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 Kit - YZ80 646M04900

    WISECO Piston Kit - YZ80 646M04900

    WISECO

    $144.95
    WISECO Piston Kit YZ80 646M04900Pistons come without gasket kit
    9102868
    SKU:
    9102868
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE:
    +2,00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    +2.00 MM
    BORE SIZE METRIC:
    49.00 MM
    DISPLACEMENT:
    90 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    47.80 MM
    $144.95
    Qty in Cart: 0
    Quantity:
    Price:
    $144.95
    Subtotal:
  • WISECO Piston Kit - KX125 652M05500

    WISECO Piston Kit - KX125 652M05500

    WISECO

    $157.28
    WISECO Piston Kit KX125 652M05500Pistons come without gasket kit
    9102869
    SKU:
    9102869
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    DISPLACEMENT:
    129 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    BORE SIZE METRIC:
    55.00 MM
    PISTON MATERIAL:
    FORGED
    STROKE LENGTH METRIC:
    54.50 MM
    BORE - OVERSIZE:
    +1,00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $157.28
    Subtotal:
  • WISECO Piston Kit - KX125 652M05600

    WISECO Piston Kit - KX125 652M05600

    WISECO

    $179.95
    WISECO Piston Kit KX125 652M05600Pistons come without gasket kit
    9102870
    SKU:
    9102870
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    BORE - OVERSIZE:
    +2,00 MM
    BORE SIZE METRIC:
    56.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    UNITS:
    EACH
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    54.50 MM
    DISPLACEMENT:
    134 CC
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • WISECO Piston - Honda - 1.50mm 339M05750

    WISECO Piston - Honda - 1.50mm 339M05750

    WISECO

    $206.95
    WISECO Piston Honda 1.50mm 339M05750Forged 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...
    339M05750
    SKU:
    339M05750
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $206.95
    Subtotal:
  • WISECO Piston - Suzuki - 1.0mm 449M05700

    WISECO Piston - Suzuki - 1.0mm 449M05700

    WISECO

    $154.95
    WISECO Piston Suzuki 1.0mm 449M05700Forged 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...
    449M05700
    SKU:
    449M05700
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    STROKE LENGTH METRIC:
    50.00 MM
    BORE - OVERSIZE:
    +1,00 MM
    BORE SIZE METRIC:
    57.00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    123 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    56.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston - Honda - 1.0mm 448M05650

    WISECO Piston - Honda - 1.0mm 448M05650

    WISECO

    $154.95
    WISECO Piston Honda 1.0mm 448M05650Forged 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...
    448M05650
    SKU:
    448M05650
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    56.50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    56.44 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +1.00 MM
    DISPLACEMENT:
    123 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    DISPLACEMENT:
    120 CC
    BORE - OVERSIZE:
    +1,00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    50.00 MM
    UNITS:
    KIT
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston - Honda - 2.0mm 448M05750

    WISECO Piston - Honda - 2.0mm 448M05750

    WISECO

    $179.95
    WISECO Piston Honda 2.0mm 448M05750Forged 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...
    448M05750
    SKU:
    448M05750
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE METRIC:
    +2.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    57.44 MM
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    123 CC
    MODEL:
    FORGED SERIES
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    50.00 MM
    BORE - OVERSIZE:
    +2,00 MM
    DISPLACEMENT:
    120 CC
    BORE SIZE METRIC:
    57.50 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $179.95
    Subtotal:
  • WISECO Piston - Honda - Standard 4466M07300

    WISECO Piston - Honda - Standard 4466M07300

    WISECO

    $194.95
    WISECO Piston Honda Standard 4466M07300Forged 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...
    4466M07300
    SKU:
    4466M07300
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE SIZE METRIC:
    73.00 MM
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON DIAMETER METRIC:
    72.95 MM
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    STROKE LENGTH METRIC:
    59.50 MM
    BORE - OVERSIZE:
    STANDARD
    DISPLACEMENT:
    250 CC
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    $194.95
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • WISECO Piston - Honda - .50mm 4466M07350

    WISECO Piston - Honda - .50mm 4466M07350

    WISECO

    $194.95
    WISECO Piston Honda .50mm 4466M07350Forged 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...
    4466M07350
    SKU:
    4466M07350
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    PISTON DIAMETER METRIC:
    73.45 MM
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    73.50 MM
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    STROKE LENGTH METRIC:
    59.50 MM
    DISPLACEMENT:
    250 CC
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    $194.95
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • WISECO Piston - Honda - 1mm 4466M07400

    WISECO Piston - Honda - 1mm 4466M07400

    WISECO

    $194.95
    WISECO Piston Honda 1mm 4466M07400Forged 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...
    4466M07400
    SKU:
    4466M07400
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    74.00 MM
    DISPLACEMENT:
    250 CC
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +1,00 MM
    PISTON DIAMETER METRIC:
    73.95 MM
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    STROKE LENGTH METRIC:
    59.50 MM
    $194.95
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • WISECO Piston - Kawasaki - Standard 446M04800

    WISECO Piston - Kawasaki - Standard 446M04800

    WISECO

    $133.09
    WISECO Piston Kawasaki Standard 446M04800Forged 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...
    446M04800
    SKU:
    446M04800
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $133.09
    Subtotal:
  • WISECO Piston 4689M07300

