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 - Kawasaki - Standard 369M04950

    WISECO Piston - Kawasaki - Standard 369M04950

    WISECO

    $139.95
    WISECO Piston Kawasaki Standard 369M04950Forged 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...
    369M04950
    SKU:
    369M04950
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    49.50 MM
    DISPLACEMENT:
    99 CC
    PISTON DIAMETER METRIC:
    49.45 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    51.80 MM
    $139.95
    Qty in Cart: 0
    Quantity:
    Price:
    $139.95
    Subtotal:
  • WISECO Piston - Yamaha - .50mm 374M06650

    WISECO Piston - Yamaha - .50mm 374M06650

    WISECO

    $154.95
    WISECO Piston Yamaha .50mm 374M06650Forged 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...
    374M06650
    SKU:
    374M06650
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    50.00 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    66.50 MM
    DISPLACEMENT:
    172 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    66.45 MM
    BORE - OVERSIZE:
    +0,50 MM
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston - Yamaha - 1.0mm 374M06700

    WISECO Piston - Yamaha - 1.0mm 374M06700

    WISECO

    $154.95
    WISECO Piston Yamaha 1.0mm 374M06700Forged 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...
    374M06700
    SKU:
    374M06700
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    67.00 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,00 MM
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    50.00 MM
    DISPLACEMENT:
    172 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    66.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston - Yamaha - .50mm 394M08550

    WISECO Piston - Yamaha - .50mm 394M08550

    WISECO

    $209.95
    WISECO Piston Yamaha .50mm 394M08550Forged 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...
    394M08550
    SKU:
    394M08550
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    BORE - OVERSIZE:
    +0,50 MM
    BORE SIZE METRIC:
    85.50 MM
    DISPLACEMENT:
    397 CC
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE METRIC:
    +0.50 MM
    PISTON DIAMETER METRIC:
    85.42 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    70.00 MM
    $209.95
    Qty in Cart: 0
    Quantity:
    Price:
    $209.95
    Subtotal:
  • WISECO Piston Kit 40074M07800

    WISECO Piston Kit 40074M07800

    WISECO

    $244.95
    WISECO Piston Kit 40074M07800Pistons come without gasket kit
    09103166
    SKU:
    09103166
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    STROKE LENGTH METRIC:
    52.30 MM
    COMPRESSION RATIO IMPERIAL:
    13.9:1
    DISPLACEMENT:
    250 CC
    RIDING STYLE:
    STREET
    BORE SIZE METRIC:
    78.00 MM
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $244.95
    Subtotal:
  • WISECO Piston - .50mm 456M04950

    WISECO Piston - .50mm 456M04950

    WISECO

    $134.95
    WISECO Piston .50mm 456M04950Forged 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...
    456M04950
    SKU:
    456M04950
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE:
    +0,50 MM
    PISTON DIAMETER METRIC:
    49.45 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    STROKE LENGTH METRIC:
    42.00 MM
    BORE SIZE METRIC:
    49.50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE METRIC:
    +0.50 MM
    DISPLACEMENT:
    79 CC
    $134.95
    Qty in Cart: 0
    Quantity:
    Price:
    $134.95
    Subtotal:
  • WISECO Piston - 1mm 456M05000

    WISECO Piston - 1mm 456M05000

    WISECO

    $134.95
    WISECO Piston 1mm 456M05000Forged 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...
    456M05000
    SKU:
    456M05000
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    DISPLACEMENT:
    79 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    49.95 MM
    BORE SIZE METRIC:
    50.00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    42.00 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $134.95
    Qty in Cart: 0
    Quantity:
    Price:
    $134.95
    Subtotal:
  • WISECO Piston Kit - Racer Elite RE922M05400

    WISECO Piston Kit - Racer Elite RE922M05400

    WISECO

    $204.95
    WISECO Piston Kit Racer Elite RE922M05400The 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...
    09105080
    SKU:
    09105080
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORFIT™
    BORE SIZE METRIC:
    54.00 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    2000 SERIES ALLOY
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    RACER ELITE
    $204.95
    Qty in Cart: 0
    Quantity:
    Price:
    $204.95
    Subtotal:
  • WISECO Piston 4577M09700

