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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
  • WOSSNER Piston Kit - KTM/Husqvarna - Standard 8923DA

    WOSSNER Piston Kit - KTM/Husqvarna - Standard 8923DA

    WOSSNER

    $224.00
    WOSSNER Piston Kit KTM/Husqvarna Standard 8923DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106134
    SKU:
    09106134
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    BORE SIZE METRIC:
    78.00 MM
    COMPRESSION RATIO IMPERIAL:
    14.4:1
    PISTON SIZE METRIC:
    77.96 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    STANDARD
    MODEL:
    PREMIUM SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $224.00
    Qty in Cart: 0
    Quantity:
    Price:
    $224.00
    Subtotal:
  • WOSSNER Piston Kit - KTM/Husqvarna - Standard 8923DB

    WOSSNER Piston Kit - KTM/Husqvarna - Standard 8923DB

    WOSSNER

    $224.00
    WOSSNER Piston Kit KTM/Husqvarna Standard 8923DB2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106135
    SKU:
    09106135
    Availability:
    Ships Same Business Day
    Weight:
    0.22 LBS
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    78.01 MM
    COMPRESSION RATIO IMPERIAL:
    14.4:1
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    4-STROKE
    MODEL:
    PREMIUM SERIES
    PISTON SIZE METRIC:
    77.97 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $224.00
    Qty in Cart: 0
    Quantity:
    Price:
    $224.00
    Subtotal:
  • WOSSNER Piston Kit - KTM/Husqvarna - Standard 8941DB

    WOSSNER Piston Kit - KTM/Husqvarna - Standard 8941DB

    WOSSNER

    $214.00
    WOSSNER Piston Kit KTM/Husqvarna Standard 8941DB2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106136
    SKU:
    09106136
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    BORE SIZE METRIC:
    88.01 MM
    PISTON SIZE METRIC:
    87.96 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,01 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    RIDING STYLE:
    STREET
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    ENGINE TYPE:
    4-STROKE
    MODEL:
    PRO SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    Qty in Cart: 0
    Quantity:
    Price:
    $214.00
    Subtotal:
  • WOSSNER Piston Kit - Yamaha YZ 450 F - Standard 8949DA

    WOSSNER Piston Kit - Yamaha YZ 450 F - Standard 8949DA

    WOSSNER

    $204.00
    WOSSNER Piston Kit Yamaha YZ 450 F Standard 8949DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106137
    SKU:
    09106137
    Availability:
    Ships Same Business Day
    Weight:
    0.01 LBS
    BORE - OVERSIZE:
    STANDARD
    PISTON SIZE METRIC:
    96.96 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    97.00 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.9:1
    ENGINE TYPE:
    4-STROKE
    MODEL:
    PRO SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    $204.00
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • WOSSNER Piston Kit - Yamaha YZ 250 F - Standard 8957DA

    WOSSNER Piston Kit - Yamaha YZ 250 F - Standard 8957DA

    WOSSNER

    $184.00
    WOSSNER Piston Kit Yamaha YZ 250 F Standard 8957DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106138
    SKU:
    09106138
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    77.00 MM
    COMPRESSION RATIO IMPERIAL:
    14.0:1
    MODEL:
    PREMIUM SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    76.96 MM
    $184.00
    Qty in Cart: 0
    Quantity:
    Price:
    $184.00
    Subtotal:
  • WOSSNER Piston Kit - Yamaha YZ 250 F - Standard 8957DB

    WOSSNER Piston Kit - Yamaha YZ 250 F - Standard 8957DB

    WOSSNER

    $184.00
    WOSSNER Piston Kit Yamaha YZ 250 F Standard 8957DB2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106139
    SKU:
    09106139
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    BORE SIZE METRIC:
    77.01 MM
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    PISTON KIT
    COMPRESSION RATIO IMPERIAL:
    14.0:1
    MODEL:
    PREMIUM SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    76.97 MM
    $184.00
    Qty in Cart: 0
    Quantity:
    Price:
    $184.00
    Subtotal:
  • WOSSNER Piston Kit - Yamaha YZ 450 F - Standard 8965DA

