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WOSSNER

WOSSNER

WOSSNER

Wossner Pistons and Engine Components at JJ Motorsports

Wossner is a respected name in the high-performance automotive and powersports industry, renowned for its dedication to precision engineering and quality. Established several decades ago, Wossner has continuously pushed the boundaries of engine performance, becoming a trusted partner for enthusiasts and professionals. Specializing in high-performance pistons, connecting rods, and other engine components, Wossner offers products engineered for maximum efficiency and durability, particularly for snowmobiles, motorcycles, and ATVs.

At JJ Motorsports, we offer a wide selection of Wossner products to enhance your vehicle's performance. Popular items include the Wossner Piston Kit 54.45mm Yamaha YZ125 1998-2001 8091D050, designed for reduced friction and noise, the Wossner 66.37mm Piston Kit for Arctic Cat ZRT600 1996-2000 K7032DA-2 with lightweight construction for optimal efficiency, and the Wossner Piston Kit 70.87mm Arctic Cat 2004-2006 F7 Firecat K7035DA-2 for superior durability. Other favorites are the Wossner Piston Kit 69.89 mm Arctic Cat El Tigre 6000 1984-1985 K7003DA-2 for precision fit and the Wossner Piston Kit 73.28mm Arctic Cat Cougar 1993-1998 K7005DA-2 with tight piston wall clearance.

Wossner products provide significant benefits such as enhanced engine performance, improved efficiency, reduced friction and noise, and increased durability for racing and everyday use. Key features include lightweight construction, precision engineering for specific models, advanced materials, and optimal fit to maximize power output and reliability.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Wossner Piston Kit 55.00mm Honda CR125R 1992-1999 8020D100

    Wossner Piston Kit 55.00mm Honda CR125R 1992-1999 8020D100

    WOSSNER

    $142.00
    If you're running a Honda CR125R and need reliable top-end performance, a quality piston kit isn't optional—it's essential. The Wössner 8020D100 delivers the durability and efficiency demanded by...
    09104721
    SKU:
    09104721
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    PISTON SIZE METRIC:
    54.95 MM
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +1,00 MM
    BORE SIZE METRIC:
    55.00 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    DISPLACEMENT:
    125 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Honda CRF450R 2005-2008 CRF450X 2005-2017 95.97mm Piston Kit 8608DB

    Wossner Honda CRF450R 2005-2008 CRF450X 2005-2017 95.97mm Piston Kit 8608DB

    WOSSNER

    $214.00
    The Wossner 8608DB piston kit delivers the reliability and performance your Honda CRF engine demands. Whether you're running a CRF450R or CRF450X, this German-engineered piston maintains consistent...
    09104945
    SKU:
    09104945
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE:
    +0,01 MM
    PISTON SIZE METRIC:
    95.97 MM
    PRODUCT NAME:
    PISTON KIT
    MODEL:
    PREMIUM SERIES
    BORE SIZE METRIC:
    96.01 MM
    COMPRESSION RATIO IMPERIAL:
    12.0:1
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    +0.01 MM
    ENGINE TYPE:
    4-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $214.00
    Subtotal:
  • Wossner Piston Kit 94.96mm 12.3:1 Compression Yamaha YZ450F 2006-2009 8630DA

    Wossner Piston Kit 94.96mm 12.3:1 Compression Yamaha YZ450F 2006-2009 8630DA

    WOSSNER

    $204.00
    The stock piston in your YZ450F experiences extreme thermal and mechanical stress during high-RPM operation, leading to power loss and accelerated wear. The Wossner 8630DA replaces this weak link...
    09104950
    SKU:
    09104950
    Availability:
    Ships Same Business Day
    Weight:
    0.90 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    95.00 MM
    PISTON SIZE METRIC:
    94.96 MM
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    COMPRESSION RATIO IMPERIAL:
    12.3:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $204.00
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • Wossner Piston Kit 77.98mm Honda CRF250X 2004-2017 8656DC

