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
  • MOOSE RACING Valve Shim - 8.90 x 2.36 - 5 pack MSE5PK890236

    MOOSE RACING Valve Shim - 8.90 x 2.36 - 5 pack MSE5PK890236

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 8.90 x 2.36 5 pack MSE5PK890236Complete valve shim kits make it easier to maintain your valve train, Forged from 4140 cold rolled steel, not sintered, Laser-etched size on each shim for identification, A great addition to any...
    09261921
    SKU:
    09261921
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    TYPE:
    VALVE
    VALVE SHIM THICKNESS METRIC:
    2.36 MM
    MATERIAL:
    ROLLED
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.48 - 5 pack MSE5PK890248

    MOOSE RACING Valve Shim - 8.90 x 2.48 - 5 pack MSE5PK890248

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 8.90 x 2.48 5 pack MSE5PK890248Complete valve shim kits make it easier to maintain your valve train, Forged from 4140 cold rolled steel, not sintered, Laser-etched size on each shim for identification, A great addition to any...
    09261924
    SKU:
    09261924
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    VALVE SHIM THICKNESS METRIC:
    2.48 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    UNITS:
    5 PACK
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.52 - 5 pack MSE5PK890252

    MOOSE RACING Valve Shim - 8.90 x 2.52 - 5 pack MSE5PK890252

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 8.90 x 2.52 5 pack MSE5PK890252Complete valve shim kits make it easier to maintain your valve train, Forged from 4140 cold rolled steel, not sintered, Laser-etched size on each shim for identification, A great addition to any...
    09261925
    SKU:
    09261925
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    MATERIAL:
    ROLLED
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    VALVE SHIM THICKNESS METRIC:
    2.52 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    5 PACK
    RIDING STYLE:
    UTV
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.56 - 5 pack MSE5PK890256

    MOOSE RACING Valve Shim - 8.90 x 2.56 - 5 pack MSE5PK890256

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 8.90 x 2.56 5 pack MSE5PK890256Complete valve shim kits make it easier to maintain your valve train, Forged from 4140 cold rolled steel, not sintered, Laser-etched size on each shim for identification, A great addition to any...
    09261926
    SKU:
    09261926
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    VALVE SHIM THICKNESS METRIC:
    2.56 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821412

    MOOSE RACING Water Pump Rebuild Kit 821412

    MOOSE RACING

    $39.34
    MOOSE RACING Water Pump Rebuild Kit 821412Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345214
    SKU:
    09345214
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    OFF-ROAD
    $39.34
    Qty in Cart: 0
    Quantity:
    Price:
    $39.34
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821417

    MOOSE RACING Water Pump Rebuild Kit 821417

    MOOSE RACING

    $39.34
    MOOSE RACING Water Pump Rebuild Kit 821417Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345215
    SKU:
    09345215
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    $39.34
    Qty in Cart: 0
    Quantity:
    Price:
    $39.34
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821549

    MOOSE RACING Water Pump Rebuild Kit 821549

    MOOSE RACING

    $38.19
    MOOSE RACING Water Pump Rebuild Kit 821549Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345239
    SKU:
    09345239
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    WATER PUMP
    $38.19
    Qty in Cart: 0
    Quantity:
    Price:
    $38.19
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821550

    MOOSE RACING Water Pump Rebuild Kit 821550

    MOOSE RACING

    $38.19
    MOOSE RACING Water Pump Rebuild Kit 821550Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345240
    SKU:
    09345240
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    WATER PUMP
    $38.19
    Qty in Cart: 0
    Quantity:
    Price:
    $38.19
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821567

    MOOSE RACING Water Pump Rebuild Kit 821567

    MOOSE RACING

    $25.45
    MOOSE RACING Water Pump Rebuild Kit 821567Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345241
    SKU:
    09345241
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $25.45
    Qty in Cart: 0
    Quantity:
    Price:
    $25.45
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821587

    MOOSE RACING Water Pump Rebuild Kit 821587

    MOOSE RACING

    $32.40
    MOOSE RACING Water Pump Rebuild Kit 821587Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345246
    SKU:
    09345246
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    $32.40
    Qty in Cart: 0
    Quantity:
    Price:
    $32.40
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821590

