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Dirt Bike Engine

Dirt Bike Engine

Dirt Bike Engine

Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • MOOSE RACING Clutch Cover Gasket 816701

    MOOSE RACING Clutch Cover Gasket 816701

    MOOSE RACING

    $11.50
    MOOSE RACING Clutch Cover Gasket 816701Moose can now handle all your gasket and seal needs at a fraction of OEM cast, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmissions with total confidence as each...
    09341900
    SKU:
    09341900
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    $11.50
    Qty in Cart: 0
    Quantity:
    Price:
    $11.50
    Subtotal:
  • MOOSE RACING Cylinder - Standard - FC350 MSE50007

    MOOSE RACING Cylinder - Standard - FC350 MSE50007

    MOOSE RACING

    $264.95
    MOOSE RACING Cylinder Standard FC350 MSE50007Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows for...
    09310880
    SKU:
    09310880
    Availability:
    Ships Same Business Day
    Weight:
    2.60 LBS
    RIDING STYLE:
    OFF-ROAD
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    Qty in Cart: 0
    Quantity:
    Price:
    $264.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - KX250F MSE30012

    MOOSE RACING Cylinder - Standard - KX250F MSE30012

    MOOSE RACING

    $402.95
    MOOSE RACING Cylinder Standard KX250F MSE30012Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows for...
    09310881
    SKU:
    09310881
    Availability:
    Ships Same Business Day
    Weight:
    2.50 LBS
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    $402.95
    Qty in Cart: 0
    Quantity:
    Price:
    $402.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - YZ450F MSECW20012

    MOOSE RACING Cylinder - Standard - YZ450F MSECW20012

    MOOSE RACING

    $427.95
    MOOSE RACING Cylinder Standard YZ450F MSECW20012Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows...
    09310882
    SKU:
    09310882
    Availability:
    Ships Same Business Day
    Weight:
    3.35 LBS
    COLOR/FINISH:
    GRAY
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    CYLINDER DIAMETER METRIC:
    97.00 MM
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    STANDARD
    MATERIAL:
    ALUMINUM
    UNITS:
    EACH
    CYLINDER DIAMETER:
    97,00 MM
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    CAST
    PRODUCT NAME:
    CYLINDER
    DISPLACEMENT:
    450 CC
    $427.95
    Qty in Cart: 0
    Quantity:
    Price:
    $427.95
    Subtotal:
  • MOOSE RACING Cylinder - Standard - Suzuki MSECW40005

    MOOSE RACING Cylinder - Standard - Suzuki MSECW40005

    MOOSE RACING

    $358.95
    MOOSE RACING Cylinder Standard Suzuki MSECW40005Replace your damaged or worn OEM cylinder, Made from cast aluminum; nickel silicon carbide plated, Precision-machined and honed to OEM stock bore sizes, Extremely durable low-friction bore surface allows...
    09310974
    SKU:
    09310974
    Availability:
    Ships Same Business Day
    Weight:
    2.35 LBS
    CYLINDER DIAMETER METRIC:
    77.00 MM
    UNITS:
    EACH
    CYLINDER DIAMETER:
    77,00 MM
    PRODUCT NAME:
    CYLINDER
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    STANDARD
    CYLINDER BORE COATING:
    NICKEL-SILICON CARBIDE
    DISPLACEMENT:
    250 CC
    MATERIAL:
    ALUMINUM
    COLOR/FINISH:
    GRAY
    ENGINE TYPE:
    4-CYCLE
    MATERIAL:
    CAST
    $358.95
    Qty in Cart: 0
    Quantity:
    Price:
    $358.95
    Subtotal:
  • MOOSE RACING Gasket Material 403-5031

    MOOSE RACING Gasket Material 403-5031

    MOOSE RACING

    $26.61
    MOOSE RACING Gasket Material 403-5031Comes with two sheets of gasket material - 1/32” (.032”) thick x 11.5” wide x 15.5” long, Material is premium compressed sheet, manufactured with aramid and other synthetic fibers and uses an NBR (Nitrile Butadiene...
    09344727
    SKU:
    09344727
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    RIDING STYLE:
    OFF-ROAD
    THICKNESS IMPERIAL:
    0.032'
    PRODUCT NAME:
    GASKET MATERIAL
    TYPE:
    BULK
    MATERIAL:
    ARAMID FIBER
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    THICKNESS:
    0,032'
    UNITS:
    2 PACK
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    Qty in Cart: 0
    Quantity:
    Price:
    $26.61
    Subtotal:
  • MOOSE RACING Motor Gasket Kit with Seal - 125SX 811330

    MOOSE RACING Motor Gasket Kit with Seal - 125SX 811330

    MOOSE RACING

    $115.35
    MOOSE RACING Motor Gasket Kit with Seal 125SX 811330Moose 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...
    09341268
    SKU:
    09341268
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    TYPE:
    COMPLETE
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    TYPE:
    ENGINE
    $115.35
    Qty in Cart: 0
    Quantity:
    Price:
    $115.35
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - RMZ250 810568

    MOOSE RACING Top End Gasket Kit - RMZ250 810568

    MOOSE RACING

    $70.76
    MOOSE RACING Top End Gasket Kit RMZ250 810568Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as...
    09341269
    SKU:
    09341269
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    GASKET
    TYPE:
    TOP END
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    $70.76
    Qty in Cart: 0
    Quantity:
    Price:
    $70.76
    Subtotal:
  • MOOSE RACING Complete Motor Gasket Kit - YZ250 808669

