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!

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  • WISECO Piston - Honda - 1.0mm 871M09000

    WISECO Piston - Honda - 1.0mm 871M09000

    WISECO

    $234.95
    WISECO Piston Honda 1.0mm 871M09000Pistons come without gasket kit
    09102024
    SKU:
    09102024
    Availability:
    Ships Same Business Day
    Weight:
    1.27 LBS
    DISPLACEMENT:
    472 CC
    PISTON MATERIAL:
    FORGED
    STROKE LENGTH METRIC:
    79.00 MM
    BORE - OVERSIZE METRIC:
    +1.00 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON
    SKIRT COATING:
    ARMORGLIDE®
    UNITS:
    EACH
    BORE - OVERSIZE:
    +1,00 MM
    BORE SIZE METRIC:
    90.00 MM
    RIDING STYLE:
    OFF-ROAD
    DISPLACEMENT:
    491 CC
    PISTON MATERIAL:
    ALUMINUM
    $234.95
    Qty in Cart: 0
    Quantity:
    Price:
    $234.95
    Subtotal:
  • WISECO Piston Kit - Standard 4840M04700

    WISECO Piston Kit - Standard 4840M04700

    WISECO

    $154.95
    WISECO Piston Kit Standard 4840M04700Pistons come without gasket kit
    09100368
    SKU:
    09100368
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    51.80 MM
    COMPRESSION RATIO IMPERIAL:
    11.0:1
    DISPLACEMENT:
    90 CC
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    UNITS:
    EACH
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    47.00 MM
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    $154.95
    Qty in Cart: 0
    Quantity:
    Price:
    $154.95
    Subtotal:
  • WISECO Piston Kit with Gaskets PK1365

    WISECO Piston Kit with Gaskets PK1365

    WISECO

    $324.95
    WISECO Piston Kit with Gaskets PK1365Most Wiseco 2-cycle pistons are forged from high-silicone bar stock, Greater strength and lower expansion at high temperatures, Complete piston kits include High-Performance forged pistons, rings, wrist pins, circlips...
    09030567
    SKU:
    09030567
    Availability:
    Ships Same Business Day
    Weight:
    1.80 LBS
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    62.10 MM
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE SIZE METRIC:
    96.00 MM
    ENGINE TYPE:
    4-STROKE
    MODEL:
    FORGED SERIES
    TYPE:
    TOP END
    PISTON MATERIAL:
    2618 ALUMINUM ALLOY
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    DISPLACEMENT:
    449 CC
    PISTON DIAMETER METRIC:
    95.94 MM
    PRODUCT NAME:
    REBUILD KIT
    SKIRT COATING:
    ARMORGLIDE®
    $324.95
    Qty in Cart: 0
    Quantity:
    Price:
    $324.95
    Subtotal:
  • WISECO Piston - Yamaha - .50mm 234M07050

    WISECO Piston - Yamaha - .50mm 234M07050

    WISECO

    $199.95
    WISECO Piston Yamaha .50mm 234M07050Forged 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...
    234M07050
    SKU:
    234M07050
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    64.00 MM
    DISPLACEMENT:
    246 CC
    ENGINE TYPE:
    2-STROKE
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    70.45 MM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    BORE - OVERSIZE:
    +0,50 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    70.50 MM
    SKIRT COATING:
    NON-COATED
    UNITS:
    KIT
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • WISECO Piston Kit - Standard - KX 250 F 40020M07700

    WISECO Piston Kit - Standard - KX 250 F 40020M07700

    WISECO

    $264.95
    WISECO Piston Kit Standard KX 250 F 40020M07700Pistons come without gasket kit
    09102896
    SKU:
    09102896
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    77.00 MM
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    STROKE LENGTH METRIC:
    53.60 MM
    UNITS:
    EACH
    COMPRESSION RATIO IMPERIAL:
    14.5:1
    DISPLACEMENT:
    250 CC
    $264.95
    Qty in Cart: 0
    Quantity:
    Price:
    $264.95
    Subtotal:
  • WISECO Piston - +2.00 mm 234M07200

    WISECO Piston - +2.00 mm 234M07200

    WISECO

    $224.95
    WISECO Piston +2.00 mm 234M07200Forged 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...
    234M07200
    SKU:
    234M07200
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE:
    +2,00 MM
    MODEL:
    FORGED SERIES
    PISTON DIAMETER METRIC:
    71.95 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    SKIRT COATING:
    NON-COATED
    BORE - OVERSIZE METRIC:
    +2.00 MM
    BORE SIZE METRIC:
    72.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STROKE LENGTH METRIC:
    64.00 MM
    DISPLACEMENT:
    246 CC
    PRODUCT NAME:
    PISTON KIT
    $224.95
    Qty in Cart: 0
    Quantity:
    Price:
    $224.95
    Subtotal:
  • WISECO Piston Kit - KTM 500 EXC 40064M09500

