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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
  • MOOSE RACING Motor Gasket Kit with Seal - YZ250 811669

    MOOSE RACING Motor Gasket Kit with Seal - YZ250 811669

    MOOSE RACING

    $69.20
    MOOSE RACING Motor Gasket Kit with Seal YZ250 811669Moose 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...
    M811669
    SKU:
    M811669
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    TYPE:
    ENGINE
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    COMPLETE
    UNITS:
    KIT
    $69.20
    Qty in Cart: 0
    Quantity:
    Price:
    $69.20
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - CR125 810236

    MOOSE RACING Top End Gasket Kit - CR125 810236

    MOOSE RACING

    $35.86
    MOOSE RACING Top End Gasket Kit CR125 810236Moose 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...
    M810236
    SKU:
    M810236
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $35.86
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - CR125R 810237

    MOOSE RACING Top End Gasket Kit - CR125R 810237

    MOOSE RACING

    $37.10
    MOOSE RACING Top End Gasket Kit CR125R 810237Moose 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...
    M810237
    SKU:
    M810237
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $37.10
    Qty in Cart: 0
    Quantity:
    Price:
    $37.10
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - XR200 810240

    MOOSE RACING Top End Gasket Kit - XR200 810240

    MOOSE RACING

    $45.93
    MOOSE RACING Top End Gasket Kit XR200 810240Moose 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...
    M810240
    SKU:
    M810240
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $45.93
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - XR200 810241

    MOOSE RACING Top End Gasket Kit - XR200 810241

    MOOSE RACING

    $28.76
    MOOSE RACING Top End Gasket Kit XR200 810241Moose 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...
    M810241
    SKU:
    M810241
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    TYPE:
    TOP END
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $28.76
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - CR250R 810250

    MOOSE RACING Top End Gasket Kit - CR250R 810250

    MOOSE RACING

    $20.12
    MOOSE RACING Top End Gasket Kit CR250R 810250Moose 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...
    M810250
    SKU:
    M810250
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    $20.12
    Qty in Cart: 0
    Quantity:
    Price:
    $20.12
    Subtotal:
  • MOOSE RACING Top End Gasket Kit - CR450/480R 810270

    MOOSE RACING Top End Gasket Kit - CR450/480R 810270

    MOOSE RACING

    $20.12
    MOOSE RACING Top End Gasket Kit CR450/480R 810270Moose 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...
    M810270
    SKU:
    M810270
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    GASKET
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    TOP END
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $20.12
    Subtotal:
  • KIBBLEWHITE Exhaust Valve - Suzuki 60-60718T

    KIBBLEWHITE Exhaust Valve - Suzuki 60-60718T

    KIBBLEWHITE

    $109.33
    KIBBLEWHITE Exhaust Valve Suzuki 60-60718TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262761
    SKU:
    09262761
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    TITANIUM
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    0.2150'
    TULIP ANGLE:
    20°
    MODEL:
    TENSILITE®
    UNITS:
    EACH
    HEAD DIAMETER METRIC:
    31.00 MM
    RIDING STYLE:
    OFF-ROAD
    $109.33
    Qty in Cart: 0
    Quantity:
    Price:
    $109.33
    Subtotal:
  • KIBBLEWHITE Intake Valve - Yamaha 80-80073T

    KIBBLEWHITE Intake Valve - Yamaha 80-80073T

    KIBBLEWHITE

    $92.51
    KIBBLEWHITE Intake Valve Yamaha 80-80073TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262762
    SKU:
    09262762
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    HEAD DIAMETER METRIC:
    23.00 MM
    STEM DIAMETER IMPERIAL:
    0.1570'
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    TULIP ANGLE:
    25°
    APPLICATION:
    INTAKE
    MATERIAL:
    TITANIUM
    MODEL:
    TENSILITE®
    UNITS:
    EACH
    $92.51
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • KIBBLEWHITE Center Intake Valve - Yamaha 80-80075T

    KIBBLEWHITE Center Intake Valve - Yamaha 80-80075T

    KIBBLEWHITE

    $92.51
    KIBBLEWHITE Center Intake Valve Yamaha 80-80075TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262763
    SKU:
    09262763
    Availability:
    Ships Same Business Day
    Weight:
    0.03 LBS
    HEAD DIAMETER METRIC:
    23.00 MM
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER IMPERIAL:
    0.1570'
    TULIP ANGLE:
    25°
    APPLICATION:
    CENTER INTAKE
    MATERIAL:
    TITANIUM
    MODEL:
    TENSILITE®
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • KIBBLEWHITE Exhaust Valve - Yamaha 80-80077T

