Engine

Engine

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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  • MOOSE RACING Valve Shim - 9.48 x 1.45 - 5 pack MSE5PK948145
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    MOOSE RACING Valve Shim - 9.48 x 1.45 - 5 pack MSE5PK948145

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.45 5 pack MSE5PK948145Complete 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...
    9261933
    SKU:
    9261933
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    VALVE SHIM THICKNESS METRIC:
    1.45 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    UNITS:
    5 PACK
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    Add to Cart
    $9.95
    Add to Cart Quick view
    Qty in Cart: 0
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    Price:
    $9.95
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  • MOOSE RACING Valve Shim - 9.48 x 1.50 - 5 pack MSE5PK948150
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    MOOSE RACING Valve Shim - 9.48 x 1.50 - 5 pack MSE5PK948150

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.50 5 pack MSE5PK948150Complete 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...
    9261934
    SKU:
    9261934
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    ATV
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    VALVE SHIM THICKNESS METRIC:
    1.50 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    Add to Cart
    $9.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
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  • MOOSE RACING Valve Shim - 9.48 x 1.55 - 5 pack MSE5PK948155
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    MOOSE RACING Valve Shim - 9.48 x 1.55 - 5 pack MSE5PK948155

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.55 5 pack MSE5PK948155Complete 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...
    9261935
    SKU:
    9261935
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    VALVE SHIM THICKNESS METRIC:
    1.55 MM
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    Add to Cart
    $9.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
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  • MOOSE RACING Valve Shim - 9.48 x 1.70 - 5 pack MSE5PK948170
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    MOOSE RACING Valve Shim - 9.48 x 1.70 - 5 pack MSE5PK948170

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.70 5 pack MSE5PK948170Complete 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...
    9261938
    SKU:
    9261938
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    VALVE SHIM THICKNESS METRIC:
    1.70 MM
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    Add to Cart
    $9.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
    Add to Cart
  • MOOSE RACING Valve Shim - 9.48 x 1.75 - 5 pack MSE5PK948175
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    MOOSE RACING Valve Shim - 9.48 x 1.75 - 5 pack MSE5PK948175

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.75 5 pack MSE5PK948175Complete 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...
    9261939
    SKU:
    9261939
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    VALVE SHIM THICKNESS METRIC:
    1.75 MM
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    Add to Cart
    $9.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
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  • MOOSE RACING Valve Shim - 9.48 x 1.80 - 5 pack MSE5PK948180
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    MOOSE RACING Valve Shim - 9.48 x 1.80 - 5 pack MSE5PK948180

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.80 5 pack MSE5PK948180Complete 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...
    9261940
    SKU:
    9261940
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    VALVE SHIM THICKNESS METRIC:
    1.80 MM
    Ships from Manufacture | Call to Order (231) 767-5055
    $9.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $9.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • MOOSE RACING Valve Shim - 9.48 x 1.90 - 5 pack MSE5PK948190
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    MOOSE RACING Valve Shim - 9.48 x 1.90 - 5 pack MSE5PK948190

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 9.48 x 1.90 5 pack MSE5PK948190Complete 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...
    9261942
    SKU:
    9261942
    Availability:
    Ships Same Business Day
    Weight:
    0.01 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
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    OUTSIDE DIAMETER METRIC:
    9.48 MM
    RIDING STYLE:
    OFF-ROAD
    VALVE SHIM THICKNESS METRIC:
    1.90 MM
    Add to Cart
    $9.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
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  • MOOSE RACING Crank Bearing - Husqvarna 24-1107
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    MOOSE RACING Crank Bearing - Husqvarna 24-1107

    MOOSE RACING

    $73.95
    MOOSE RACING Crank Bearing Husqvarna 24-1107Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines
    9240228
    SKU:
    9240228
    Availability:
    Ships Same Business Day
    Weight:
    1.12 LBS
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    APPLICATION:
    CRANKSHAFT
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    BALL
    Add to Cart
    $73.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $73.95
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  • MOOSE RACING Crank Bearing - Husqvarna 24-1108
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    MOOSE RACING Crank Bearing - Husqvarna 24-1108

    MOOSE RACING

    $75.95
    MOOSE RACING Crank Bearing Husqvarna 24-1108Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines
    9240229
    SKU:
    9240229
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    APPLICATION:
    CRANKSHAFT
    PRODUCT NAME:
    BEARING
    TYPE:
    BALL
    RIDING STYLE:
    STREET
    Add to Cart
    $75.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $75.95
    Subtotal:
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  • MOOSE RACING Crank Bearing - PW50 24-1061
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    MOOSE RACING Crank Bearing - PW50 24-1061

    MOOSE RACING

    $40.95
    MOOSE RACING Crank Bearing PW50 24-1061Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines
    9240237
    SKU:
    9240237
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    APPLICATION:
    CRANKSHAFT
    PRODUCT NAME:
    BEARING
    TYPE:
    BALL
    Add to Cart
    $40.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $40.95
    Subtotal:
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  • MOOSE RACING Crank Bearing - Gas Gas 24-1115
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    MOOSE RACING Crank Bearing - Gas Gas 24-1115

