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
  • COMETIC Stator Gasket - Honda EC394020F

    COMETIC Stator Gasket - Honda EC394020F

    COMETIC

    $8.95
    COMETIC Stator Gasket Honda EC394020FStator cover gaskets are made from an AFM Material which is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core, Save service time as AFM will not stick to the engine case making...
    09344449
    SKU:
    09344449
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STATOR COVER
    UNITS:
    EACH
    MATERIAL:
    ALUMINUM
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • COMETIC Clutch Gasket - Yamaha EC470020F

    COMETIC Clutch Gasket - Yamaha EC470020F

    COMETIC

    $9.95
    COMETIC Clutch Gasket Yamaha EC470020FClutch cover gaskets are made form an AFM Material which is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core, Aluminum core gives the gasket strength for a superior seal and prevents...
    09344462
    SKU:
    09344462
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    UNITS:
    EACH
    PRODUCT NAME:
    GASKET
    MODEL:
    HI-PERFORMANCE
    $9.95
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • COMETIC Stator Gasket - Yamaha EC471020F

    COMETIC Stator Gasket - Yamaha EC471020F

    COMETIC

    $9.95
    COMETIC Stator Gasket Yamaha EC471020FStator cover gaskets are made from an AFM Material which is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core, Save service time as AFM will not stick to the engine case making...
    09344463
    SKU:
    09344463
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    MATERIAL:
    ALUMINUM
    MODEL:
    HI-PERFORMANCE
    TYPE:
    STATOR COVER
    PRODUCT NAME:
    GASKET
    Qty in Cart: 0
    Quantity:
    Price:
    $9.95
    Subtotal:
  • COMETIC Stator Gasket - KTM EC494032AFM

    COMETIC Stator Gasket - KTM EC494032AFM

    COMETIC

    $21.95
    COMETIC Stator Gasket KTM EC494032AFMStator cover gaskets are made from an AFM Material which is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core, Save service time as AFM will not stick to the engine case making...
    09344465
    SKU:
    09344465
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STATOR COVER
    MODEL:
    HI-PERFORMANCE
    THICKNESS IMPERIAL:
    0,032'
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ATV
    THICKNESS:
    0,81 MM (0,032')
    THICKNESS METRIC:
    0.81 MM
    UNITS:
    EACH
    $21.95
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • COMETIC Clutch Gasket - KTM EC496032AFM

    COMETIC Clutch Gasket - KTM EC496032AFM

    COMETIC

    $21.95
    COMETIC Clutch Gasket KTM EC496032AFMClutch cover gaskets are made form an AFM Material which is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core, Aluminum core gives the gasket strength for a superior seal and prevents...
    09344466
    SKU:
    09344466
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    CLUTCH COVER
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    MODEL:
    HI-PERFORMANCE
    THICKNESS IMPERIAL:
    0,032'
    $21.95
    Qty in Cart: 0
    Quantity:
    Price:
    $21.95
    Subtotal:
  • On Sale
    COMETIC Stator Gasket - Honda EC510032AFM

    COMETIC Stator Gasket - Honda EC510032AFM

    COMETIC

    MSRP: $8.95
    Now: $5.00
    Was: $8.95
    COMETIC Stator Gasket Honda EC510032AFMStator cover gaskets are made from an AFM Material which is a chemically blown, compounded nitrile synthetic rubber bonded to an aluminum core, Save service time as AFM will not stick to the engine case making...
    09344467
    SKU:
    09344467
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    STATOR COVER
    UNITS:
    EACH
    MATERIAL:
    AFM (ALUMINUM FOAM MATERIAL)
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    MSRP: $8.95
    Now: $5.00
    Was: $8.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $8.95
    Now: $5.00
    Was: $8.95
    Subtotal:
  • COMETIC Exhaust Gasket EX006042AM

    COMETIC Exhaust Gasket EX006042AM

    COMETIC

    $7.95
    COMETIC Exhaust Gasket EX006042AMGasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket...
    09344513
    SKU:
    09344513
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    BORE SIZE METRIC:
    58.00 MM
    PRODUCT NAME:
    GASKET
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Exhaust Gasket EX008042AM

    COMETIC Exhaust Gasket EX008042AM

    COMETIC

    $7.95
    COMETIC Exhaust Gasket EX008042AMGasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket...
    09344515
    SKU:
    09344515
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    68.00 MM
    PRODUCT NAME:
    GASKET
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    UNITS:
    SET
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Exhaust Gasket - Yamaha EX1041042AM

    COMETIC Exhaust Gasket - Yamaha EX1041042AM

    COMETIC

    $7.95
    COMETIC Exhaust Gasket Yamaha EX1041042AMGasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel...
    09344522
    SKU:
    09344522
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    BORE SIZE IMPERIAL:
    3.819'
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    1.07 MM
    MODEL:
    HI-PERFORMANCE
    THICKNESS IMPERIAL:
    0,042'
    TYPE:
    EXHAUST
    UNITS:
    SET
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Exhaust Gasket EX361

    COMETIC Exhaust Gasket EX361

    COMETIC

    $7.95
    COMETIC Exhaust Gasket EX361Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket providing...
    09344534
    SKU:
    09344534
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    BORE SIZE METRIC:
    101.00 MM
    TYPE:
    EXHAUST
    UNITS:
    SET
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Exhaust Gasket EX456010S

