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 Case Saver - RM125/250 03-161
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    MOOSE RACING Case Saver - RM125/250 03-161

    MOOSE RACING

    $23.95
    MOOSE RACING Case Saver RM125/250 03-161Sturdy 6061 CNC-machined aluminum pieces help to prevent engine case damage, Better looking and more sturdy than OEM plastic guards, Engraved logo, Mounting hardware included, Made in the U.S.A.
    9500025
    SKU:
    9500025
    Availability:
    Ships Same Business Day
    Weight:
    0.12 LBS
    BASE COLOR:
    SILVER
    MATERIAL:
    6061 ALUMINUM
    UNITS:
    EACH
    PRODUCT NAME:
    CASE SAVER
    TYPE:
    ENGINE
    COLOR/FINISH:
    ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    Add to Cart
    $23.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $23.95
    Subtotal:
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  • MOOSE RACING Washer/Snap Ring Counter Shaft 25-6013
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    MOOSE RACING Washer/Snap Ring Counter Shaft 25-6013

    MOOSE RACING

    $34.95
    MOOSE RACING Washer/Snap Ring Counter Shaft 25-6013Always have the countershaft lock-washers and snap rings on hand for a front sprocket replacement
    9350493
    SKU:
    9350493
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    10 PACK
    APPLICATION:
    COUNTERSHAFT
    PRODUCT NAME:
    SNAP RING
    Add to Cart
    $34.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $34.95
    Subtotal:
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  • MOOSE RACING Ignition Cover Gasket 816288
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    MOOSE RACING Ignition Cover Gasket 816288

    MOOSE RACING

    $12.56
    MOOSE RACING Ignition Cover Gasket 816288Made in the U.S.A.
    9346143
    SKU:
    9346143
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    TYPE:
    IGNITION COVER
    Add to Cart
    $12.56
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $12.56
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821364
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    MOOSE RACING Water Pump Rebuild Kit 821364

    MOOSE RACING

    $32.40
    MOOSE RACING Water Pump Rebuild Kit 821364Include 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...
    9345208
    SKU:
    9345208
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PRODUCT NAME:
    REPAIR KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    WATER PUMP
    UNITS:
    KIT
    Add to Cart
    $32.40
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $32.40
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821661
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    MOOSE RACING Water Pump Rebuild Kit 821661

    MOOSE RACING

    $50.91
    MOOSE RACING Water Pump Rebuild Kit 821661Include 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...
    9345257
    SKU:
    9345257
    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
    $50.91
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $50.91
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821665
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    MOOSE RACING Water Pump Rebuild Kit 821665

    MOOSE RACING

    $41.65
    MOOSE RACING Water Pump Rebuild Kit 821665Include 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...
    9345258
    SKU:
    9345258
    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
    $41.65
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $41.65
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821264
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    MOOSE RACING Water Pump Rebuild Kit 821264

    MOOSE RACING

    $34.08
    MOOSE RACING Water Pump Rebuild Kit 821264Include 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...
    9345186
    SKU:
    9345186
    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
    $34.08
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $34.08
    Subtotal:
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  • MOOSE RACING Water Pump Rebuild Kit 821273
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    MOOSE RACING Water Pump Rebuild Kit 821273

    MOOSE RACING

    $45.44
    MOOSE RACING Water Pump Rebuild Kit 821273Include 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...
    9345187
    SKU:
    9345187
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PRODUCT NAME:
    REPAIR KIT
    TYPE:
    WATER PUMP
    Add to Cart
    $45.44
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $45.44
    Subtotal:
    Add to Cart
  • MOOSE RACING Complete Motor Gasket Kit - CR500 808272
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    MOOSE RACING Complete Motor Gasket Kit - CR500 808272

    MOOSE RACING

    $55.95
    MOOSE RACING Complete Motor Gasket Kit CR500 808272Moose 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...
    9340137
    SKU:
    9340137
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    TYPE:
    ENGINE
    Add to Cart
    $55.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $55.95
    Subtotal:
    Add to Cart
  • MOOSE RACING Top End Gasket Kit - 250SXF 810328
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    MOOSE RACING Top End Gasket Kit - 250SXF 810328

    MOOSE RACING

    $69.29
    MOOSE RACING Top End Gasket Kit 250SXF 810328Moose 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...
    9341009
    SKU:
    9341009
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    TYPE:
    TOP END
    RIDING STYLE:
    STREET
    Add to Cart
    $69.29
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $69.29
    Subtotal:
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  • MOOSE RACING Top End Gasket Kit - 125SX 810330
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    MOOSE RACING Top End Gasket Kit - 125SX 810330