    WISECO Piston 4689M07300

    WISECO

    $187.34
    WISECO Piston 4689M07300Forged 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
    4689M07300
    SKU:
    4689M07300
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $187.34
    Subtotal:
  • WISECO Piston 4689M07350

    WISECO Piston 4689M07350

    WISECO

    $194.95
    WISECO Piston 4689M07350Forged 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
    4689M07350
    SKU:
    4689M07350
    Availability:
    Ships Same Business Day
    Weight:
    0.66 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    73.50 MM
    DISPLACEMENT:
    249 CC
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    COMPRESSION RATIO IMPERIAL:
    10.5:1
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    73.45 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    ENGINE TYPE:
    4-STROKE
    STROKE LENGTH METRIC:
    59.60 MM
    BORE - OVERSIZE:
    +0,50 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $194.95
    Qty in Cart: 0
    Quantity:
    Price:
    $194.95
    Subtotal:
  • WISECO Piston Kit - Racer Elite - YZ450F RE809M09700

    WISECO Piston Kit - Racer Elite - YZ450F RE809M09700

    WISECO

    $379.95
    WISECO Piston Kit Racer Elite YZ450F RE809M09700R&D developed to provide dyno-proven power gains, Asymmetric skirt design for improved wear and even loading on major thrust skirt, Precision fit ring; custom-lapped compression ring for improved power,...
    9105065
    SKU:
    9105065
    Availability:
    Ships Same Business Day
    Weight:
    0.98 LBS
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORGLIDE®
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    97.00 MM
    COMPRESSION RATIO IMPERIAL:
    14.0:1
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $379.95
    Qty in Cart: 0
    Quantity:
    Price:
    $379.95
    Subtotal:
  • WISECO Piston 4693M09500

    WISECO Piston 4693M09500

    WISECO

    $239.95
    WISECO Piston 4693M09500Forged 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
    4693M09500
    SKU:
    4693M09500
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    DISPLACEMENT:
    426 CC
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    94.92 MM
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    95.00 MM
    PISTON MATERIAL:
    FORGED 2618 ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    STROKE LENGTH METRIC:
    60.10 MM
    $239.95
    Qty in Cart: 0
    Quantity:
    Price:
    $239.95
    Subtotal:
  • WISECO Piston 469M06600

    WISECO Piston 469M06600

    WISECO

    $154.95
    WISECO Piston 469M06600Forged 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
    469M06600
    SKU:
    469M06600
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    DISPLACEMENT:
    173 CC
    PISTON DIAMETER METRIC:
    65.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    STROKE LENGTH METRIC:
    50.60 MM
    BORE SIZE METRIC:
    66.00 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston 469M06700

    WISECO Piston 469M06700

    WISECO

    $154.95
    WISECO Piston 469M06700Forged 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
    469M06700
    SKU:
    469M06700
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    BORE - OVERSIZE:
    +1,00 MM
    DISPLACEMENT:
    173 CC
    PISTON DIAMETER METRIC:
    66.95 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    STROKE LENGTH METRIC:
    50.60 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    67.00 MM
    ENGINE TYPE:
    2-STROKE
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    MODEL:
    FORGED SERIES
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston Kit - Racer Elite - YZ450F RE815M09700

    WISECO Piston Kit - Racer Elite - YZ450F RE815M09700

    WISECO

    $379.95
    WISECO Piston Kit Racer Elite YZ450F RE815M09700R&D developed to provide dyno-proven power gains, Asymmetric skirt design for improved wear and even loading on major thrust skirt, Precision fit ring; custom-lapped compression ring for improved power,...
    9105068
    SKU:
    9105068
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE SIZE METRIC:
    97 MM
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    14.0:1
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    KIT
    PRODUCT NAME:
    PISTON KIT
    $379.95
    Qty in Cart: 0
    Quantity:
    Price:
    $379.95
    Subtotal:
  • WISECO Piston - Yamaha - 1.50mm 451M08650

    WISECO Piston - Yamaha - 1.50mm 451M08650

    WISECO

    $244.95
    WISECO Piston Yamaha 1.50mm 451M08650Forged 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...
    451M08650
    SKU:
    451M08650
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    DISPLACEMENT:
    465 CC
    BORE - OVERSIZE:
    +1,50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE METRIC:
    +1.50 MM
    MODEL:
    FORGED SERIES
    BORE SIZE METRIC:
    86.50 MM
    PISTON DIAMETER METRIC:
    86.42 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    82.00 MM
    UNITS:
    KIT
    $244.95
    Qty in Cart: 0
    Quantity:
    Price:
    $244.95
    Subtotal:
  • WISECO Piston Kit - Racer Elite - KX250F RE801M07700

    WISECO Piston Kit - Racer Elite - KX250F RE801M07700

    WISECO

    $371.41
    WISECO Piston Kit Racer Elite KX250F RE801M07700R&D developed to provide dyno-proven power gains, Asymmetric skirt design for improved wear and even loading on major thrust skirt, Precision fit ring; custom-lapped compression ring for improved power,...
    9105070
    SKU:
    9105070
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    14.5:1
    BORE SIZE METRIC:
    77.00 MM
    PRODUCT NAME:
    PISTON KIT
    SKIRT COATING:
    ARMORGLIDE®
    $371.41
    Qty in Cart: 0
    Quantity:
    Price:
    $371.41
    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!