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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  • VESRAH Exhaust Valve GG-4018-EX
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    VESRAH Exhaust Valve GG-4018-EX

    VESRAH

    $33.95
    VESRAH Exhaust Valve GG-4018-EXVesrah valves are precision manufactured from top-quality materials to match OEM valves
    GG4018EX
    SKU:
    GG4018EX
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    EXHAUST
    HEAD DIAMETER:
    24,70 MM
    LENGTH METRIC:
    87.16 MM
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER METRIC:
    5.50 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    24.70 MM
    RIDING STYLE:
    STREET
    Add to Cart
    $33.95
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    Qty in Cart: 0
    Quantity:
    Price:
    $33.95
    Subtotal:
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  • VESRAH Intake Valve GG-4018-IN
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    VESRAH Intake Valve GG-4018-IN

    VESRAH

    $20.95
    VESRAH Intake Valve GG-4018-INVesrah valves are precision manufactured from top-quality materials to match OEM valves
    GG4018IN
    SKU:
    GG4018IN
    Availability:
    Ships Same Business Day
    Weight:
    0.08 LBS
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    29.00 MM
    RIDING STYLE:
    OFF-ROAD
    HEAD DIAMETER:
    29,00 MM
    LENGTH METRIC:
    89.09 MM
    PRODUCT NAME:
    VALVE
    STEM DIAMETER METRIC:
    5.50 MM
    RIDING STYLE:
    STREET
    Add to Cart
    $20.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $20.95
    Subtotal:
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  • VESRAH Intake Valve GG-1023-IN
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    VESRAH Intake Valve GG-1023-IN

    VESRAH

    $21.95
    VESRAH Intake Valve GG-1023-INVesrah valves are precision manufactured from top-quality materials to match OEM valves
    9260398
    SKU:
    9260398
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    INTAKE
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE
    STEM DIAMETER METRIC:
    5.00 MM
    HEAD DIAMETER:
    23,00 MM
    HEAD DIAMETER METRIC:
    23.00 MM
    LENGTH METRIC:
    65.80 MM
    RIDING STYLE:
    OFF-ROAD
    Add to Cart
    $21.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
    Add to Cart
  • VESRAH Exhaust Valve GG-1023-EX
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    VESRAH Exhaust Valve GG-1023-EX

    VESRAH

    $28.95
    VESRAH Exhaust Valve GG-1023-EXVesrah valves are precision manufactured from top-quality materials to match OEM valves
    9260049
    SKU:
    9260049
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    EXHAUST
    HEAD DIAMETER:
    20,00 MM
    LENGTH METRIC:
    65.40 MM
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE
    STEM DIAMETER METRIC:
    5.00 MM
    HEAD DIAMETER METRIC:
    20.00 MM
    RIDING STYLE:
    OFF-ROAD
    Add to Cart
    $28.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $28.95
    Subtotal:
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    VESRAH Exhaust Gasket VE-3003

    VESRAH

    $22.95
    Exhaust pipe gaskets sold in packs of 10; suggested retail is each
    VX3003
    SKU:
    VX3003
    Weight:
    0.13 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    STREET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    EXHAUST
    UNITS:
    10 PACK
    Ships from Manufacture | Call to Order (231) 767-5055
    $22.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $22.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • VESRAH Exhaust Gasket VE-4004
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    VESRAH Exhaust Gasket VE-4004

    VESRAH

    $55.95
    Exhaust pipe gaskets sold in packs of 10; suggested retail is each
    VX4004
    SKU:
    VX4004
    Weight:
    0.13 LBS
    TYPE:
    EXHAUST
    PRODUCT NAME:
    GASKET
    UNITS:
    10 PACK
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    Add to Cart
    $55.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $55.95
    Subtotal:
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  • VESRAH Top End Gasket Kit - Yamaha 50 VG-6021
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    VESRAH Top End Gasket Kit - Yamaha 50 VG-6021

    VESRAH

    $11.95
    VESRAH Top End Gasket Kit Yamaha 50 VG-6021Complete 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...
    9342896
    SKU:
    9342896
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    SET
    PRODUCT NAME:
    GASKET
    Ships from Manufacture | Call to Order (231) 767-5055
    $11.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $11.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • VESRAH Complete Gasket Kit - XL/R 70/80 VG-1034
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    VESRAH Complete Gasket Kit - XL/R 70/80 VG-1034

    VESRAH

    $59.95
    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...
    VG1034
    SKU:
    VG1034
    Weight:
    0.31 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    SET
    Ships from Manufacture | Call to Order (231) 767-5055
    $59.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $59.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • Quick view

    VESRAH Complete Gasket Kit - DT/MX/YZ125 VG-265

    VESRAH

    $21.95
    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...
    VG265
    SKU:
    VG265
    Weight:
    0.25 LBS
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    PRODUCT NAME:
    GASKET
    Ships from Manufacture | Call to Order (231) 767-5055
    $21.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $21.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • VESRAH Top End Gasket Kit - XL/R 75/80 VG-5034
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    VESRAH Top End Gasket Kit - XL/R 75/80 VG-5034

    VESRAH

    $40.95
    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...
    VG5034
    SKU:
    VG5034
    Weight:
    0.13 LBS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    TYPE:
    TOP END
    UNITS:
    SET
    Ships from Manufacture | Call to Order (231) 767-5055
    $40.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $40.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • VESRAH Top End Gasket Kit - XL350 VG-5080-M
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    VESRAH Top End Gasket Kit - XL350 VG-5080-M