    MOOSE RACING

    $42.04
    MOOSE RACING Top End Gasket Kit 125SX 810330Moose 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...
    9341267
    SKU:
    9341267
    Availability:
    Ships Same Business Day
    Weight:
    0.09 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    PRODUCT NAME:
    GASKET
    Add to Cart
    $42.04
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $42.04
    Subtotal:
    Add to Cart
  • MOOSE RACING Crankcase Bearing and Seal Kit 24-1026
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    MOOSE RACING Crankcase Bearing and Seal Kit 24-1026

    MOOSE RACING

    $83.95
    MOOSE RACING Crankcase Bearing and Seal Kit 24-1026Precision 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,...
    A241026
    SKU:
    A241026
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    TYPE:
    CRANK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    PRODUCT NAME:
    BEARING KIT
    Add to Cart
    $83.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $83.95
    Subtotal:
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  • MOOSE RACING Inner Clutch Cover Gasket 816271
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    MOOSE RACING Inner Clutch Cover Gasket 816271

    MOOSE RACING

    $13.95
    MOOSE RACING Inner Clutch Cover Gasket 816271Moose 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...
    9346135
    SKU:
    9346135
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    Add to Cart
    $13.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $13.95
    Subtotal:
    Add to Cart
  • MOOSE RACING Inner Clutch Gasket 816300
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    MOOSE RACING Inner Clutch Gasket 816300

    MOOSE RACING

    $30.59
    MOOSE RACING Inner Clutch Gasket 816300Moose 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...
    9346148
    SKU:
    9346148
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    RIDING STYLE:
    STREET
    Add to Cart
    $30.59
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $30.59
    Subtotal:
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  • MOOSE RACING Valve Shim - 7.48 x 2.05 - 5 pack MSE5PK748205
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    MOOSE RACING Valve Shim - 7.48 x 2.05 - 5 pack MSE5PK748205

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 7.48 x 2.05 5 pack MSE5PK748205Complete 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...
    9261875
    SKU:
    9261875
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    RIDING STYLE:
    ATV
    TYPE:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    OUTSIDE DIAMETER METRIC:
    7.48 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    VALVE SHIM THICKNESS METRIC:
    2.05 MM
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    SNOW
    UNITS:
    5 PACK
    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 - 7.48 x 2.10 - 5 pack MSE5PK748210
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    MOOSE RACING Valve Shim - 7.48 x 2.10 - 5 pack MSE5PK748210

    MOOSE RACING

    $9.95
    MOOSE RACING Valve Shim 7.48 x 2.10 5 pack MSE5PK748210Complete 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...
    9261876
    SKU:
    9261876
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    PRODUCT NAME:
    SHIM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    SNOW
    RIDING STYLE:
    STREET
    UNITS:
    5 PACK
    MATERIAL:
    ROLLED
    MATERIAL:
    STEEL
    RIDING STYLE:
    UTV
    RIDING STYLE:
    WATERCRAFT
    TYPE:
    VALVE
    OUTSIDE DIAMETER METRIC:
    7.48 MM
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    VALVE SHIM THICKNESS METRIC:
    2.10 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 Inner Clutch Cover Gasket 816759
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    MOOSE RACING Inner Clutch Cover Gasket 816759

    MOOSE RACING

    $20.95
    MOOSE RACING Inner Clutch Cover Gasket 816759Moose 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...
    9346171
    SKU:
    9346171
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    Add to Cart
    $20.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
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  • MOOSE RACING Outer Clutch Cover Gasket 817976
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    MOOSE RACING Outer Clutch Cover Gasket 817976

    MOOSE RACING

    $6.43
    MOOSE RACING Outer Clutch Cover Gasket 817976Moose 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...
    9346183
    SKU:
    9346183
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    Add to Cart
    $6.43
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $6.43
    Subtotal:
    Add to Cart
  • MOOSE RACING Ignition Cover Gasket 816222
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    MOOSE RACING Ignition Cover Gasket 816222

    MOOSE RACING

    $14.95
    MOOSE RACING Ignition Cover Gasket 816222Moose 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...
    9346898
    SKU:
    9346898
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    TYPE:
    IGNITION COVER
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    Add to Cart
    $14.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $14.95
    Subtotal:
    Add to Cart
  • MOOSE RACING Valve Cover Gasket - Kawasaki 817917
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    MOOSE RACING Valve Cover Gasket - Kawasaki 817917

    MOOSE RACING

    $14.95
    MOOSE RACING Valve Cover Gasket Kawasaki 817917MOOSE RACING Valve Cover Gasket - Kawasaki
    9346899
    SKU:
    9346899
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    TYPE:
    VALVE COVER
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    Ships from Manufacture | Call to Order (231) 767-5055
    $14.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $14.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
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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!

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