LBS
    DISPLACEMENT:
    470 CC
    MODEL:
    4-CYCLE
    TYPE:
    STROKER
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    65.00 MM
    UNITS:
    ASSEMBLY
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH:
    65,00 MM
    MSRP: $525.95
    Now: $482.36
    Was: $535.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $525.95
    Now: $482.36
    Was: $535.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft - Stroker 4149

    HOT RODS Crankshaft - Stroker 4149

    HOT RODS

    MSRP: $481.95
    Now: $442.76
    Was: $491.95
    HOT RODS Crankshaft Stroker 4149Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for...
    09210039
    SKU:
    09210039
    Availability:
    Ships Same Business Day
    Weight:
    6.88 LBS
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH:
    56,60 MM
    TYPE:
    STROKER
    FEATURES:
    STANDARD CRANKSHAFT
    RIDING STYLE:
    OFF-ROAD
    DISPLACEMENT:
    264 CC
    MODEL:
    4-CYCLE
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    56.60 MM
    UNITS:
    ASSEMBLY
    MSRP: $481.95
    Now: $442.76
    Was: $491.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $481.95
    Now: $442.76
    Was: $491.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4048

    HOT RODS Crankshaft Assembly 4048

    HOT RODS

    MSRP: $377.95
    Now: $347.36
    Was: $385.95
    HOT RODS Crankshaft Assembly 4048Sold 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...
    09210015
    SKU:
    09210015
    Availability:
    Ships Same Business Day
    Weight:
    9.80 LBS
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MODEL:
    4-CYCLE
    COLOR/FINISH:
    STEEL
    DISPLACEMENT:
    450 CC
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    OEM STROKE
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    62.00 MM
    UNITS:
    ASSEMBLY
    MSRP: $377.95
    Now: $347.36
    Was: $385.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $377.95
    Now: $347.36
    Was: $385.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4049

    HOT RODS Crankshaft Assembly 4049

    HOT RODS

    MSRP: $398.95
    Now: $366.26
    Was: $406.95
    HOT RODS Crankshaft Assembly 4049Sold 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...
    09210013
    SKU:
    09210013
    Availability:
    Ships Same Business Day
    Weight:
    6.95 LBS
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MODEL:
    4-CYCLE
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    250 CC
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    MATERIAL:
    4140 STEEL
    STROKE LENGTH METRIC:
    53.60 MM
    MSRP: $398.95
    Now: $366.26
    Was: $406.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $398.95
    Now: $366.26
    Was: $406.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4014

    HOT RODS Crankshaft Assembly 4014

    HOT RODS

    MSRP: $247.95
    Now: $227.66
    Was: $252.95
    HOT RODS Crankshaft Assembly 4014Sold 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...
    H117
    SKU:
    H117
    Availability:
    Ships Same Business Day
    Weight:
    4.10 LBS
    MATERIAL:
    4140 STEEL
    UNITS:
    ASSEMBLY
    COLOR/FINISH:
    STEEL
    DISPLACEMENT:
    65 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    41.60 MM
    FEATURES:
    STANDARD CRANKSHAFT
    MODEL:
    2-CYCLE
    TYPE:
    OEM STROKE
    MSRP: $247.95
    Now: $227.66
    Was: $252.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $247.95
    Now: $227.66
    Was: $252.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Assembly 4032

    HOT RODS Crankshaft Assembly 4032

    HOT RODS

    MSRP: $387.95
    Now: $356.36
    Was: $395.95
    HOT RODS Crankshaft Assembly 4032Sold 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...
    H121
    SKU:
    H121
    Availability:
    Ships Same Business Day
    Weight:
    6.56 LBS
    COLOR/FINISH:
    STEEL
    FEATURES:
    STANDARD CRANKSHAFT
    STROKE LENGTH METRIC:
    54.60 MM
    TYPE:
    OEM STROKE
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    MODEL:
    2-CYCLE
    DISPLACEMENT:
    125 CC
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MSRP: $387.95
    Now: $356.36
    Was: $395.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $387.95
    Now: $356.36
    Was: $395.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4093

    HOT RODS Crankshaft 4093

    HOT RODS

    MSRP: $409.95
    Now: $376.16
    Was: $417.95
    HOT RODS Crankshaft 4093Sold 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...
    09210213
    SKU:
    09210213
    Availability:
    Ships Same Business Day
    Weight:
    9.94 LBS
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MODEL:
    4-CYCLE
    DISPLACEMENT:
    450 CC
    FEATURES:
    STANDARD CRANKSHAFT
    TYPE:
    OEM STROKE
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    62.10 MM
    UNITS:
    ASSEMBLY
    MSRP: $409.95
    Now: $376.16
    Was: $417.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $409.95
    Now: $376.16
    Was: $417.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4095

    HOT RODS Crankshaft 4095

    HOT RODS

    MSRP: $323.95
    Now: $296.96
    Was: $329.95
    HOT RODS Crankshaft 4095Sold 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...
    09210215
    SKU:
    09210215
    Availability:
    Ships Same Business Day
    Weight:
    7.15 LBS
    COLOR/FINISH:
    STEEL
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    FEATURES:
    HEAVY DUTY CRANKSHAFT
    TYPE:
    OEM STROKE
    DISPLACEMENT:
    250 CC
    MODEL:
    4-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH METRIC:
    52.20 MM
    MSRP: $323.95
    Now: $296.96
    Was: $329.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $323.95
    Now: $296.96
    Was: $329.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Kit CBK0119

