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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
  • WSM Crank Case Block Off Plate 011-216

    WSM Crank Case Block Off Plate 011-216

    WSM

    $13.66
    WSM Crank Case Block Off Plate 011-216Top-quality billet aluminum construction, Washers not included
    011216
    SKU:
    011216
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    KIT
    MATERIAL:
    BILLET ALUMINUM
    PRODUCT NAME:
    ELIMINATION KIT
    TYPE:
    OIL INJECTION
    Qty in Cart: 0
    Quantity:
    Price:
    $13.66
    Subtotal:
  • MOOSE RACING Crankcase Bearing and Seal Kit 24-1029

    MOOSE RACING Crankcase Bearing and Seal Kit 24-1029

    MOOSE RACING

    $91.95
    MOOSE RACING Crankcase Bearing and Seal Kit 24-1029Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines,...
    A241029
    SKU:
    A241029
    Availability:
    Ships Same Business Day
    Weight:
    1.40 LBS
    PRODUCT NAME:
    BEARING KIT
    UNITS:
    KIT
    TYPE:
    CRANK
    RIDING STYLE:
    OFF-ROAD
    $91.95
    Qty in Cart: 0
    Quantity:
    Price:
    $91.95
    Subtotal:
  • MOOSE RACING Crankcase Bearing and Seal Kit 24-1030

    MOOSE RACING Crankcase Bearing and Seal Kit 24-1030

    MOOSE RACING

    $83.95
    MOOSE RACING Crankcase Bearing and Seal Kit 24-1030Precision crank bearings, Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines,...
    A241030
    SKU:
    A241030
    Availability:
    Ships Same Business Day
    Weight:
    1.48 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CRANK
    UNITS:
    KIT
    PRODUCT NAME:
    BEARING KIT
    $83.95
    Qty in Cart: 0
    Quantity:
    Price:
    $83.95
    Subtotal:
  • MOOSE RACING Crank Bearing - XR/TRX 24-1031

    MOOSE RACING Crank Bearing - XR/TRX 24-1031

    MOOSE RACING

    $37.95
    MOOSE RACING Crank Bearing XR/TRX 24-1031Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines
    A241031
    SKU:
    A241031
    Availability:
    Ships Same Business Day
    Weight:
    0.68 LBS
    RIDING STYLE:
    ATV
    APPLICATION:
    CRANKSHAFT
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    BEARING
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    TYPE:
    BALL
    Qty in Cart: 0
    Quantity:
    Price:
    $37.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 1.96 - 5 pack MSE5PK890196

    MOOSE RACING Valve Shim - 8.90 x 1.96 - 5 pack MSE5PK890196

    MOOSE RACING

    $10.95
    MOOSE RACING Valve Shim 8.90 x 1.96 5 pack MSE5PK890196Complete 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...
    09261911
    SKU:
    09261911
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    5 PACK
    VALVE SHIM THICKNESS METRIC:
    1.96 MM
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.00 - 5 pack MSE5PK890200

    MOOSE RACING Valve Shim - 8.90 x 2.00 - 5 pack MSE5PK890200

    MOOSE RACING

    $10.95
    MOOSE RACING Valve Shim 8.90 x 2.00 5 pack MSE5PK890200Complete 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...
    09261912
    SKU:
    09261912
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    VALVE SHIM THICKNESS METRIC:
    2.00 MM
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.04 - 5 pack MSE5PK890204

    MOOSE RACING Valve Shim - 8.90 x 2.04 - 5 pack MSE5PK890204

    MOOSE RACING

    $10.95
    MOOSE RACING Valve Shim 8.90 x 2.04 5 pack MSE5PK890204Complete 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...
    09261913
    SKU:
    09261913
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    VALVE SHIM THICKNESS METRIC:
    2.04 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.12 - 5 pack MSE5PK890212

    MOOSE RACING Valve Shim - 8.90 x 2.12 - 5 pack MSE5PK890212

    MOOSE RACING

    $10.95
    MOOSE RACING Valve Shim 8.90 x 2.12 5 pack MSE5PK890212Complete 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...
    09261915
    SKU:
    09261915
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    RIDING STYLE:
    SNOW
    VALVE SHIM THICKNESS METRIC:
    2.12 MM
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    UNITS:
    5 PACK
    $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • MOOSE RACING Valve Shim - 8.90 x 2.20 - 5 pack MSE5PK890220

    MOOSE RACING Valve Shim - 8.90 x 2.20 - 5 pack MSE5PK890220

    MOOSE RACING

    $10.95
    MOOSE RACING Valve Shim 8.90 x 2.20 5 pack MSE5PK890220Complete 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...
    09261917
    SKU:
    09261917
    Availability:
    Ships Same Business Day
    Weight:
    0.02 LBS
    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
    VALVE SHIM THICKNESS METRIC:
    2.20 MM
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    8.90 MM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    $10.95
    Qty in Cart: 0
    Quantity:
    Price:
    $10.95
    Subtotal:
  • MOOSE RACING Valve Shim - 9.48 x 1.20 - 5 pack MSE5PK948120