    WOSSNER Piston Kit - Yamaha YZ 450 F - Standard 8965DA

    WOSSNER

    $224.00
    WOSSNER Piston Kit Yamaha YZ 450 F Standard 8965DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106142
    SKU:
    09106142
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    STANDARD
    MODEL:
    PREMIUM SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    97.00 MM
    COMPRESSION RATIO IMPERIAL:
    13.2:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    96.96 MM
    PRODUCT NAME:
    PISTON KIT
    $224.00
    Qty in Cart: 0
    Quantity:
    Price:
    $224.00
    Subtotal:
  • WOSSNER Piston Kit - Yamaha YZ 450 F - Standard 8562DA

    WOSSNER Piston Kit - Yamaha YZ 450 F - Standard 8562DA

    WOSSNER

    $194.00
    WOSSNER Piston Kit Yamaha YZ 450 F Standard 8562DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106148
    SKU:
    09106148
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    94.96 MM
    BORE SIZE METRIC:
    95.00 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $194.00
    Subtotal:
  • WOSSNER Piston Kit - Suzuki RMZ 450 - Standard 8606DB

    WOSSNER Piston Kit - Suzuki RMZ 450 - Standard 8606DB

    WOSSNER

    $204.00
    WOSSNER Piston Kit Suzuki RMZ 450 Standard 8606DB2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106152
    SKU:
    09106152
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    95.51 MM
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +0.01 MM
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    95.47 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $204.00
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • WOSSNER Piston Kit - Honda CRF 450 R - Standard 8768DA

    WOSSNER Piston Kit - Honda CRF 450 R - Standard 8768DA

    WOSSNER

    $214.00
    WOSSNER Piston Kit Honda CRF 450 R Standard 8768DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106153
    SKU:
    09106153
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE SIZE METRIC:
    96.00 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    13.4:1
    ENGINE TYPE:
    4-STROKE
    MODEL:
    PRO SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    95.96 MM
    BORE - OVERSIZE:
    STANDARD
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $214.00
    Qty in Cart: 0
    Quantity:
    Price:
    $214.00
    Subtotal:
  • WOSSNER Piston Kit - Honda CRF 450 R - Standard 8880DA

    WOSSNER Piston Kit - Honda CRF 450 R - Standard 8880DA

    WOSSNER

    $204.00
    WOSSNER Piston Kit Honda CRF 450 R Standard 8880DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106154
    SKU:
    09106154
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    95.96 MM
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    96.00 MM
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    ENGINE TYPE:
    4-STROKE
    PRODUCT NAME:
    PISTON KIT
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $204.00
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • On Sale
    WOSSNER Piston Kit - Honda CRF 450 F - Standard 8919DB

    WOSSNER Piston Kit - Honda CRF 450 F - Standard 8919DB

    WOSSNER

    MSRP: $198.95
    Now: $127.00
    Was: $198.95
    WOSSNER Piston Kit Honda CRF 450 F Standard 8919DB2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106156
    SKU:
    09106156
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    95.97 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    96.01 MM
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    COMPRESSION RATIO IMPERIAL:
    12.5:1
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    MSRP: $198.95
    Now: $127.00
    Was: $198.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $198.95
    Now: $127.00
    Was: $198.95
    Subtotal:
  • WOSSNER Piston Kit - Honda CRF 450 R - Standard 8936DA

    WOSSNER Piston Kit - Honda CRF 450 R - Standard 8936DA

    WOSSNER

    $204.00
    WOSSNER Piston Kit Honda CRF 450 R Standard 8936DA2 Stoke Pistons:include piston, rings, pin and clips, Piston made with high quality, permanent skirt coating to reduce friction and piston rock for quiet and improved performance, 4032 T6 Forged Aluminum...
    09106157
    SKU:
    09106157
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE SIZE METRIC:
    96.00 MM
    PRODUCT NAME:
    PISTON KIT
    COMPRESSION RATIO IMPERIAL:
    13.5:1
    MODEL:
    PREMIUM SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    95.95 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • On Sale
    WOSSNER Piston Ring Set - Honda RIK76.80

