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Dirt Bike Engine

Dirt Bike Engine

Dirt Bike Engine

Dirt Bike Engine Parts at JJ Motorsports

Discover a full range of dirt bike engine components for rebuilding or upgrading your performance from JJ Motorsports. 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 to keep your engine running at peak efficiency on the track or trails.

Shop trusted brands like Wiseco for forged piston kits and K&N for high-flow oil filters. Explore related categories such as Dirt Bike Air and Fuel for intake upgrades or Dirt Bike Exhaust for complete systems.

Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    Wossner Piston Kit 76.96mm Yamaha YZ250F 2016-2018 YZ250FX 2017-2019 8942DB

    Wossner Piston Kit 76.96mm Yamaha YZ250F 2016-2018 YZ250FX 2017-2019 8942DB

    WOSSNER

    MSRP: $184.00
    Now: $174.80
    Was: $184.00
    When you're pushing a 2-stroke engine to its limits, the piston is ground zero for performance and reliability. The Wossner 8942DB kit delivers the durability and precision needed to handle sustained...
    09105298
    SKU:
    09105298
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    COMPRESSION RATIO IMPERIAL:
    13.7:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    77.01 MM
    MODEL:
    PRO SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,01 MM
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    76.96 MM
    MSRP: $184.00
    Now: $174.80
    Was: $184.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $184.00
    Now: $174.80
    Was: $184.00
    Subtotal:
  • On Sale
    Wossner Piston Kit Kawasaki KX125 1999-2000 8057DA

    Wossner Piston Kit Kawasaki KX125 1999-2000 8057DA

    WOSSNER

    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    The Wossner Piston Kit 8057DA delivers the reliability and performance demanded by KX125 racers who refuse compromise. Whether you're rebuilding after a season of hard racing or upgrading your...
    09105493
    SKU:
    09105493
    Availability:
    Ships Same Business Day
    Weight:
    0.46 LBS
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    53.95 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE SIZE METRIC:
    54.00 MM
    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    Subtotal:
  • On Sale
    Wossner Piston Kit Kawasaki KX125 1999-2000 53.96mm 8057DB

    Wossner Piston Kit Kawasaki KX125 1999-2000 53.96mm 8057DB

    WOSSNER

    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    If you're running a KX125 2-stroke, piston durability directly impacts your engine's reliability and peak power output. The Wossner 8057DB replaces worn stock pistons with a premium forged unit that...
    09105494
    SKU:
    09105494
    Availability:
    Ships Same Business Day
    Weight:
    0.46 LBS
    BORE - OVERSIZE:
    +0,01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    53.96 MM
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.01 MM
    BORE SIZE METRIC:
    54.01 MM
    TYPE:
    SINGLE RING
    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    Subtotal:
  • On Sale
    Wossner Suzuki RM250 2000-2002 Piston Kit 8059DB

    Wossner Suzuki RM250 2000-2002 Piston Kit 8059DB

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    If you're running a 2-stroke RM250 between 2000-2002, piston wear is one of the most direct threats to engine performance and reliability. The Wossner 8059DB delivers the precision engineering and...
    09105496
    SKU:
    09105496
    Availability:
    Ships Same Business Day
    Weight:
    0.76 LBS
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    66.41 MM
    DISPLACEMENT:
    249 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    +0.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    66.35 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Dual Ring Piston Kit Yamaha DT200R 1989-1991 WR200 1992-1998 8070DA

    Wossner Dual Ring Piston Kit Yamaha DT200R 1989-1991 WR200 1992-1998 8070DA

    WOSSNER

    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    If you're rebuilding a Yamaha DT200R or WR200, piston quality directly impacts engine reliability and performance. The Wossner 8070DA delivers the durability and precision engineering you need to...
    09105502
    SKU:
    09105502
    Availability:
    Ships Same Business Day
    Weight:
    0.71 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    65.94 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE SIZE METRIC:
    66.00 MM
    DISPLACEMENT:
    195 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Subtotal:
  • On Sale
    Wossner Piston Kit Kawasaki KDX220R 1998-2005 8092DA