    MOOSE RACING Valve Shim - 9.48 x 1.20 - 5 pack MSE5PK948120

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.20 5 pack MSE5PK948120Complete 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...
    09261928
    SKU:
    09261928
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    VALVE SHIM THICKNESS METRIC:
    1.20 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    5 PACK
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 9.48 x 1.25 - 5 pack MSE5PK948125

    MOOSE RACING Valve Shim - 9.48 x 1.25 - 5 pack MSE5PK948125

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.25 5 pack MSE5PK948125Complete 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...
    09261929
    SKU:
    09261929
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    VALVE SHIM THICKNESS METRIC:
    1.25 MM
    MATERIAL:
    ROLLED
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    UNITS:
    5 PACK
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 9.48 x 1.30 - 5 pack MSE5PK948130

    MOOSE RACING Valve Shim - 9.48 x 1.30 - 5 pack MSE5PK948130

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.30 5 pack MSE5PK948130Complete 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...
    09261930
    SKU:
    09261930
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    VALVE SHIM THICKNESS METRIC:
    1.30 MM
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 9.48 x 1.35 - 5 pack MSE5PK948135

    MOOSE RACING Valve Shim - 9.48 x 1.35 - 5 pack MSE5PK948135

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.35 5 pack MSE5PK948135Complete 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...
    09261931
    SKU:
    09261931
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    VALVE SHIM THICKNESS METRIC:
    1.35 MM
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Valve Shim - 9.48 x 1.40 - 5 pack MSE5PK948140

    MOOSE RACING Valve Shim - 9.48 x 1.40 - 5 pack MSE5PK948140

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.40 5 pack MSE5PK948140Complete 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...
    09261932
    SKU:
    09261932
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    MATERIAL:
    ROLLED
    RIDING STYLE:
    ATV
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    VALVE SHIM THICKNESS METRIC:
    1.40 MM
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • MOOSE RACING Inner Clutch Cover Gasket 816274

    MOOSE RACING Inner Clutch Cover Gasket 816274

    MOOSE RACING

    $17.96
    MOOSE RACING Inner Clutch Cover Gasket 816274Moose 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...
    09346137
    SKU:
    09346137
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    TYPE:
    CLUTCH COVER
    $17.96
    Qty in Cart: 0
    Quantity:
    Price:
    $17.96
    Subtotal:
  • MOOSE RACING Inner Clutch Cover Gasket 816281

    MOOSE RACING Inner Clutch Cover Gasket 816281

    MOOSE RACING

    $16.58
    MOOSE RACING Inner Clutch Cover Gasket 816281Moose 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...
    09346138
    SKU:
    09346138
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    $16.58
    Qty in Cart: 0
    Quantity:
    Price:
    $16.58
    Subtotal:
  • MOOSE RACING Inner Clutch Cover Gasket 816282

    MOOSE RACING Inner Clutch Cover Gasket 816282

    MOOSE RACING

    $15.37
    MOOSE RACING Inner Clutch Cover Gasket 816282Moose 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...
    09346139
    SKU:
    09346139
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    Qty in Cart: 0
    Quantity:
    Price:
    $15.37
    Subtotal:
  • MOOSE RACING Inner Clutch Cover Gasket 816285

    MOOSE RACING Inner Clutch Cover Gasket 816285

    MOOSE RACING

    $15.37
    MOOSE RACING Inner Clutch Cover Gasket 816285Moose 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...
    09346140
    SKU:
    09346140
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    Qty in Cart: 0
    Quantity:
    Price:
    $15.37
    Subtotal:
  • MOOSE RACING Outer Clutch Cover Gasket 816286

    MOOSE RACING Outer Clutch Cover Gasket 816286

    MOOSE RACING

    $13.81
    MOOSE RACING Outer Clutch Cover Gasket 816286Moose 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...
    09346141
    SKU:
    09346141
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $13.81
    Subtotal:
  • MOOSE RACING Valve Shim - 7.48 x 1.65 - 5 pack MSE5PK748165

    MOOSE RACING Valve Shim - 7.48 x 1.65 - 5 pack MSE5PK748165

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 7.48 x 1.65 5 pack MSE5PK748165Complete 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...
    09261867
    SKU:
    09261867
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    OUTSIDE DIAMETER METRIC:
    7.48 MM
    RIDING STYLE:
    ATV
    VALVE SHIM THICKNESS METRIC:
    1.65 MM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    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!