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
  • WISECO Valve Kit SVKB3338

    WISECO Valve Kit SVKB3338

    WISECO

    $344.95
    WISECO Valve Kit SVKB3338Complete package with valves and springs for intake and exhaust, Matched steel valves and springs provide an engineered solution to your engine, OEM-quality valves manufactured by leading OEM suppliers, Precision valve springs...
    9263070
    SKU:
    9263070
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    PRODUCT NAME:
    VALVE KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    APPLICATION:
    EXHAUST
    MATERIAL:
    STEEL
    APPLICATION:
    INTAKE
    $344.95
    Qty in Cart: 0
    Quantity:
    Price:
    $344.95
    Subtotal:
  • WISECO Piston - Standard - Kawasaki KX 250 617M06640

    WISECO Piston - Standard - Kawasaki KX 250 617M06640

    WISECO

    $199.95
    WISECO Piston Standard Kawasaki KX 250 617M06640Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...
    617M06640
    SKU:
    617M06640
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    DISPLACEMENT:
    249 CC
    STROKE LENGTH:
    70,00 MM
    BORE SIZE METRIC:
    66.40 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    STROKE LENGTH METRIC:
    70.00 MM
    UNITS:
    EACH
    $199.95
    Qty in Cart: 0
    Quantity:
    Price:
    $199.95
    Subtotal:
  • WISECO Top End Bearing B1022

    WISECO Top End Bearing B1022

    WISECO

    $23.99
    WISECO Top End Bearing B1022Forged from high-silicon aluminum alloy for maximum strength and dependability, High-quality bearings are manufactured to the highest standards; case-hardened for maximum life and smooth operation at high engine speeds
    B1022X
    SKU:
    B1022X
    Availability:
    Ships Same Business Day
    Weight:
    0.13 LBS
    LENGTH METRIC:
    23.5 MM
    MATERIAL:
    ALUMINUM
    OUTSIDE DIAMETER METRIC:
    22 MM
    RIDING STYLE:
    ADVENTURE TOURING / DUAL-SPORT
    RIDING STYLE:
    STREET
    TYPE:
    TOP END
    APPLICATION:
    PISTON
    INSIDE DIAMETER METRIC:
    18 MM
    MATERIAL:
    SILICONE
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    RIDING STYLE:
    WATERCRAFT
    $23.99
    Qty in Cart: 0
    Quantity:
    Price:
    $23.99
    Subtotal:
  • WORKS CONNECTION Engine Timing Plug - Blue - Yamaha 24-550

    WORKS CONNECTION Engine Timing Plug - Blue - Yamaha 24-550

    WORKS CONNECTION

    $49.95
    WORKS CONNECTION Engine Timing Plug Blue Yamaha 24-550Precision-machined from 6061 T-6 aluminum, Simple positive installation with an Allen wrench, Set of two plugs replaces the stock plugs, Polished to a mirror finish prior to anodizing, resulting in a...
    9500102
    SKU:
    9500102
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    COLOR/FINISH:
    ANODIZED
    COLOR/FINISH:
    BLUE
    PRODUCT NAME:
    PLUG
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    MATERIAL:
    6061 T-6 ALUMINUM
    TYPE:
    ENGINE
    UNITS:
    SET
    $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
  • WORKS CONNECTION Engine Timing Plug - Red 24-575

    WORKS CONNECTION Engine Timing Plug - Red 24-575

    WORKS CONNECTION

    $49.95
    WORKS CONNECTION Engine Timing Plug Red 24-575Precision-machined from 6061 T-6 aluminum, Simple positive installation with an Allen wrench, Set of two plugs replaces the stock plugs, Polished to a mirror finish prior to anodizing, resulting in a...
    9500111
    SKU:
    9500111
    Availability:
    Ships Same Business Day
    Weight:
    0.14 LBS
    COLOR/FINISH:
    ANODIZED
    COLOR/FINISH:
    RED
    PRODUCT NAME:
    PLUG
    RIDING STYLE:
    STREET
    TYPE:
    ENGINE
    UNITS:
    SET
    MATERIAL:
    6061 T-6 ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
  • WORKS CONNECTION Engine Timing Plug - Blue - Kawasaki 24-543

    WORKS CONNECTION Engine Timing Plug - Blue - Kawasaki 24-543

    WORKS CONNECTION

    $49.95
    WORKS CONNECTION Engine Timing Plug Blue Kawasaki 24-543Precision-machined from 6061 T-6 aluminum, Simple positive installation with an Allen wrench, Set of two plugs replaces the stock plugs, Polished to a mirror finish prior to anodizing, resulting in...
    9500196
    SKU:
    9500196
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    PLUG
    RIDING STYLE:
    STREET
    TYPE:
    ENGINE
    UNITS:
    SET
    COLOR/FINISH:
    ANODIZED
    COLOR/FINISH:
    BLUE
    MATERIAL:
    6061 T-6 ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
  • WORKS CONNECTION Dipstick - Red - CRF250R 24-246

    WORKS CONNECTION Dipstick - Red - CRF250R 24-246

    WORKS CONNECTION

    $49.95
    WORKS CONNECTION Dipstick Red CRF250R 24-246Machined from 6061 T-6 billet aluminum, Durable, lightweight and pre-drilled for safety wire, Pre-drilled for wire, Made in the U.S.A.
    9500319
    SKU:
    9500319
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    BASE COLOR:
    RED
    PRODUCT NAME:
    DIPSTICK
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    COLOR/FINISH:
    RED
    TYPE:
    ENGINE
    $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    $49.95
    Subtotal:
  • WOSSNER Connecting Rod - 250 EXC P2023