    MOOSE RACING Complete Motor Gasket Kit - YZ250 808669

    MOOSE RACING

    $58.21
    MOOSE RACING Complete Motor Gasket Kit YZ250 808669Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total...
    09341517
    SKU:
    09341517
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    ENGINE
    PRODUCT NAME:
    GASKET
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    $58.21
    Qty in Cart: 0
    Quantity:
    Price:
    $58.21
    Subtotal:
  • MOOSE RACING Ignition Cover Gasket 816677

    MOOSE RACING Ignition Cover Gasket 816677

    MOOSE RACING

    $10.64
    MOOSE RACING Ignition Cover Gasket 816677Moose 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 seals are...
    09341459
    SKU:
    09341459
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    TYPE:
    IGNITION COVER
    $10.64
    Qty in Cart: 0
    Quantity:
    Price:
    $10.64
    Subtotal:
  • On Sale
    TMV Camchain Tensioner 138361060

    TMV Camchain Tensioner 138361060

    TMV

    MSRP: $110.95
    Now: $72.00
    Was: $110.95
    TMV Camchain Tensioner 138361060TMV Camchain Tensioner
    09220177
    SKU:
    09220177
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    TENSIONER
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CAM CHAIN
    MSRP: $110.95
    Now: $72.00
    Was: $110.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $110.95
    Now: $72.00
    Was: $110.95
    Subtotal:
  • TMV Flywheel Weight 310FW1209

    TMV Flywheel Weight 310FW1209

    TMV

    $152.95
    TMV Flywheel Weight 310FW1209Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220084
    SKU:
    09220084
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    MATERIAL:
    303 STAINLESS STEEL
    UNITS:
    EACH
    FEATURES:
    FLYWHEEL WEIGHT - 9 OZ.
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • TMV Flywheel Weight 310FW1211

    TMV Flywheel Weight 310FW1211

    TMV

    $152.95
    TMV Flywheel Weight 310FW1211Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220085
    SKU:
    09220085
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    FEATURES:
    FLYWHEEL WEIGHT - 11 OZ.
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    MATERIAL:
    303 STAINLESS STEEL
    $152.95
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • TMV Flywheel Weight 310FW1213

    TMV Flywheel Weight 310FW1213

    TMV

    $152.95
    TMV Flywheel Weight 310FW1213Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220086
    SKU:
    09220086
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    FEATURES:
    FLYWHEEL WEIGHT - 13 OZ.
    UNITS:
    EACH
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    303 STAINLESS STEEL
    $152.95
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • TMV Flywheel Weight 310FW1311

    TMV Flywheel Weight 310FW1311

    TMV

    $181.95
    TMV Flywheel Weight 310FW1311Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220088
    SKU:
    09220088
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    FEATURES:
    FLYWHEEL WEIGHT - 11 OZ.
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    MATERIAL:
    303 STAINLESS STEEL
    $181.95
    Qty in Cart: 0
    Quantity:
    Price:
    $181.95
    Subtotal:
  • TMV Flywheel Weight 310FW1313

    TMV Flywheel Weight 310FW1313

    TMV

    $181.95
    TMV Flywheel Weight 310FW1313Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220089
    SKU:
    09220089
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    MATERIAL:
    303 STAINLESS STEEL
    FEATURES:
    FLYWHEEL WEIGHT - 13 OZ.
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $181.95
    Qty in Cart: 0
    Quantity:
    Price:
    $181.95
    Subtotal:
  • TMV Flywheel Weight 310FW5109

    TMV Flywheel Weight 310FW5109

    TMV

    $152.95
    TMV Flywheel Weight 310FW5109Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220090
    SKU:
    09220090
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    MATERIAL:
    303 STAINLESS STEEL
    UNITS:
    EACH
    FEATURES:
    FLYWHEEL WEIGHT - 9 OZ.
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • TMV Flywheel Weight 310FW5111

    TMV Flywheel Weight 310FW5111

    TMV

    $152.95
    TMV Flywheel Weight 310FW5111Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220091
    SKU:
    09220091
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    FEATURES:
    FLYWHEEL WEIGHT - 11 OZ.
    MATERIAL:
    303 STAINLESS STEEL
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    $152.95
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • TMV Flywheel Weight 310FW5113

    TMV Flywheel Weight 310FW5113

    TMV

    $152.95
    TMV Flywheel Weight 310FW5113Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220092
    SKU:
    09220092
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    MATERIAL:
    303 STAINLESS STEEL
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    RIDING STYLE:
    OFF-ROAD
    FEATURES:
    FLYWHEEL WEIGHT - 13 OZ.
    UNITS:
    EACH
    $152.95
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • TMV Flywheel Weight 310FW4113

    TMV Flywheel Weight 310FW4113

    TMV

    $166.95
    TMV Flywheel Weight 310FW4113Machined from 303 stainless steel that's 15% heavier than standard steel, allowing more mass in a smaller space, No extra gaskets or leaking plastic spacers
    09220098
    SKU:
    09220098
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    PRODUCT NAME:
    FLYWHEEL WEIGHT
    FEATURES:
    FLYWHEEL WEIGHT - 13 OZ.
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    303 STAINLESS STEEL
    UNITS:
    EACH
    $166.95
    Qty in Cart: 0
    Quantity:
    Price:
    $166.95
    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!