    COMETIC Exhaust Gasket EX456010S

    COMETIC

    $7.95
    COMETIC Exhaust Gasket EX456010SGasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket...
    09344538
    SKU:
    09344538
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    BORE SIZE METRIC:
    68.50 MM
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    PRODUCT NAME:
    GASKET
    $7.95
    Qty in Cart: 0
    Quantity:
    Price:
    $7.95
    Subtotal:
  • COMETIC Exhaust Gasket - Yamaha EX641

    COMETIC Exhaust Gasket - Yamaha EX641

    COMETIC

    $13.95
    COMETIC Exhaust Gasket Yamaha EX641Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket...
    09344541
    SKU:
    09344541
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BORE SIZE METRIC:
    100.00 MM
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    PRODUCT NAME:
    GASKET
    $13.95
    Qty in Cart: 0
    Quantity:
    Price:
    $13.95
    Subtotal:
  • COMETIC Exhaust Gasket EX651

    COMETIC Exhaust Gasket EX651

    COMETIC

    $11.95
    COMETIC Exhaust Gasket EX651Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket providing...
    09344544
    SKU:
    09344544
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    UNITS:
    SET
    $11.95
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • COMETIC Exhaust Gasket EX657

    COMETIC Exhaust Gasket EX657

    COMETIC

    $11.95
    COMETIC Exhaust Gasket EX657Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket providing...
    09344545
    SKU:
    09344545
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    RIDING STYLE:
    ATV
    TYPE:
    EXHAUST
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    BORE SIZE METRIC:
    99.00 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    SET
    $11.95
    Qty in Cart: 0
    Quantity:
    Price:
    $11.95
    Subtotal:
  • COMETIC Exhaust Gasket - Honda EX690064AM

    COMETIC Exhaust Gasket - Honda EX690064AM

    COMETIC

    $4.95
    COMETIC Exhaust Gasket Honda EX690064AMGasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket...
    09344546
    SKU:
    09344546
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    BORE SIZE METRIC:
    39.00 MM
    RIDING STYLE:
    ATV
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    1.63 MM
    TYPE:
    EXHAUST
    UNITS:
    SET
    RIDING STYLE:
    OFF-ROAD
    THICKNESS IMPERIAL:
    0,064'
    $4.95
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • COMETIC Exhaust Gasket - Kawasaki EX693064AM

    COMETIC Exhaust Gasket - Kawasaki EX693064AM

    COMETIC

    $4.95
    COMETIC Exhaust Gasket Kawasaki EX693064AMGasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel...
    09344549
    SKU:
    09344549
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    THICKNESS IMPERIAL:
    0,064'
    PRODUCT NAME:
    GASKET
    THICKNESS METRIC:
    1.63 MM
    BORE SIZE IMPERIAL:
    3.858'
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    UNITS:
    SET
    $4.95
    Qty in Cart: 0
    Quantity:
    Price:
    $4.95
    Subtotal:
  • COMETIC Exhaust Gasket EX817

    COMETIC Exhaust Gasket EX817

    COMETIC

    $13.95
    COMETIC Exhaust Gasket EX817Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket providing...
    09344554
    SKU:
    09344554
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    TYPE:
    EXHAUST
    UNITS:
    SET
    MODEL:
    HI-PERFORMANCE
    PRODUCT NAME:
    GASKET
    BORE SIZE METRIC:
    90.00 MM
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    UTV
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    $13.95
    Qty in Cart: 0
    Quantity:
    Price:
    $13.95
    Subtotal:
  • COMETIC Exhaust Gasket - Suzuki EX877

    COMETIC Exhaust Gasket - Suzuki EX877

    COMETIC

    $8.95
    COMETIC Exhaust Gasket Suzuki EX877Gasket material and construction will vary by application to ensure longevity with leak free performance under all conditions, 4-stroke applications utilize a double-sided Viton® rubber-coated stainless steel gasket...
    09344556
    SKU:
    09344556
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    BORE SIZE METRIC:
    101.00 MM
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    GASKET
    MODEL:
    HI-PERFORMANCE
    TYPE:
    EXHAUST
    UNITS:
    SET
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • COMETIC Valve Cover Gasket - Honda VC032010S

    COMETIC Valve Cover Gasket - Honda VC032010S

    COMETIC

    $39.95
    COMETIC Valve Cover Gasket Honda VC032010SValve cover gaskets are made from application specific materials to ensure longevity and correct fitment for a leak free seal, Provides quality, high-tech sealing solutions at a cost less than the OEMs, Made from...
    09344566
    SKU:
    09344566
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    VALVE COVER
    MODEL:
    HI-PERFORMANCE
    MATERIAL:
    ALUMINUM
    PRODUCT NAME:
    GASKET
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $39.95
    Subtotal:
  • COMETIC Bottom End Gasket Set - Honda C3047BE

    COMETIC Bottom End Gasket Set - Honda C3047BE

    COMETIC

    $114.95
    COMETIC Bottom End Gasket Set Honda C3047BEBottom end gasket kits include correct oil seals, O-rings, drain plug washers and water pump cover gaskets as needed, Materials will vary depending on what is correct and engineered for specified application,...
    09344079
    SKU:
    09344079
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    PRODUCT NAME:
    GASKET KIT
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    BOTTOM END
    BORE SIZE METRIC:
    99.00 MM
    MODEL:
    HI-PERFORMANCE
    UNITS:
    KIT
    $114.95
    Qty in Cart: 0
    Quantity:
    Price:
    $114.95
    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!