    VESRAH

    $138.95
    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...
    VG5080
    SKU:
    VG5080
    Weight:
    0.38 LBS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    TYPE:
    TOP END
    UNITS:
    SET
    Ships from Manufacture | Call to Order (231) 767-5055
    $138.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $138.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • VESRAH Top End Gasket Kit - XL/XR 600R VG-5081-M
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    VESRAH Top End Gasket Kit - XL/XR 600R VG-5081-M

    VESRAH

    $135.95
    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...
    VG5081
    SKU:
    VG5081
    Weight:
    0.38 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    SET
    PRODUCT NAME:
    GASKET
    Add to Cart
    $135.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $135.95
    Subtotal:
    Add to Cart
  • VESRAH Top End Gasket Kit - XL250S VG-585
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    VESRAH Top End Gasket Kit - XL250S VG-585

    VESRAH

    $64.95
    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...
    VG585
    SKU:
    VG585
    Weight:
    0.36 LBS
    TYPE:
    TOP END
    UNITS:
    SET
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    Add to Cart
    $64.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $64.95
    Subtotal:
    Add to Cart
  • VESRAH Top End Gasket Kit - XR500R VG-587
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    VESRAH Top End Gasket Kit - XR500R VG-587

    VESRAH

    $67.95
    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...
    VG587
    SKU:
    VG587
    Weight:
    0.25 LBS
    PRODUCT NAME:
    GASKET
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    Add to Cart
    $67.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $67.95
    Subtotal:
    Add to Cart
  • VESRAH Top End Gasket Kit - XL 200 VG-591
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    VESRAH Top End Gasket Kit - XL 200 VG-591

    VESRAH

    $31.95
    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...
    VG591
    SKU:
    VG591
    Weight:
    0.13 LBS
    UNITS:
    SET
    PRODUCT NAME:
    GASKET
    TYPE:
    TOP END
    RIDING STYLE:
    OFF-ROAD
    Ships from Manufacture | Call to Order (231) 767-5055
    $31.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    $31.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • WSM Top-End Rebuild Kit - Original Series - .50 mm 010-834-12
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    WSM Top-End Rebuild Kit - Original Series - .50 mm 010-834-12

    WSM

    $385.80
    WSM Top-End Rebuild Kit Original Series .50 mm 010-834-12Top-quality piston kits, Include pistons, rings, pins, clips, racing needle bearings, head and base gaskets, intake and exhaust gaskets
    1083412
    SKU:
    1083412
    Availability:
    Ships Same Business Day
    Weight:
    4.00 LBS
    PISTON SIZE METRIC:
    +0.50 MM
    UNITS:
    EACH
    BORE SIZE METRIC:
    71.80 MM
    MODEL:
    ORIGINAL SERIES
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    WATERCRAFT
    PRODUCT NAME:
    REBUILD KIT
    TYPE:
    TOP END
    Add to Cart
    $385.80
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $385.80
    Subtotal:
    Add to Cart
  • WSM Piston Kit - Kawasaki 900 - Standard 010-840K
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    WSM Piston Kit - Kawasaki 900 - Standard 010-840K

    WSM

    $86.96
    WSM Piston Kit Kawasaki 900 Standard 010-840KQuality and construction that meets or exceeds OEM, Feature improved E-clip design, Contain piston, rings, pin and clips, Additional rings available separately, Order one per cylinder, Skirts have a...
    10840
    SKU:
    10840
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    BORE SIZE METRIC:
    73.00 MM
    PRODUCT NAME:
    PISTON KIT
    PISTON MATERIAL:
    ALUMINUM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    ORIGINAL
    RIDING STYLE:
    WATERCRAFT
    UNITS:
    KIT
    Add to Cart
    $86.96
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $86.96
    Subtotal:
    Add to Cart
  • WSM Piston Kit - Kawasaki 900 - +.5 mm 010-840-05K
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    WSM Piston Kit - Kawasaki 900 - +.5 mm 010-840-05K

    WSM

    $86.96
    WSM Piston Kit Kawasaki 900 +.5 mm 010-840-05KQuality and construction that meets or exceeds OEM, Feature improved E-clip design, Contain piston, rings, pin and clips, Additional rings available separately, Order one per cylinder, Skirts have a...
    1084005
    SKU:
    1084005
    Availability:
    Ships Same Business Day
    Weight:
    1.00 LBS
    MODEL:
    ORIGINAL
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.50 MM
    RIDING STYLE:
    WATERCRAFT
    BORE - OVERSIZE:
    +0,50 MM
    BORE SIZE METRIC:
    73.00 MM
    PISTON MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    PISTON KIT
    Add to Cart
    $86.96
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $86.96
    Subtotal:
    Add to Cart
  • WSM Piston Rings 010-917
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    WSM Piston Rings 010-917

    WSM

    $40.75
    WSM Piston Rings 010-917Order one per cylinder
    10917
    SKU:
    10917
    Availability:
    Ships Same Business Day
    Weight:
    0.06 LBS
    BORE - OVERSIZE:
    STANDARD
    UNITS:
    SET
    PISTON MATERIAL:
    ALUMINUM
    BORE - OVERSIZE METRIC:
    STANDARD
    PRODUCT NAME:
    PISTON RING
    RIDING STYLE:
    WATERCRAFT
    Add to Cart
    $40.75
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $40.75
    Subtotal:
    Add to Cart
  • WSM Piston Rings 010-917-05
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    WSM Piston Rings 010-917-05

    WSM

    $40.75
    WSM Piston Rings 010-917-05Order one per cylinder
    1091705
    SKU:
    1091705
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    PRODUCT NAME:
    PISTON RING
    UNITS:
    SET
    PISTON MATERIAL:
    ALUMINUM
    RIDING STYLE:
    WATERCRAFT
    BORE - OVERSIZE:
    +0,50 MM
    Add to Cart
    $40.75
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    $40.75
    Subtotal:
    Add to Cart
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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