    Wossner Piston Kit Kawasaki KDX220R 1998-2005 8092DA

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    The Wossner 8092DA piston kit is engineered specifically for Kawasaki KDX220R 2-stroke engines to deliver the reliability and durability that serious riders demand. Whether you're rebuilding after a...
    09105509
    SKU:
    09105509
    Availability:
    Ships Same Business Day
    Weight:
    0.71 LBS
    BORE SIZE METRIC:
    69.00 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    DISPLACEMENT:
    216 CC
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    68.94 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner 66.35mm Piston Kit for 1997-2001 Honda CR250R 8001DB

    Wossner 66.35mm Piston Kit for 1997-2001 Honda CR250R 8001DB

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Stock pistons in your CR250R hit their limits once you push serious RPM or demand consistent power over extended sessions. The Wossner 8001DB delivers the durability and precision you need to extract...
    09104685
    SKU:
    09104685
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    66.35 MM
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    66.41 MM
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Piston Kit KTM 250SX 1996-1999 8016DA

    Wossner Piston Kit KTM 250SX 1996-1999 8016DA

    WOSSNER

    MSRP: $162.00
    Now: $153.90
    Was: $162.00
    The Wossner Piston Kit 8016DA is engineered for KTM 250SX riders who demand reliability and precision from their 2-stroke engine. When your piston wears or you're rebuilding after hard use, a quality...
    09104709
    SKU:
    09104709
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    67.44 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    67.50 MM
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    MSRP: $162.00
    Now: $153.90
    Was: $162.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $162.00
    Now: $153.90
    Was: $162.00
    Subtotal:
  • On Sale
    Wossner Piston Kit KTM EXC300 1996-2003 8017DA

    Wossner Piston Kit KTM EXC300 1996-2003 8017DA

    WOSSNER

    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    When you're running a 2-stroke at its limits, your piston is working harder than any other component in the engine. The Wossner 8017DA piston kit delivers the durability and precision you need to...
    09104710
    SKU:
    09104710
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    DISPLACEMENT:
    293 CC
    RIDING STYLE:
    STREET
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    71.93 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    72.00 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    Subtotal:
  • On Sale
    Wossner 72.01mm Piston Kit for 1996-2003 KTM 300 EXC 8017DB

    Wossner 72.01mm Piston Kit for 1996-2003 KTM 300 EXC 8017DB

    WOSSNER

    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    The Wossner 72.01mm Piston Kit is engineered for KTM 300 EXC riders who demand reliability and peak performance from their 2-stroke engine. Factory OEM pistons wear quickly under aggressive riding...
    09104711
    SKU:
    09104711
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    72.01 MM
    DISPLACEMENT:
    293 CC
    MODEL:
    STANDARD SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE - OVERSIZE METRIC:
    +0.01 MM
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    71.94 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    Subtotal:
  • On Sale
    Wossner Piston Kit 71.95mm KTM 300 EXC 1996-2003 8017DC

    Wossner Piston Kit 71.95mm KTM 300 EXC 1996-2003 8017DC

    WOSSNER

    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    When you're pushing a KTM 300 EXC to its limits, your piston needs to handle extreme combustion pressures without sacrificing reliability. The Wossner 8017DC piston kit delivers German-engineered...
    09104712
    SKU:
    09104712
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE SIZE METRIC:
    72.02 MM
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    71.95 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +0.02 MM
    DISPLACEMENT:
    293 CC
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE:
    +0,02 MM
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $192.00
    Now: $182.40
    Was: $192.00
    Subtotal:
  • On Sale
    Wossner Piston Kit 67.00mm for Suzuki RM250 1989-1995 8022DC

    Wossner Piston Kit 67.00mm for Suzuki RM250 1989-1995 8022DC

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    The RM250's performance ceiling is limited by factory piston durability—worn or stock pistons can't handle sustained high RPM loads or aggressive tuning. The Wossner 8022DC replaces that weak link...
    09104733
    SKU:
    09104733
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    66.96 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE SIZE METRIC:
    67.02 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    DISPLACEMENT:
    246 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DA

    Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DA

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    When you're pushing a YZ250 to its limits, a worn or compromised piston directly impacts combustion efficiency, throttle response, and overall engine longevity. The Wossner 8023DA is engineered to...
    09104734
    SKU:
    09104734
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    249 CC
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    68.00 MM
    PISTON SIZE METRIC:
    67.94 MM
    UNITS:
    KIT
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DB

    Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DB

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    A worn or damaged piston directly impacts your YZ250's power delivery, throttle response, and engine longevity. The Wossner 8023DB restores—or exceeds—OEM performance with precision German...
    09104735
    SKU:
    09104735
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE SIZE METRIC:
    68.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    67.95 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Piston Kit Yamaha YZ250 1992-1998 8023DC

    Wossner Piston Kit Yamaha YZ250 1992-1998 8023DC

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    If you're running a YZ250 2-stroke in competition or high-demand riding, your piston is the weak link if it's worn or stock. The Wossner 8023DC delivers the thermal stability and reduced friction...
    09104736
    SKU:
    09104736
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    67.96 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    68.02 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Piston Kit for 2006-2014 BMW 3 Series 2.5L 8026DA

    Wossner Piston Kit for 2006-2014 BMW 3 Series 2.5L 8026DA

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    If you're running a 2006-2014 BMW 3 Series 2.5L engine at or near its limits, stock pistons won't cut it. The Wossner 8026DA Piston Kit replaces weak OEM components with forged 4032 T6 aluminum...
    09104740
    SKU:
    09104740
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    DISPLACEMENT:
    249 CC
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    66.34 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    66.40 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Piston Kit Kawasaki KX250 1992-2001 8026DC

    Wossner Piston Kit Kawasaki KX250 1992-2001 8026DC

    WOSSNER

    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    If you're running a KX250 in competition or pushing hard on the track, piston reliability directly impacts your power output and engine longevity. The Wössner 8026DC delivers the durability and...
    09104742
    SKU:
    09104742
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    66.36 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    BORE SIZE METRIC:
    66.42 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    249 CC
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $152.00
    Now: $144.40
    Was: $152.00
    Subtotal:
  • On Sale
    Wossner Dual Ring Piston Kit KTM 200EXC 1998-2016 200SX 2003-2004 8048DA

    Wossner Dual Ring Piston Kit KTM 200EXC 1998-2016 200SX 2003-2004 8048DA

    WOSSNER

    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Factory pistons wear out fast in high-revving 2-stroke engines, especially in race environments where heat and friction accelerate degradation. The Wossner 8048DA replaces worn components with...
    09104755
    SKU:
    09104755
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    UNITS:
    KIT
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    63.94 MM
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    64.00 MM
    DISPLACEMENT:
    193 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Subtotal:
  • On Sale
    Wossner Piston Kit for KTM 200 EXC 1998-2016 8048DB

    Wossner Piston Kit for KTM 200 EXC 1998-2016 8048DB

    WOSSNER

    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    When you're running a 2-stroke at the edge of performance, your piston is under extreme thermal and mechanical stress. The Wossner 8048DB replaces worn or damaged pistons with a precision-engineered...
    09104756
    SKU:
    09104756
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    BORE SIZE METRIC:
    64.01 MM
    DISPLACEMENT:
    193 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    PISTON SIZE METRIC:
    63.95 MM
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    +0,01 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $142.00
    Now: $134.90
    Was: $142.00
    Subtotal:
  • On Sale
    Wossner Piston Kit KTM 125 SX 2001-2006 8056DA

    Wossner Piston Kit KTM 125 SX 2001-2006 8056DA

    WOSSNER

    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    If you're running a KTM 125 SX at the track or trail, piston wear is inevitable—and a worn piston kills both power and reliability. The Wössner 8056DA replaces worn internals with German-engineered...
    09104766
    SKU:
    09104766
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE SIZE METRIC:
    54.00 MM
    PISTON SIZE METRIC:
    53.95 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    Qty in Cart: 0
    Quantity:
    Price:
    MSRP: $122.00
    Now: $115.90
    Was: $122.00
    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!

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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