    HOT RODS Crankshaft Kit CBK0119

    HOT RODS

    MSRP: $484.95
    Now: $445.46
    Was: $494.95
    HOT RODS Crankshaft Kit CBK0119Assembly 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...
    09210356
    SKU:
    09210356
    Availability:
    Ships Same Business Day
    Weight:
    9.00 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    TYPE:
    OEM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    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 Crankshaft Kit CBK0120

    HOT RODS Crankshaft Kit CBK0120

    HOT RODS

    MSRP: $808.95
    Now: $742.46
    Was: $824.95
    HOT RODS Crankshaft Kit CBK0120Assembly 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...
    09210357
    SKU:
    09210357
    Availability:
    Ships Same Business Day
    Weight:
    13.65 LBS
    PRODUCT NAME:
    CRANKSHAFT KIT
    TYPE:
    OEM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $808.95
    Now: $742.46
    Was: $824.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $808.95
    Now: $742.46
    Was: $824.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft Kit CBK0124

    HOT RODS Crankshaft Kit CBK0124

    HOT RODS

    MSRP: $625.95
    Now: $574.16
    Was: $637.95
    HOT RODS Crankshaft Kit CBK0124Assembly 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...
    09210358
    SKU:
    09210358
    Availability:
    Ships Same Business Day
    Weight:
    13.08 LBS
    TYPE:
    OEM
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    CRANKSHAFT KIT
    UNITS:
    KIT
    MSRP: $625.95
    Now: $574.16
    Was: $637.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $625.95
    Now: $574.16
    Was: $637.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft 4068

    HOT RODS Crankshaft 4068

    HOT RODS

    MSRP: $199.95
    Now: $179.96
    Was: $199.95
    HOT RODS Crankshaft 4068Sold 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...
    09210076
    SKU:
    09210076
    Availability:
    Ships Same Business Day
    Weight:
    4.78 LBS
    COLOR/FINISH:
    STEEL
    DISPLACEMENT:
    85 CC
    MATERIAL:
    4140 STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    48.00 MM
    UNITS:
    ASSEMBLY
    MODEL:
    2-CYCLE
    FEATURES:
    STANDARD CRANKSHAFT
    TYPE:
    OEM STROKE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    MSRP: $199.95
    Now: $179.96
    Was: $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $199.95
    Now: $179.96
    Was: $199.95
    Subtotal:
  • On Sale
    HOT RODS Crankshaft - Stroker 4166

    HOT RODS Crankshaft - Stroker 4166

    HOT RODS

    MSRP: $257.95
    Now: $236.66
    Was: $262.95
    HOT RODS Crankshaft Stroker 4166Hot Rods has developed six long-stroke applications for ATVs, Special pistons for TRX400EX, KFX/LTZ 400, Banshee, Warrior and Raptor make these installations simple by avoiding machine work and parts typically required for...
    09210077
    SKU:
    09210077
    Availability:
    Ships Same Business Day
    Weight:
    4.60 LBS
    COLOR/FINISH:
    STEEL
    DISPLACEMENT:
    88 CC TO 103.5 CC
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    ASSEMBLY
    MATERIAL:
    4140 STEEL
    MODEL:
    2-CYCLE
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    STROKE LENGTH:
    47,80 MM
    STROKE LENGTH METRIC:
    47.80 MM
    FEATURES:
    STANDARD CRANKSHAFT
    TYPE:
    STROKER
    MSRP: $257.95
    Now: $236.66
    Was: $262.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $257.95
    Now: $236.66
    Was: $262.95
    Subtotal:
  • WISECO Crankshaft with Bearing and Gasket WPC128A

    WISECO Crankshaft with Bearing and Gasket WPC128A

    WISECO

    $479.95
    WISECO Crankshaft with Bearing and Gasket WPC128AInclude crankshaft, top end bearing, premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job, Only one part number to stock and order,...
    09210108
    SKU:
    09210108
    Availability:
    Ships Same Business Day
    Weight:
    12.96 LBS
    TYPE:
    BOTTOM END
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    FEATURES:
    INCLUDES BEARING AND GASKET
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    $479.95
    Qty in Cart: 0
    Quantity:
    Price:
    $479.95
    Subtotal:
  • WISECO Crankshaft with Bearing and Gasket WPC128B

    WISECO Crankshaft with Bearing and Gasket WPC128B

    WISECO

    $479.95
    WISECO Crankshaft with Bearing and Gasket WPC128BInclude crankshaft, top end bearing, premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job, Only one part number to stock and order,...
    09210109
    SKU:
    09210109
    Availability:
    Ships Same Business Day
    Weight:
    12.51 LBS
    TYPE:
    BOTTOM END
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    FEATURES:
    INCLUDES BEARING AND GASKET
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    $479.95
    Qty in Cart: 0
    Quantity:
    Price:
    $479.95
    Subtotal:
  • WISECO Crankshaft with Bearing and Gasket WPC135

    WISECO Crankshaft with Bearing and Gasket WPC135

    WISECO

    $399.95
    WISECO Crankshaft with Bearing and Gasket WPC135Include crankshaft, top end bearing, premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job, Only one part number to stock and order, Crankshafts...
    09210110
    SKU:
    09210110
    Availability:
    Ships Same Business Day
    Weight:
    9.43 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.50 MM
    UNITS:
    KIT
    TYPE:
    BOTTOM END
    FEATURES:
    INCLUDES BEARING AND GASKET
    PRODUCT NAME:
    CRANKSHAFT ASSEMBLY
    $399.95
    Qty in Cart: 0
    Quantity:
    Price:
    $399.95
    Subtotal:
  • Total: items /

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