    WISECO Piston Kit - KTM 500 EXC 40064M09500

    WISECO

    $254.95
    WISECO Piston Kit KTM 500 EXC 40064M09500Pistons come without gasket kit
    09102898
    SKU:
    09102898
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE SIZE METRIC:
    95.00 MM
    STROKE LENGTH METRIC:
    72.00 MM
    COMPRESSION RATIO IMPERIAL:
    11.8:1
    PISTON MATERIAL:
    FORGED
    DISPLACEMENT:
    510 CC
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $254.95
    Qty in Cart: 0
    Quantity:
    Price:
    $254.95
    Subtotal:
  • WISECO Piston - Yamaha - 1.0mm 235M05300

    WISECO Piston - Yamaha - 1.0mm 235M05300

    WISECO

    $166.95
    WISECO Piston Yamaha 1.0mm 235M05300Forged 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...
    235M05300
    SKU:
    235M05300
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    DISPLACEMENT:
    98 CC
    ENGINE TYPE:
    2-STROKE
    PISTON DIAMETER METRIC:
    52.95 MM
    BORE SIZE METRIC:
    53.00 MM
    BORE - OVERSIZE:
    +1,00 MM
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    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:
    45.60 MM
    $166.95
    Qty in Cart: 0
    Quantity:
    Price:
    $166.95
    Subtotal:
  • WISECO Piston - Yamaha - .50mm 232M08550

    WISECO Piston - Yamaha - .50mm 232M08550

    WISECO

    $209.95
    WISECO Piston Yamaha .50mm 232M08550Forged 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...
    232M08550
    SKU:
    232M08550
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    MODEL:
    FORGED SERIES
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    KIT
    BORE SIZE METRIC:
    85.50 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +0.50 MM
    PISTON DIAMETER METRIC:
    85.42 MM
    BORE - OVERSIZE:
    +0,50 MM
    DISPLACEMENT:
    397 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    4032 ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    SKIRT COATING:
    NON-COATED
    STROKE LENGTH METRIC:
    70.00 MM
    $209.95
    Qty in Cart: 0
    Quantity:
    Price:
    $209.95
    Subtotal:
  • ACERBIS X-Power Cover Kit - Black - Honda 2791950001

    ACERBIS X-Power Cover Kit - Black - Honda 2791950001

    ACERBIS

    $69.95
    ACERBIS X-Power Cover Kit Black Honda 2791950001Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil cap and...
    09401891
    SKU:
    09401891
    Availability:
    Ships Same Business Day
    Weight:
    1.45 LBS
    MODEL:
    X-POWER
    COLOR/FINISH:
    BLACK
    MATERIAL:
    PLASTIC
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    ENGINE
    PRODUCT NAME:
    COVER
    PRODUCT NAME:
    COVER KIT
    $69.95
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • ACERBIS X-Power Cover Kit - White - KTM/Husqvarna 2731970002

    ACERBIS X-Power Cover Kit - White - KTM/Husqvarna 2731970002

    ACERBIS

    $67.95
    ACERBIS X-Power Cover Kit White KTM/Husqvarna 2731970002Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil cap...
    09401762
    SKU:
    09401762
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    COLOR/FINISH:
    WHITE
    MATERIAL:
    PLASTIC
    PRODUCT NAME:
    COVER
    TYPE:
    ENGINE
    MODEL:
    X-POWER
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    $67.95
    Qty in Cart: 0
    Quantity:
    Price:
    $67.95
    Subtotal:
  • ACERBIS X-Power Cover Kit - Orange - KTM/Husqvarna 2645515226

    ACERBIS X-Power Cover Kit - Orange - KTM/Husqvarna 2645515226

    ACERBIS

    $69.95
    ACERBIS X-Power Cover Kit Orange KTM/Husqvarna 2645515226Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil...
    09401763
    SKU:
    09401763
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    COLOR/FINISH:
    ORANGE
    PRODUCT NAME:
    COVER
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MATERIAL:
    PLASTIC
    MODEL:
    X-POWER
    RIDING STYLE:
    STREET
    TYPE:
    ENGINE
    $69.95
    Qty in Cart: 0
    Quantity:
    Price:
    $69.95
    Subtotal:
  • ACERBIS X-Power Cover Kit - White - KTM/Husqvarna 2645510002

    ACERBIS X-Power Cover Kit - White - KTM/Husqvarna 2645510002

    ACERBIS

    $67.95
    ACERBIS X-Power Cover Kit White KTM/Husqvarna 2645510002Engine crankcase and Ignition/clutch cover, Protects against dirt, debris and impact, Installs easily with stock crankcase and Ignition/clutch cover bolts, Molded openings for easy access to oil cap...
    09401765
    SKU:
    09401765
    Availability:
    Ships Same Business Day
    Weight:
    1.45 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    COLOR/FINISH:
    WHITE
    MODEL:
    X-POWER
    RIDING STYLE:
    STREET
    MATERIAL:
    PLASTIC
    PRODUCT NAME:
    COVER
    TYPE:
    ENGINE
    $67.95
    Qty in Cart: 0
    Quantity:
    Price:
    $67.95
    Subtotal:
  • K & N Oil Filter KN-556