    MOOSE RACING

    $157.95
    MOOSE RACING Crank Bearing Gas Gas 24-1115Precision crank bearings, Kits contain right and left crankshaft bearings, Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines
    9240290
    SKU:
    9240290
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    APPLICATION:
    CRANKSHAFT
    PRODUCT NAME:
    BEARING
    TYPE:
    BALL
    RIDING STYLE:
    STREET
    Add to Cart
    $157.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $157.95
    Subtotal:
    Add to Cart
  • MOOSE RACING Water Pump Rebuild Kit 821302
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    MOOSE RACING Water Pump Rebuild Kit 821302

    MOOSE RACING

    $57.94
    MOOSE RACING Water Pump Rebuild Kit 821302Include 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...
    9345192
    SKU:
    9345192
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    Add to Cart
    $57.94
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $57.94
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821312
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    MOOSE RACING Water Pump Rebuild Kit 821312

    MOOSE RACING

    $52.26
    MOOSE RACING Water Pump Rebuild Kit 821312Include 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...
    9345194
    SKU:
    9345194
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    Add to Cart
    $52.26
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $52.26
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821318
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    MOOSE RACING Water Pump Rebuild Kit 821318

    MOOSE RACING

    $32.34
    MOOSE RACING Water Pump Rebuild Kit 821318Include 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...
    9345196
    SKU:
    9345196
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    WATER PUMP
    Add to Cart
    $32.34
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $32.34
    Subtotal:
    Add to Cart
  • MOOSE RACING Water Pump Rebuild Kit 821319
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    MOOSE RACING Water Pump Rebuild Kit 821319

    MOOSE RACING

    $43.18
    MOOSE RACING Water Pump Rebuild Kit 821319Include 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...
    9345197
    SKU:
    9345197
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Add to Cart
    $43.18
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $43.18
    Subtotal:
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    VESRAH Complete Gasket Kit - YZ 85 VG-2149

    VESRAH

    $44.35
    VESRAH Complete Gasket Kit YZ 85 VG-2149Complete gasket sets include all necessary engine gaskets, o-rings and valve guide oil seals to rebuild a complete engine (do not include oil seals); sold each, Top-end gasket sets include all necessary top-end...
    9340963
    SKU:
    9340963
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    SET
    Add to Cart
    $44.35
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $44.35
    Subtotal:
    Add to Cart
  • VESRAH Complete Gasket Kit - CR 125 VG-1020
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    VESRAH Complete Gasket Kit - CR 125 VG-1020

    VESRAH

    $47.95
    Complete gasket sets include all necessary engine gaskets, o-rings and valve guide oil seals to rebuild a complete engine (do not include oil seals); sold each, Top-end gasket sets include all necessary top-end gaskets, o-rings and valve guide oil seals...
    VG1020
    SKU:
    VG1020
    Weight:
    0.25 LBS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    TYPE:
    COMPLETE
    UNITS:
    SET
    Ships from Manufacture | Call to Order (231) 767-5055
    $47.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $47.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • WSM Piston Rings 010-920-05
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    WSM Piston Rings 010-920-05

    WSM

    $36.08
    WSM Piston Rings 010-920-05Order one per cylinder
    1092005
    SKU:
    1092005
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    UNITS:
    SET
    BORE - OVERSIZE:
    +0,50 MM
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON RING
    RIDING STYLE:
    WATERCRAFT
    Add to Cart
    $36.08
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $36.08
    Subtotal:
    Add to Cart
  • WSM Piston Rings 010-925
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    WSM Piston Rings 010-925

    WSM

    $27.64
    WSM Piston Rings 010-925Order one per cylinder
    10925
    SKU:
    10925
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON RING
    RIDING STYLE:
    WATERCRAFT
    PISTON MATERIAL:
    ALUMINUM
    UNITS:
    SET
    Add to Cart
    $27.64
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $27.64
    Subtotal:
    Add to Cart
  • WSM Piston Rings 010-925-04
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    WSM Piston Rings 010-925-04

    WSM

    $27.64
    WSM Piston Rings 010-925-04Order one per cylinder
    1092504
    SKU:
    1092504
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    PISTON MATERIAL:
    ALUMINUM
    BORE - OVERSIZE METRIC:
    +0.25 MM
    RIDING STYLE:
    WATERCRAFT
    PRODUCT NAME:
    PISTON RING
    BORE - OVERSIZE:
    +0,25 MM
    UNITS:
    SET
    Ships from Manufacture | Call to Order (231) 767-5055
    $27.64
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $27.64
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
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Maxima Racing Oils for sale

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!

Some parts are not legal for use in California or other states with similar laws / regulations