    WOSSNER Piston Ring Set - Honda RIK76.80

    WOSSNER

    MSRP: $49.95
    Now: $32.00
    Was: $49.95
    WOSSNER Piston Ring Set Honda RIK76.80Replacement ring set for Wossner pistons
    09120857
    SKU:
    09120857
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    76.80 MM
    PRODUCT NAME:
    PISTON RING SET
    UNITS:
    EACH
    MSRP: $49.95
    Now: $32.00
    Was: $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $49.95
    Now: $32.00
    Was: $49.95
    Subtotal:
  • On Sale
    WOSSNER Piston Ring Set - Yamaha/Gas Gas RIK77.00D3

    WOSSNER Piston Ring Set - Yamaha/Gas Gas RIK77.00D3

    WOSSNER

    MSRP: $49.95
    Now: $32.00
    Was: $49.95
    WOSSNER Piston Ring Set Yamaha/Gas Gas RIK77.00D3Replacement ring set for Wossner pistons
    09120858
    SKU:
    09120858
    Availability:
    Ships Same Business Day
    Weight:
    0.10 LBS
    PRODUCT NAME:
    PISTON RING SET
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    BORE SIZE METRIC:
    77.00 MM
    MSRP: $49.95
    Now: $32.00
    Was: $49.95
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $49.95
    Now: $32.00
    Was: $49.95
    Subtotal:
  • WOSSNER Piston Ring Set - KTM/Husaberg RIK95.00

    WOSSNER Piston Ring Set - KTM/Husaberg RIK95.00

    WOSSNER

    $48.50
    WOSSNER Piston Ring Set KTM/Husaberg RIK95.00Replacement ring set for Wossner pistons
    09120860
    SKU:
    09120860
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    PRODUCT NAME:
    PISTON RING SET
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    95.00 MM
    RIDING STYLE:
    STREET
    $48.50
    Qty in Cart: 0
    Quantity:
    Price:
    $48.50
    Subtotal:
  • WOSSNER Piston Ring Set - Honda/Kawasaki RIK96.00E

    WOSSNER Piston Ring Set - Honda/Kawasaki RIK96.00E

    WOSSNER

    $48.50
    WOSSNER Piston Ring Set Honda/Kawasaki RIK96.00EReplacement ring set for Wossner pistons
    09120861
    SKU:
    09120861
    Availability:
    Ships Same Business Day
    Weight:
    0.15 LBS
    PRODUCT NAME:
    PISTON RING SET
    RIDING STYLE:
    ATV
    UNITS:
    EACH
    PISTON SIZE METRIC:
    95.96 MM
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    96.00 MM
    PISTON SIZE METRIC:
    95.97 MM
    $48.50
    Qty in Cart: 0
    Quantity:
    Price:
    $48.50
    Subtotal:
  • WOSSNER Piston Ring Set - KTM/Yamaha RIK97.00

    WOSSNER Piston Ring Set - KTM/Yamaha RIK97.00

    WOSSNER

    $48.50
    WOSSNER Piston Ring Set KTM/Yamaha RIK97.00Replacement ring set for Wossner pistons
    09120862
    SKU:
    09120862
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    EACH
    BORE SIZE METRIC:
    97.00 MM
    PRODUCT NAME:
    PISTON RING SET
    $48.50
    Qty in Cart: 0
    Quantity:
    Price:
    $48.50
    Subtotal:
  • WOSSNER Piston Ring Set - KTM TPR76.00

    WOSSNER Piston Ring Set - KTM TPR76.00

    WOSSNER

    $38.50
    WOSSNER Piston Ring Set KTM TPR76.00Replacement ring set for Wossner pistons
    09120863
    SKU:
    09120863
    Availability:
    Ships Same Business Day
    Weight:
    0.20 LBS
    RIDING STYLE:
    OFF-ROAD
    PRODUCT NAME:
    PISTON RING SET
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    BORE SIZE METRIC:
    76.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $38.50
    Subtotal:
  • WSM Power Valve Rubber Boot 010-495-05

    WSM Power Valve Rubber Boot 010-495-05

    WSM

    $17.65
    WSM Power Valve Rubber Boot 010-495-05Fine tunes exhaust for peak performance
    09500473
    SKU:
    09500473
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    TYPE:
    POWER VALVE
    UNITS:
    EACH
    RIDING STYLE:
    WATERCRAFT
    PRODUCT NAME:
    BOOT
    $17.65
    Qty in Cart: 0
    Quantity:
    Price:
    $17.65
    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!