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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 Valve Seal Kit M40-41680

    MOOSE RACING Valve Seal Kit M40-41680

    MOOSE RACING

    $15.95
    Valve Seal Kit Contact surfaces designed for improved sealing, High-temperature Viton? and PTFE materials, Improved tolerance over OEM, 100% quality controlled, Kits include one full set of intake and exhaust seals, Made in the U.S.A.
    09263376
    SKU:
    09263376
    Availability:
    Ships Same Business Day
    Weight:
    0.00 LBS
    $15.95
    Qty in Cart: 0
    Quantity:
    Price:
    $15.95
    Subtotal:
  • Wossner Crankshaft Assembly for KTM SX125 2016-2022 Husqvarna TC125 2016-2022 GasGas MC125 2021-2022 CS2070

    Wossner Crankshaft Assembly for KTM SX125 2016-2022 Husqvarna TC125 2016-2022 GasGas MC125 2021-2022 CS2070

    WOSSNER

    $342.00
    Enhance your motorcycle's performance with our premium Crankshaft Assembly, designed specifically for Gas Gas, Husqvarna, and KTM models. This assembly includes a durable crankshaft and connecting rod, ensuring optimal power transfer and reliability...
    09210879
    SKU:
    09210879
    Availability:
    Ships Same Business Day
    Weight:
    6.25 LBS
    $342.00
    Qty in Cart: 0
    Quantity:
    Price:
    $342.00
    Subtotal:
  • WOSSNER Crankshaft Assembly - Husaberg | Husqvarna | KTM CS2012 WOSSNER Crankshaft Assembly - Husaberg | Husqvarna | KTM CS2012

    WOSSNER Crankshaft Assembly - Husaberg | Husqvarna | KTM CS2012

    WOSSNER

    $342.00
    Crankshaft Assembly - Husaberg | Husqvarna | KTM Includes crankshaft and connecting rod assembly and top end bearing, Standard replacement crankshaft assembly unless noted
    09210880
    SKU:
    09210880
    Availability:
    Ships Same Business Day
    Weight:
    6.95 LBS
    $342.00
    Qty in Cart: 0
    Quantity:
    Price:
    $342.00
    Subtotal:
  • Wossner Crankshaft Assembly for Honda CRF250R 2010-2017 CS4001

    Wossner Crankshaft Assembly for Honda CRF250R 2010-2017 CS4001

    WOSSNER

    $404.00
    Upgrade your Honda's performance with our high-quality Crankshaft Assembly, designed for durability and optimal engine efficiency. This assembly includes a precision-engineered crankshaft and connecting rod, along with a top-end bushing for seamless...
    09210881
    SKU:
    09210881
    Availability:
    Ships Same Business Day
    Weight:
    8.49 LBS
    $404.00
    Qty in Cart: 0
    Quantity:
    Price:
    $404.00
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  • Wossner Crankshaft Assembly Kawasaki KX85 2006-2021 KX100 2006-2021 CS2005

    Wossner Crankshaft Assembly Kawasaki KX85 2006-2021 KX100 2006-2021 CS2005

    WOSSNER

    $282.00
    Upgrade your Kawasaki engine with our high-quality Crankshaft Assembly, designed for optimal performance and durability. This assembly includes a precision-engineered crankshaft, connecting rod, and top end bearing, ensuring a seamless fit and reliable...
    09210907
    SKU:
    09210907
    Availability:
    Ships Same Business Day
    Weight:
    4.14 LBS
    $282.00
    Qty in Cart: 0
    Quantity:
    Price:
    $282.00
    Subtotal:
  • Wossner Crankshaft Assembly Yamaha YZ85 2002-2018 CS2008

    Wossner Crankshaft Assembly Yamaha YZ85 2002-2018 CS2008

    WOSSNER

    $262.00
    Upgrade your Yamaha engine with our high-quality Crankshaft Assembly, designed for optimal performance and reliability. This complete assembly includes a precision-engineered crankshaft, connecting rod, and top end bearing, ensuring a seamless fit for...
    09210908
    SKU:
    09210908
    Availability:
    Ships Same Business Day
    Weight:
    4.11 LBS
    $262.00
    Qty in Cart: 0
    Quantity:
    Price:
    $262.00
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  • Wossner Crankshaft Assembly Honda CR125R 1990-2007 CS2009 Wossner Crankshaft Assembly Honda CR125R 1990-2007 CS2009