    K & N Oil Filter KN-556

    K & N

    $15.30
    K & N Oil Filter KN-556K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration...
    07120118
    SKU:
    07120118
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    LENGTH METRIC:
    105 MM
    PRODUCT NAME:
    OIL FILTER
    COLOR/FINISH:
    RED
    FILTER MEDIA MATERIAL:
    SYNTHETIC
    RIDING STYLE:
    SNOW
    STYLE:
    STANDARD
    TYPE:
    CARTRIDGE
    BASE COLOR:
    RED
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    BASE FINISH:
    NATURAL
    RIDING STYLE:
    WATERCRAFT
    $15.30
    Qty in Cart: 0
    Quantity:
    Price:
    $15.30
    Subtotal:
  • K & N Oil Filter KN-655

    K & N Oil Filter KN-655

    K & N

    $10.99
    K & N Oil Filter KN-655K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration...
    07120119
    SKU:
    07120119
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    BASE COLOR:
    YELLOW
    BASE FINISH:
    NATURAL
    FILTER MEDIA MATERIAL:
    SYNTHETIC
    PRODUCT NAME:
    OIL FILTER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    STYLE:
    STANDARD
    TYPE:
    CARTRIDGE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    COLOR/FINISH:
    YELLOW
    LENGTH METRIC:
    69 MM
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • K & N Oil Filter KN-611

    K & N Oil Filter KN-611

    K & N

    $10.99
    K & N Oil Filter KN-611K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration...
    07120388
    SKU:
    07120388
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BASE FINISH:
    NATURAL
    LENGTH METRIC:
    88 MM
    STYLE:
    STANDARD
    BASE COLOR:
    RED
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    OIL FILTER
    COLOR/FINISH:
    RED
    FILTER MEDIA MATERIAL:
    SYNTHETIC
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    TYPE:
    CARTRIDGE
    $10.99
    Qty in Cart: 0
    Quantity:
    Price:
    $10.99
    Subtotal:
  • K & N Oil Filter KN-183

    K & N Oil Filter KN-183

    K & N

    $14.99
    K & N Oil Filter KN-183K&N delivers a premium oil filter which is built with a synthetic media specifically designed to withstand the high concentrates of synthetic racing oils, A large filter media provides high-flow rates and outstanding oil filtration...
    07120500
    SKU:
    07120500
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BASE COLOR:
    BLACK
    BASE FINISH:
    COATED
    STYLE:
    PREMIUM
    LENGTH METRIC:
    78 MM
    PRODUCT NAME:
    OIL FILTER
    RIDING STYLE:
    STREET
    TYPE:
    SPIN-ON
    COLOR/FINISH:
    BLACK
    FEATURES:
    INCLUDES NUT
    FILTER MEDIA MATERIAL:
    SYNTHETIC
    UNITS:
    EACH
    $14.99
    Qty in Cart: 0
    Quantity:
    Price:
    $14.99
    Subtotal:
  • MOOSE RACING Complete Gasket Kit with Oil Seal - KX 811417

    MOOSE RACING Complete Gasket Kit with Oil Seal - KX 811417

    MOOSE RACING

    $63.12
    MOOSE RACING Complete Gasket Kit with Oil Seal KX 811417Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil...
    09340875
    SKU:
    09340875
    Availability:
    Ships Same Business Day
    Weight:
    0.23 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    TYPE:
    ENGINE
    Qty in Cart: 0
    Quantity:
    Price:
    $63.12
    Subtotal:
  • MOOSE RACING Complete Gasket and Oil Seal Kit 811337

    MOOSE RACING Complete Gasket and Oil Seal Kit 811337

    MOOSE RACING

    $92.41
    MOOSE RACING Complete Gasket and Oil Seal Kit 811337Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil...
    09341905
    SKU:
    09341905
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    TYPE:
    ENGINE
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    $92.41
    Qty in Cart: 0
    Quantity:
    Price:
    $92.41
    Subtotal:
  • PARTS UNLIMITED Oil Filter T14-4017

    PARTS UNLIMITED Oil Filter T14-4017

    PARTS UNLIMITED

    $6.95
    PARTS UNLIMITED Oil Filter T14-4017Pro Series filters literally use the world's finest materials: German paper, English glue and Japanese zinc steel that meet or exceed OEM requirements, All necessary gaskets and o-rings are included with most filters
    07120532
    SKU:
    07120532
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BASE COLOR:
    ORANGE
    STYLE:
    STANDARD
    FILTER MEDIA MATERIAL:
    PAPER
    PRODUCT NAME:
    OIL FILTER
    COLOR/FINISH:
    ORANGE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    TYPE:
    CARTRIDGE
    UNITS:
    EACH
    $6.95
    Qty in Cart: 0
    Quantity:
    Price:
    $6.95
    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!