    WISECO Piston 4577M09700

    WISECO

    $239.95
    WISECO Piston 4577M09700Forged 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
    4577M09700
    SKU:
    4577M09700
    Availability:
    Ships Same Business Day
    Weight:
    1.35 LBS
    COMPRESSION RATIO IMPERIAL:
    9.0:1
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    STROKE LENGTH METRIC:
    80.00 MM
    DISPLACEMENT:
    591 CC
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    97 MM
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    96.92 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    $239.95
    Qty in Cart: 0
    Quantity:
    Price:
    $239.95
    Subtotal:
  • WISECO Piston 4577M09750

    WISECO Piston 4577M09750

    WISECO

    $239.95
    WISECO Piston 4577M09750Forged 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
    4577M09750
    SKU:
    4577M09750
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    DISPLACEMENT:
    591 CC
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    97.50 MM
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    COMPRESSION RATIO IMPERIAL:
    9.0:1
    PISTON DIAMETER METRIC:
    97.42 MM
    STROKE LENGTH METRIC:
    80.00 MM
    $239.95
    Qty in Cart: 0
    Quantity:
    Price:
    $239.95
    Subtotal:
  • WOSSNER Connecting Rod - KX125 P2034

    WOSSNER Connecting Rod - KX125 P2034

    WOSSNER

    $120.95
    WOSSNER Connecting Rod KX125 P2034Connecting 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...
    09230395
    SKU:
    09230395
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - CR250 P2020

    WOSSNER Connecting Rod - CR250 P2020

    WOSSNER

    $120.95
    WOSSNER Connecting Rod CR250 P2020Connecting 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...
    09230396
    SKU:
    09230396
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - CR80 P2003

    WOSSNER Connecting Rod - CR80 P2003

    WOSSNER

    $98.95
    WOSSNER Connecting Rod CR80 P2003Connecting 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...
    09230397
    SKU:
    09230397
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    $98.95
    Qty in Cart: 0
    Quantity:
    Price:
    $98.95
    Subtotal:
  • WOSSNER Connecting Rod - KX85/100 P2005

    WOSSNER Connecting Rod - KX85/100 P2005

    WOSSNER

    $98.95
    WOSSNER Connecting Rod KX85/100 P2005Connecting 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...
    09230398
    SKU:
    09230398
    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
    $98.95
    Qty in Cart: 0
    Quantity:
    Price:
    $98.95
    Subtotal:
  • On Sale
    WOSSNER Connecting Rod - RM85 P2007

    WOSSNER Connecting Rod - RM85 P2007

    WOSSNER

    MSRP: $98.95
    Now: $59.00
    Was: $98.95
    WOSSNER Connecting Rod RM85 P2007Connecting 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...
    09230399
    SKU:
    09230399
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    MSRP: $98.95
    Now: $59.00
    Was: $98.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $98.95
    Now: $59.00
    Was: $98.95
    Subtotal:
  • WOSSNER Connecting Rod - YZ80 P2008

    WOSSNER Connecting Rod - YZ80 P2008

    WOSSNER

    $98.95
    WOSSNER Connecting Rod YZ80 P2008Connecting 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...
    09230400
    SKU:
    09230400
    Availability:
    Ships Same Business Day
    Weight:
    0.55 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 P2010

    WOSSNER Connecting Rod - CR125 P2010

    WOSSNER

    $120.95
    WOSSNER Connecting Rod CR125 P2010Connecting 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...
    09230401
    SKU:
    09230401
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - RM125 P2015

    WOSSNER Connecting Rod - RM125 P2015

    WOSSNER

    $120.95
    WOSSNER Connecting Rod RM125 P2015Connecting 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...
    09230405
    SKU:
    09230405
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - RM125 P2016

    WOSSNER Connecting Rod - RM125 P2016

    WOSSNER

    $120.95
    WOSSNER Connecting Rod RM125 P2016Connecting 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...
    09230406
    SKU:
    09230406
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - YZ125 P2018

    WOSSNER Connecting Rod - YZ125 P2018

    WOSSNER

    $120.95
    WOSSNER Connecting Rod YZ125 P2018Connecting 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...
    09230407
    SKU:
    09230407
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    $120.95
    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!