    Wossner Crankshaft Assembly Honda CR125R 1990-2007 CS2009

    WOSSNER

    $342.00
    Upgrade your Honda's performance with our premium Crankshaft Assembly, designed for optimal efficiency and durability. This assembly includes a high-quality crankshaft and connecting rod, along with a top-end bearing for seamless operation. Perfect for...
    09210909
    SKU:
    09210909
    Availability:
    Ships Same Business Day
    Weight:
    6.06 LBS
    $342.00
    Qty in Cart: 0
    Quantity:
    Price:
    $342.00
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  • Wossner Crankshaft Assembly Yamaha YZ125 2005-2021 YZ125X 2020-2022 CS2018 Wossner Crankshaft Assembly Yamaha YZ125 2005-2021 YZ125X 2020-2022 CS2018

    Wossner Crankshaft Assembly Yamaha YZ125 2005-2021 YZ125X 2020-2022 CS2018

    WOSSNER

    $342.00
    Upgrade your Yamaha engine with our high-quality Crankshaft Assembly, designed for optimal performance and reliability. This complete assembly includes a precision-engineered crankshaft, connecting rod, and top end bearing, ensuring a seamless fit for...
    09210911
    SKU:
    09210911
    Availability:
    Ships Same Business Day
    Weight:
    6.05 LBS
    $342.00
    Qty in Cart: 0
    Quantity:
    Price:
    $342.00
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  • Wossner Crankshaft Assembly Yamaha YZ250 2003-2024 CS2028

    Wossner Crankshaft Assembly Yamaha YZ250 2003-2024 CS2028

    WOSSNER

    $424.00
    High-Performance Crankshaft Assembly - Yamaha CS2028 Transform your Yamaha engine with our premium Crankshaft Assembly, engineered for superior performance and longevity. This assembly is meticulously crafted to enhance your engine's efficiency, ensuring...
    09210912
    SKU:
    09210912
    Availability:
    Ships Same Business Day
    Weight:
    9.00 LBS
    $424.00
    Qty in Cart: 0
    Quantity:
    Price:
    $424.00
    Subtotal:
  • Wossner Crankshaft Assembly Gas Gas MC 65 2021-2022 CS2055

    Wossner Crankshaft Assembly Gas Gas MC 65 2021-2022 CS2055

    WOSSNER

    $282.00
    Premium Crankshaft Assembly for Gas Gas, Husqvarna, and KTM - CS2055 Experience unparalleled performance with our Premium Crankshaft Assembly, meticulously crafted for Gas Gas, Husqvarna, and KTM motorcycles. This assembly is engineered to enhance your...
    09210913
    SKU:
    09210913
    Availability:
    Ships Same Business Day
    Weight:
    3.97 LBS
    $282.00
    Qty in Cart: 0
    Quantity:
    Price:
    $282.00
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  • Wossner Crankshaft Assembly for KTM 85 SX 2014-2017 Husqvarna TC85 2014-2017 CS2065-1 Wossner Crankshaft Assembly for KTM 85 SX 2014-2017 Husqvarna TC85 2014-2017 CS2065-1

    Wossner Crankshaft Assembly for KTM 85 SX 2014-2017 Husqvarna TC85 2014-2017 CS2065-1

    WOSSNER

    $342.00
    Enhance the performance of your Husqvarna or KTM engine with our premium Crankshaft Assembly. This assembly includes a high-quality crankshaft, connecting rod, and top end bearing, ensuring reliable operation and longevity. Designed as a standard...
    09210914
    SKU:
    09210914
    Availability:
    Ships Same Business Day
    Weight:
    4.48 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $342.00
    Subtotal:
  • Wossner Crankshaft Assembly KTM 85 SX 2018-2025 CS2065-2

    Wossner Crankshaft Assembly KTM 85 SX 2018-2025 CS2065-2

    WOSSNER

    $342.00
    Enhance your motorcycle's performance with our premium Crankshaft Assembly, designed specifically for Gas Gas, Husqvarna, and KTM models. This assembly includes a durable crankshaft and connecting rod, ensuring optimal power transfer and reliability...
    09210915
    SKU:
    09210915
    Availability:
    Ships Same Business Day
    Weight:
    4.38 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $342.00
    Subtotal:
  • Wossner Crankshaft Assembly Yamaha YZ65 2018-2025 CS2071

    Wossner Crankshaft Assembly Yamaha YZ65 2018-2025 CS2071

    WOSSNER

    $262.00
    Premium Crankshaft Assembly - Yamaha CS2071 Enhance your Yamaha engine's performance with the Premium Crankshaft Assembly. Crafted for precision and reliability, this assembly guarantees optimal operation and longevity, making it an essential upgrade for...
    09210916
    SKU:
    09210916
    Availability:
    Ships Same Business Day
    Weight:
    3.61 LBS
    $262.00
    Qty in Cart: 0
    Quantity:
    Price:
    $262.00
    Subtotal:
  • Wossner Crankshaft Assembly Yamaha YZ85 2019-2025 CS2072

