Dirt Bike Engine

Dirt Bike Engine

Dirt Bike Engine

Explore our selection for dirt bike parts for adding horsepower or reliability to a dirt bike's engine. We feature engine parts from Wiseco, Vertex, and more common engine part manufacturers. Get new pistons and gasket kits for re-freshening engines to withstand any conditions you put your bike through!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • WISECO Piston 4752M05400

    WISECO Piston 4752M05400

    WISECO

    $154.95
    WISECO Piston 4752M05400Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    4752M05400
    SKU:
    4752M05400
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    123.7 CC
    PISTON DIAMETER METRIC:
    53.95 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    54.00 MM
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.00 MM
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston 4752M05450

    WISECO Piston 4752M05450

    WISECO

    $154.95
    WISECO Piston 4752M05450Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    4752M05450
    SKU:
    4752M05450
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    STROKE LENGTH METRIC:
    54.00 MM
    DISPLACEMENT:
    123.7 CC
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,50 MM
    BORE SIZE METRIC:
    54.50 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    54.45 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston 4752M05500

    WISECO Piston 4752M05500

    WISECO

    $154.95
    WISECO Piston 4752M05500Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    4752M05500
    SKU:
    4752M05500
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    55.00 MM
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    123.7 CC
    PISTON DIAMETER METRIC:
    54.95 MM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    54.00 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston 478M08700

    WISECO Piston 478M08700

    WISECO

    $234.95
    WISECO Piston 478M08700Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    478M08700
    SKU:
    478M08700
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    BORE SIZE METRIC:
    87.00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    487 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    86.92 MM
    STROKE LENGTH METRIC:
    82.00 MM
    $234.95
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • WISECO Piston 478M08750

    WISECO Piston 478M08750

    WISECO

    $234.95
    WISECO Piston 478M08750Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    478M08750
    SKU:
    478M08750
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    87.50 MM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    82.00 MM
    BORE - OVERSIZE:
    +0,50 MM
    DISPLACEMENT:
    487 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    87.42 MM
    SKIRT COATING:
    NON-COATED
    $234.95
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • WISECO Piston 466M06700

    WISECO Piston 466M06700

    WISECO

    $199.95
    WISECO Piston 466M06700Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    466M06700
    SKU:
    466M06700
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    67.00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PISTON DIAMETER METRIC:
    66.95 MM
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    72.00 MM
    DISPLACEMENT:
    246 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • WISECO Piston 4577M09800

    WISECO Piston 4577M09800

    WISECO

    $239.95
    WISECO Piston 4577M09800Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    4577M09800
    SKU:
    4577M09800
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    BORE - OVERSIZE:
    +1,00 MM
    COMPRESSION RATIO IMPERIAL:
    9.0:1
    BORE - OVERSIZE METRIC:
    +1.00 MM
    PISTON DIAMETER METRIC:
    97.92 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    DISPLACEMENT:
    591 CC
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    STROKE LENGTH METRIC:
    80.00 MM
    BORE SIZE METRIC:
    98.00 MM
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    $239.95
    Qty in Cart: 0
    Quantity:
    Price:
    $239.95
    Subtotal:
  • WISECO Piston 457M05000

    WISECO Piston 457M05000

    WISECO

    $161.95
    WISECO Piston 457M05000Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips
    457M05000
    SKU:
    457M05000
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    42.00 MM
    BORE SIZE METRIC:
    50.00 MM
    DISPLACEMENT:
    79 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,00 MM
    PRODUCT NAME:
    PISTON KIT
    PISTON DIAMETER METRIC:
    49.95 MM
    $161.95
    Qty in Cart: 0
    Quantity:
    Price:
    $161.95
    Subtotal:
  • On Sale
    WISECO Piston Kit - Racer Elite RE924M04900

    WISECO Piston Kit - Racer Elite RE924M04900

    WISECO

    MSRP: $127.98
    Now: $82.00
    Was: $136.94
    WISECO Piston Kit Racer Elite RE924M04900The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...
    09105089
    SKU:
    09105089
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    49.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    UNITS:
    KIT
    PISTON MATERIAL:
    2000 SERIES ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORFIT™
    MSRP: $127.98
    Now: $82.00
    Was: $136.94
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $127.98
    Now: $82.00
    Was: $136.94
    Subtotal:
  • WISECO Piston Kit - Racer Elite RE924M05050

    WISECO Piston Kit - Racer Elite RE924M05050

    WISECO

    $149.95
    WISECO Piston Kit Racer Elite RE924M05050The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...
    09105091
    SKU:
    09105091
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORFIT™
    PISTON MATERIAL:
    FORGED
    BORE SIZE METRIC:
    50.50 MM
    PISTON MATERIAL:
    2000 SERIES ALLOY
    BORE - OVERSIZE:
    +2,00 MM
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    UNITS:
    KIT
    $149.95
    Qty in Cart: 0
    Quantity:
    Price:
    $149.95
    Subtotal:
  • WISECO Piston Kit - Racer Elite RE907M05300