    WOSSNER Connecting Rod - 250 EXC P2023

    WOSSNER

    $120.95
    WOSSNER Connecting Rod 250 EXC P2023Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230410
    SKU:
    9230410
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    STYLE:
    STANDARD
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - RM250 P2025

    WOSSNER Connecting Rod - RM250 P2025

    WOSSNER

    $120.95
    WOSSNER Connecting Rod RM250 P2025Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230411
    SKU:
    9230411
    Availability:
    Ships Same Business Day
    Weight:
    1.10 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - RM250 P2027

    WOSSNER Connecting Rod - RM250 P2027

    WOSSNER

    $120.95
    WOSSNER Connecting Rod RM250 P2027Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230412
    SKU:
    9230412
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - YZ250 P2028

    WOSSNER Connecting Rod - YZ250 P2028

    WOSSNER

    $120.95
    WOSSNER Connecting Rod YZ250 P2028Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230413
    SKU:
    9230413
    Availability:
    Ships Same Business Day
    Weight:
    1.05 LBS
    UNITS:
    KIT
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - YZ250 P2029

    WOSSNER Connecting Rod - YZ250 P2029

    WOSSNER

    $120.95
    WOSSNER Connecting Rod YZ250 P2029Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230414
    SKU:
    9230414
    Availability:
    Ships Same Business Day
    Weight:
    1.15 LBS
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - LTR450 P4011

    WOSSNER Connecting Rod - LTR450 P4011

    WOSSNER

    $152.95
    WOSSNER Connecting Rod LTR450 P4011Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230437
    SKU:
    9230437
    Availability:
    Ships Same Business Day
    Weight:
    1.70 LBS
    STYLE:
    STANDARD
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    Qty in Cart: 0
    Quantity:
    Price:
    $152.95
    Subtotal:
  • WOSSNER Connecting Rod - CRF450 P4026

    WOSSNER Connecting Rod - CRF450 P4026

    WOSSNER

    $164.95
    WOSSNER Connecting Rod CRF450 P4026Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230441
    SKU:
    9230441
    Availability:
    Ships Same Business Day
    Weight:
    1.65 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    STYLE:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $164.95
    Qty in Cart: 0
    Quantity:
    Price:
    $164.95
    Subtotal:
  • WOSSNER Connecting Rod - CRF450 P4027

    WOSSNER Connecting Rod - CRF450 P4027

    WOSSNER

    $164.95
    WOSSNER Connecting Rod CRF450 P4027Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230442
    SKU:
    9230442
    Availability:
    Ships Same Business Day
    Weight:
    1.60 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    STYLE:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $164.95
    Qty in Cart: 0
    Quantity:
    Price:
    $164.95
    Subtotal:
  • WOSSNER Connecting Rod - YFM700 P4031

    WOSSNER Connecting Rod - YFM700 P4031

    WOSSNER

    $165.00
    WOSSNER Connecting Rod YFM700 P4031Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230445
    SKU:
    9230445
    Availability:
    Ships Same Business Day
    Weight:
    2.50 LBS
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    RIDING STYLE:
    UTV
    STYLE:
    STANDARD
    $165.00
    Qty in Cart: 0
    Quantity:
    Price:
    $165.00
    Subtotal:
  • WOSSNER Connecting Rod - EXC250 P4048

    WOSSNER Connecting Rod - EXC250 P4048

    WOSSNER

    $164.95
    WOSSNER Connecting Rod EXC250 P4048Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230450
    SKU:
    9230450
    Availability:
    Ships Same Business Day
    Weight:
    2.05 LBS
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    ATV
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    STYLE:
    STANDARD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $164.95
    Subtotal:
  • On Sale
    WOSSNER Connecting Rod - KX65 P2002

    WOSSNER Connecting Rod - KX65 P2002

    WOSSNER

    MSRP: $98.95
    Now: $64.32
    Was: $98.95
    WOSSNER Connecting Rod KX65 P2002Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230455
    SKU:
    9230455
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    STYLE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $98.95
    Now: $64.32
    Was: $98.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $98.95
    Now: $64.32
    Was: $98.95
    Subtotal:
  • WOSSNER Connecting Rod - RM125 P2014

    WOSSNER Connecting Rod - RM125 P2014

    WOSSNER

    $120.95
    WOSSNER Connecting Rod RM125 P2014Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230456
    SKU:
    9230456
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    STYLE:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    $120.95
    Qty in Cart: 0
    Quantity:
    Price:
    $120.95
    Subtotal:
  • WOSSNER Connecting Rod - TRX450 P4023

    WOSSNER Connecting Rod - TRX450 P4023

    WOSSNER

    $164.95
    WOSSNER Connecting Rod TRX450 P4023Connecting Rod Kit contains all parts needed for crankshaft rebuild, Designed to fit OEM bearing and crank pin, Shot peened for ultimate strength and long life, 8620 forged alloy, FEA (computer simulation) used to fine...
    9230457
    SKU:
    9230457
    Availability:
    Ships Same Business Day
    Weight:
    1.80 LBS
    STYLE:
    STANDARD
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    $164.95
    Qty in Cart: 0
    Quantity:
    Price:
    $164.95
    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!