    Wossner Crankshaft Assembly Yamaha YZ85 2019-2025 CS2072

    WOSSNER

    $262.00
    Upgrade your Yamaha engine with our high-quality Crankshaft Assembly, designed for optimal performance and reliability. This complete assembly includes a precision-engineered crankshaft, connecting rod, and top end bearing, ensuring a seamless fit for...
    09210917
    SKU:
    09210917
    Availability:
    Ships Same Business Day
    Weight:
    4.06 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $262.00
    Subtotal:
  • Wossner Crankshaft Assembly Yamaha YZ250F 2003-2013 CS4005

    Wossner Crankshaft Assembly Yamaha YZ250F 2003-2013 CS4005

    WOSSNER

    $404.00
    Upgrade your Yamaha's performance with our premium Crankshaft Assembly, designed for optimal engine efficiency and durability. This assembly includes a high-quality crankshaft and connecting rod, along with a top-end bushing, ensuring a seamless fit and...
    09210919
    SKU:
    09210919
    Availability:
    Ships Same Business Day
    Weight:
    0.00 LBS
    Qty in Cart: 0
    Quantity:
    Price:
    $404.00
    Subtotal:
  • Wossner Crankshaft Assembly Yamaha YZ250F 2014-2021 CS4072

    Wossner Crankshaft Assembly Yamaha YZ250F 2014-2021 CS4072

    WOSSNER

    $404.00
    Yamaha CS4072 Crankshaft Assembly Enhance your Yamaha engine's performance with the premium CS4072 crankshaft assembly. Crafted for durability and efficiency, this assembly ensures your engine operates at its best, making it an essential choice for...
    09210921
    SKU:
    09210921
    Availability:
    Ships Same Business Day
    Weight:
    0.00 LBS
    $404.00
    Qty in Cart: 0
    Quantity:
    Price:
    $404.00
    Subtotal:
  • VINTCO Top End Piston Kit KTH01-00

    VINTCO Top End Piston Kit KTH01-00

    VINTCO

    $196.95
    Top End Piston Kit KTH01-00 Comprehensive kit for complete top-end rebuilds. Includes high-quality piston, rings, pin, and clips. Features top-end bearing for enhanced performance. Complete gasket set includes head, base, intake, and...
    09106407
    SKU:
    09106407
    Availability:
    Ships Same Business Day
    Weight:
    1.01 LBS
    $196.95
    Qty in Cart: 0
    Quantity:
    Price:
    $196.95
    Subtotal:
  • VINTCO Top End Piston Kit KTH01-0.5

    VINTCO Top End Piston Kit KTH01-0.5

    VINTCO

    $198.85
    Top End Piston Kit KTH01-0.5 Complete piston kit for optimal engine performance Includes high-quality piston, rings, pin, and clips Comes with a top end bearing for smooth operation Full gasket set includes head, base, intake, and...
    09106408
    SKU:
    09106408
    Availability:
    Ships Same Business Day
    Weight:
    1.06 LBS
    $198.85
    Qty in Cart: 0
    Quantity:
    Price:
    $198.85
    Subtotal:
  • VINTCO Top End Piston Kit KTH01-1.0

    VINTCO Top End Piston Kit KTH01-1.0

    VINTCO

    $198.85
    Top End Piston Kit KTH01-1.0 Complete piston assembly for optimal engine performance Includes high-quality piston rings for a reliable seal Features a robust pin and clips for secure installation Comes with a top-end bearing to enhance...
    09106409
    SKU:
    09106409
    Availability:
    Ships Same Business Day
    Weight:
    1.06 LBS
    $198.85
    Qty in Cart: 0
    Quantity:
    Price:
    $198.85
    Subtotal:
  • VINTCO Top End Piston Kit KTH01-1.5

    VINTCO Top End Piston Kit KTH01-1.5

    VINTCO

    $198.85
    Top End Piston Kit KTH01-1.5 Comprehensive kit for complete top-end rebuilds. Includes high-quality piston, rings, and clips for optimal performance. Features durable top-end bearing to ensure smooth operation. Complete gasket kit...
    09106410
    SKU:
    09106410
    Availability:
    Ships Same Business Day
    Weight:
    1.01 LBS
    $198.85
    Qty in Cart: 0
    Quantity:
    Price:
    $198.85
    Subtotal:
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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!