    WISECO Piston Kit - Racer Elite RE907M05300

    WISECO

    $139.95
    WISECO Piston Kit Racer Elite RE907M05300The most advanced forged 2-stroke piston available provides premium performance and durability, 2000 Series alloy provides extreme strength for extreme conditions, ArmorPlating™ for protection from harmful...
    09105093
    SKU:
    09105093
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    SKIRT COATING:
    ARMORFIT™
    BORE - OVERSIZE:
    +0,50 MM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    53.00 MM
    PISTON MATERIAL:
    2000 SERIES ALLOY
    PISTON MATERIAL:
    FORGED
    $139.95
    Qty in Cart: 0
    Quantity:
    Price:
    $139.95
    Subtotal:
  • WOSSNER Connecting Rod - YZ250F P4072

    WOSSNER Connecting Rod - YZ250F P4072

    WOSSNER

    $164.95
    WOSSNER Connecting Rod YZ250F P4072Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230562
    SKU:
    09230562
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    STYLE:
    STANDARD
    UNITS:
    KIT
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    Qty in Cart: 0
    Quantity:
    Price:
    $164.95
    Subtotal:
  • WOSSNER Connecting Rod - KTM85XS P2006

    WOSSNER Connecting Rod - KTM85XS P2006

    WOSSNER

    $98.95
    WOSSNER Connecting Rod KTM85XS P2006Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230570
    SKU:
    09230570
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    STYLE:
    STANDARD
    $98.95
    Qty in Cart: 0
    Quantity:
    Price:
    $98.95
    Subtotal:
  • WOSSNER Connecting Rod - CR125 P2040

    WOSSNER Connecting Rod - CR125 P2040

    WOSSNER

    $120.95
    WOSSNER Connecting Rod CR125 P2040Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230571
    SKU:
    09230571
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - CR500 P2044

    WOSSNER Connecting Rod - CR500 P2044

    WOSSNER

    $152.00
    WOSSNER Connecting Rod CR500 P2044Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230572
    SKU:
    09230572
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • WOSSNER Connecting Rod - YZ125 P2047

    WOSSNER Connecting Rod - YZ125 P2047

    WOSSNER

    $120.95
    WOSSNER Connecting Rod YZ125 P2047Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230573
    SKU:
    09230573
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - KX60 P2001

    WOSSNER Connecting Rod - KX60 P2001

    WOSSNER

    $98.95
    WOSSNER Connecting Rod KX60 P2001Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230388
    SKU:
    09230388
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    $98.95
    Qty in Cart: 0
    Quantity:
    Price:
    $98.95
    Subtotal:
  • WOSSNER Connecting Rod - CR250 P2021

    WOSSNER Connecting Rod - CR250 P2021

    WOSSNER

    $120.95
    WOSSNER Connecting Rod CR250 P2021Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230389
    SKU:
    09230389
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    STYLE:
    STANDARD
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - KX125 P2033

    WOSSNER Connecting Rod - KX125 P2033

    WOSSNER

    $122.00
    WOSSNER Connecting Rod KX125 P2033Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230391
    SKU:
    09230391
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    $122.00
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • WOSSNER Connecting Rod - 300EXC P2024

    WOSSNER Connecting Rod - 300EXC P2024

    WOSSNER

    $120.95
    WOSSNER Connecting Rod 300EXC P2024Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    09230392
    SKU:
    09230392
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • Total: items /

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Dirt Bike Engine Parts

Keep your dirt bike running smoothly and prolong the life of its engine with essential general maintenance. But when parts start to break down, don't let it stop you from getting out on the trails! JJ Motorsports has all that you need for minor jobs like oil changes or major overhauls such as a complete rebuild - carrying top aftermarket brands . Get back in gear faster by shopping our full line of high-quality dirt bike engine parts here today at JJ Motorsports!

 

At JJ Motorsports, we want to make sure you don't miss out on the ride! If your motor has blown or radiator smashed, our gearheads can help get you back in the seat. We carry piston kits from top brands like Wiseco and Wrench Rabbit engine kits so that riders have access to a wide range of parts for their dirt bike engine rebuilds. Plus – with gaskets at-the-ready when it comes time for any leakages - no need to worry about maintenance issues either; simply stay up on oil & filter changes and let us take care of everything else. Got queries? Just give one of our knowledgeable staff members a call at 1-231‐767‐5055 where they'll be more than happy provide advice, instructions and tailored answers catered just for YOU!