    KIBBLEWHITE Exhaust Valve - Yamaha 80-80077T

    KIBBLEWHITE

    $92.51
    KIBBLEWHITE Exhaust Valve Yamaha 80-80077TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262764
    SKU:
    09262764
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    HEAD DIAMETER METRIC:
    24.50 MM
    MODEL:
    TENSILITE®
    TULIP ANGLE:
    25°
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    0.1758'
    MATERIAL:
    TITANIUM
    UNITS:
    EACH
    $92.51
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • KIBBLEWHITE Intake Valve - Yamaha 80-80213T

    KIBBLEWHITE Intake Valve - Yamaha 80-80213T

    KIBBLEWHITE

    $92.51
    KIBBLEWHITE Intake Valve Yamaha 80-80213TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262765
    SKU:
    09262765
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    INTAKE
    RIDING STYLE:
    OFF-ROAD
    TULIP ANGLE:
    15°
    UNITS:
    EACH
    MODEL:
    TENSILITE®
    STEM DIAMETER IMPERIAL:
    0.1765'
    MATERIAL:
    TITANIUM
    HEAD DIAMETER METRIC:
    27.00 MM
    PRODUCT NAME:
    VALVE
    $92.51
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • KIBBLEWHITE Center Intake Valve - Yamaha 80-80215T

    KIBBLEWHITE Center Intake Valve - Yamaha 80-80215T

    KIBBLEWHITE

    $92.51
    KIBBLEWHITE Center Intake Valve Yamaha 80-80215TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262766
    SKU:
    09262766
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD DIAMETER METRIC:
    27.00 MM
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    APPLICATION:
    CENTER INTAKE
    MODEL:
    TENSILITE®
    TULIP ANGLE:
    15°
    MATERIAL:
    TITANIUM
    STEM DIAMETER IMPERIAL:
    0.1765'
    $92.51
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • KIBBLEWHITE Exhaust Valve - Yamaha 80-80217T

    KIBBLEWHITE Exhaust Valve - Yamaha 80-80217T

    KIBBLEWHITE

    $92.51
    KIBBLEWHITE Exhaust Valve Yamaha 80-80217TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262767
    SKU:
    09262767
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    HEAD DIAMETER METRIC:
    28.00 MM
    PRODUCT NAME:
    VALVE
    TULIP ANGLE:
    20°
    UNITS:
    EACH
    MATERIAL:
    TITANIUM
    MODEL:
    TENSILITE®
    RIDING STYLE:
    OFF-ROAD
    STEM DIAMETER IMPERIAL:
    0.1957'
    APPLICATION:
    EXHAUST
    $92.51
    Qty in Cart: 0
    Quantity:
    Price:
    $92.51
    Subtotal:
  • KIBBLEWHITE Intake Valve - Yamaha 80-80762T

    KIBBLEWHITE Intake Valve - Yamaha 80-80762T

    KIBBLEWHITE

    $109.33
    KIBBLEWHITE Intake Valve Yamaha 80-80762TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262768
    SKU:
    09262768
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    HEAD DIAMETER METRIC:
    36.00 MM
    PRODUCT NAME:
    VALVE
    STEM DIAMETER IMPERIAL:
    0.2160'
    MATERIAL:
    TITANIUM
    APPLICATION:
    INTAKE
    MODEL:
    TENSILITE®
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TULIP ANGLE:
    20°
    $109.33
    Qty in Cart: 0
    Quantity:
    Price:
    $109.33
    Subtotal:
  • KIBBLEWHITE Exhaust Valve - Yamaha 80-80766T