    MOOSE RACING Water Pump Rebuild Kit 821590

    MOOSE RACING

    $35.87
    MOOSE RACING Water Pump Rebuild Kit 821590Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345247
    SKU:
    09345247
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $35.87
    Subtotal:
  • MOOSE RACING Water Pump Rebuild Kit 821593

    MOOSE RACING Water Pump Rebuild Kit 821593

    MOOSE RACING

    $33.56
    MOOSE RACING Water Pump Rebuild Kit 821593Include every gasket, O-ring, bearing and seal required to rebuild a water pump, Typical kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side...
    09345248
    SKU:
    09345248
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $33.56
    Qty in Cart: 0
    Quantity:
    Price:
    $33.56
    Subtotal:
  • MOOSE RACING Head Cover Gasket - Suzuki 817907

    MOOSE RACING Head Cover Gasket - Suzuki 817907

    MOOSE RACING

    $22.34
    MOOSE RACING Head Cover Gasket Suzuki 817907Moose 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...
    09346174
    SKU:
    09346174
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    TYPE:
    VALVE COVER
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $22.34
    Subtotal:
  • MOOSE RACING Head Cover Gasket - Kawasaki 817924

    MOOSE RACING Head Cover Gasket - Kawasaki 817924

    MOOSE RACING

    $18.11
    MOOSE RACING Head Cover Gasket Kawasaki 817924Moose 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...
    09346175
    SKU:
    09346175
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    MATERIAL:
    RUBBER
    PRODUCT NAME:
    GASKET
    TYPE:
    VALVE COVER
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $18.11
    Subtotal:
  • MOOSE RACING Outer Clutch Cover Gasket 817928

    MOOSE RACING Outer Clutch Cover Gasket 817928

    MOOSE RACING

    $6.39
    MOOSE RACING Outer Clutch Cover Gasket 817928Moose 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...
    09346176
    SKU:
    09346176
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    $6.39
    Qty in Cart: 0
    Quantity:
    Price:
    $6.39
    Subtotal:
  • MOOSE RACING Outer Clutch Cover Gasket 817930

    MOOSE RACING Outer Clutch Cover Gasket 817930

    MOOSE RACING

    $6.25
    MOOSE RACING Outer Clutch Cover Gasket 817930Moose 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...
    09346177
    SKU:
    09346177
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    $6.25
    Qty in Cart: 0
    Quantity:
    Price:
    $6.25
    Subtotal:
  • MOOSE RACING Head Cover Gasket - Honda 817932

    MOOSE RACING Head Cover Gasket - Honda 817932

    MOOSE RACING

    $15.88
    MOOSE RACING Head Cover Gasket Honda 817932Moose 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 each...
    09346179
    SKU:
    09346179
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    VALVE COVER
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    $15.88
    Qty in Cart: 0
    Quantity:
    Price:
    $15.88
    Subtotal:
  • MOOSE RACING Outer Clutch Cover Gasket 817943

    MOOSE RACING Outer Clutch Cover Gasket 817943

    MOOSE RACING

    $9.35
    MOOSE RACING Outer Clutch Cover Gasket 817943Moose 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...
    09346180
    SKU:
    09346180
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    $9.35
    Qty in Cart: 0
    Quantity:
    Price:
    $9.35
    Subtotal:
  • MOOSE RACING Head Cover Gasket - Yamaha 817944

    MOOSE RACING Head Cover Gasket - Yamaha 817944

    MOOSE RACING

    $22.93
    MOOSE RACING Head Cover Gasket Yamaha 817944Moose 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...
    09346181
    SKU:
    09346181
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    PRODUCT NAME:
    GASKET
    ENGINE TYPE:
    4-STROKE
    TYPE:
    VALVE COVER
    UNITS:
    EACH
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    $22.93
    Qty in Cart: 0
    Quantity:
    Price:
    $22.93
    Subtotal:
  • MOOSE RACING Head Cover Gasket - Suzuki 817961

    MOOSE RACING Head Cover Gasket - Suzuki 817961

    MOOSE RACING

    $24.49
    MOOSE RACING Head Cover Gasket Suzuki 817961Moose 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...
    09346182
    SKU:
    09346182
    Availability:
    Ships Same Business Day
    Weight:
    0.11 LBS
    MATERIAL:
    RUBBER
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    TYPE:
    VALVE COVER
    UNITS:
    EACH
    $24.49
    Qty in Cart: 0
    Quantity:
    Price:
    $24.49
    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!