    KIBBLEWHITE Exhaust Valve - Yamaha 80-80766T

    KIBBLEWHITE

    $109.33
    KIBBLEWHITE Exhaust Valve Yamaha 80-80766TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262769
    SKU:
    09262769
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    EXHAUST
    STEM DIAMETER IMPERIAL:
    0.2155'
    PRODUCT NAME:
    VALVE
    RIDING STYLE:
    OFF-ROAD
    TULIP ANGLE:
    20°
    HEAD DIAMETER METRIC:
    30.00 MM
    MATERIAL:
    TITANIUM
    MODEL:
    TENSILITE®
    UNITS:
    EACH
    $109.33
    Qty in Cart: 0
    Quantity:
    Price:
    $109.33
    Subtotal:
  • KIBBLEWHITE Intake Valve - Yamaha 80-80872T

    KIBBLEWHITE Intake Valve - Yamaha 80-80872T

    KIBBLEWHITE

    $109.33
    KIBBLEWHITE Intake Valve Yamaha 80-80872TTensilite® valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion...
    09262770
    SKU:
    09262770
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    APPLICATION:
    INTAKE
    HEAD DIAMETER METRIC:
    37.00 MM
    RIDING STYLE:
    OFF-ROAD
    MODEL:
    TENSILITE®
    TULIP ANGLE:
    18°
    MATERIAL:
    TITANIUM
    STEM DIAMETER IMPERIAL:
    0.2160'
    UNITS:
    EACH
    PRODUCT NAME:
    VALVE
    $109.33
    Qty in Cart: 0
    Quantity:
    Price:
    $109.33
    Subtotal:
  • KIBBLEWHITE Exhaust Valve Guide 96-96430

    KIBBLEWHITE Exhaust Valve Guide 96-96430

    KIBBLEWHITE

    $24.89
    KIBBLEWHITE Exhaust Valve Guide 96-96430All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.
    09262711
    SKU:
    09262711
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    MATERIAL:
    BRONZE
    OUTSIDE DIAMETER IMPERIAL:
    0.4352'
    RIDING STYLE:
    OFF-ROAD
    SIZE IMPERIAL:
    STANDARD
    INSIDE DIAMETER IMPERIAL:
    0.1955'
    MATERIAL:
    AMPCO-45
    PRODUCT NAME:
    VALVE GUIDE
    UNITS:
    EACH
    APPLICATION:
    EXHAUST
    MATERIAL:
    NICKEL
    MATERIAL:
    STAINLESS STEEL
    $24.89
    Qty in Cart: 0
    Quantity:
    Price:
    $24.89
    Subtotal:
  • KIBBLEWHITE Valve Guide Seal - Intake/Exhaust 71040-4

    KIBBLEWHITE Valve Guide Seal - Intake/Exhaust 71040-4

    KIBBLEWHITE

    $15.95
    KIBBLEWHITE Valve Guide Seal Intake/Exhaust 71040-4Viton intake/exhaust seals, Made in the U.S.A.
    09263100
    SKU:
    09263100
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    SEAL
    STEM DIAMETER IMPERIAL:
    0.333'
    OUTSIDE DIAMETER IMPERIAL:
    0.4550'
    RIDING STYLE:
    OFF-ROAD
    APPLICATION:
    INTAKE
    TYPE:
    VALVE GUIDE
    MATERIAL:
    VITON
    UNITS:
    4 PACK
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • KIBBLEWHITE Cylinder Head Service Kit 80-82400

    KIBBLEWHITE Cylinder Head Service Kit 80-82400

    KIBBLEWHITE

    $556.95
    KIBBLEWHITE Cylinder Head Service Kit 80-82400Kits contain all items to completely refresh and upgrade cylinder heads for popular Dirt/MX and Side x Side models, Cylinder Head Service Kits include the below components:, Lightweight Racing Valve Spring...
    09263233
    SKU:
    09263233
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    MATERIAL:
    C630 BRONZE
    MATERIAL:
    TITANIUM
    MODEL:
    BLACK DIAMOND™
    RIDING STYLE:
    STREET
    APPLICATION:
    INTAKE
    SPRING LIFT IMPERIAL:
    0.380'
    APPLICATION:
    EXHAUST
    PRODUCT NAME:
    CYLINDER HEAD SERVICE KIT
    SPRING LIFT:
    0,380'
    SPRING SEAT PRESSURE:
    39 LB
    RIDING STYLE:
    OFF-ROAD
    SPRING OPEN PRESSURE:
    86 LB
    UNITS:
    KIT
    $556.95
    Qty in Cart: 0
    Quantity:
    Price:
    $556.95
    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!