    Wossner Piston Kit 77.98mm Honda CRF250X 2004-2017 8656DC

    WOSSNER

    $184.00
    Stock pistons wear quickly under the demands of racing and high-performance riding. The Wossner 8656DC delivers the precision engineering and durability you need to maintain peak power output and...
    09104962
    SKU:
    09104962
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    BORE - OVERSIZE:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    MODEL:
    PRO SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    13.5:1
    PISTON SIZE METRIC:
    77.98 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    78.02 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $184.00
    Subtotal:
  • Wossner Top End Bearing Yamaha YZ125 1997-2001 N1011

    Wossner Top End Bearing Yamaha YZ125 1997-2001 N1011

    WOSSNER

    $18.50
    The Wossner Top End Bearing is a critical wear item for YZ125 top-end rebuilds—worn bearings cause excessive piston slap, reduced ring seal, and accelerated bore wear. This OEM-quality replacement...
    09240451
    SKU:
    09240451
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    LENGTH METRIC:
    17.8 MM
    INSIDE DIAMETER METRIC:
    15 MM
    TYPE:
    TOP END
    UNITS:
    EACH
    APPLICATION:
    CONNECTING ROD
    OUTSIDE DIAMETER METRIC:
    20 MM
    PRODUCT NAME:
    BEARING
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $18.50
    Subtotal:
  • Wossner Piston Kit KTM 65 SX 2000-2008 8198DA

    Wossner Piston Kit KTM 65 SX 2000-2008 8198DA

    WOSSNER

    $102.00
    The KTM 65 SX demands a piston engineered to handle the demands of 2-stroke racing. Wossner's 8198DA kit delivers the durability and precision needed to maintain peak performance across seasons of...
    09105573
    SKU:
    09105573
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    45.00 MM
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    44.96 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    DISPLACEMENT:
    64 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $102.00
    Subtotal:
  • Wossner 75.98mm Piston Kit for 2006-2012 KTM 250 SX-F 8645DC

    Wossner 75.98mm Piston Kit for 2006-2012 KTM 250 SX-F 8645DC

    WOSSNER

    $204.00
    When you're pushing your KTM 250 SX-F to the limit, your piston has to handle extreme combustion pressures and sustained high RPMs without compromise. The Wossner 8645DC is engineered to deliver the...
    09104958
    SKU:
    09104958
    Availability:
    Ships Same Business Day
    Weight:
    0.60 LBS
    BORE SIZE METRIC:
    76.02 MM
    COMPRESSION RATIO IMPERIAL:
    12.9:1
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    PREMIUM SERIES
    PISTON SIZE METRIC:
    75.98 MM
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • Wossner Piston Kit 53.97mm for Husqvarna CR125 1998-2013 8089DC

    Wossner Piston Kit 53.97mm for Husqvarna CR125 1998-2013 8089DC

    WOSSNER

    $142.00
    If you're running a Husqvarna CR125 at the track or trail, piston wear is inevitable—and a failing piston compromises both reliability and power delivery. The Wossner 8089DC replaces worn internals...
    09104814
    SKU:
    09104814
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    BORE - OVERSIZE METRIC:
    +0.02 MM
    BORE SIZE METRIC:
    54.02 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    STREET
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +0,02 MM
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    53.97 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit 66.35mm Kawasaki KX250 2002-2004 8088DB

    Wossner Piston Kit 66.35mm Kawasaki KX250 2002-2004 8088DB

    WOSSNER

    $150.96
    If you're running a KX250 two-stroke, piston wear directly impacts combustion efficiency, throttle response, and engine longevity. The Wössner 8088DB replaces worn internals with German-engineered...
    09104810
    SKU:
    09104810
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    MODEL:
    STANDARD SERIES
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    66.41 MM
    DISPLACEMENT:
    249 CC
    PISTON SIZE METRIC:
    66.35 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    $150.96
    Qty in Cart: 0
    Quantity:
    Price:
    $150.96
    Subtotal:
  • Wossner Connecting Rod KTM 250 EXC 2000-2005 P2023

    Wossner Connecting Rod KTM 250 EXC 2000-2005 P2023

    WOSSNER

    $122.00
    If you're rebuilding a KTM 250 EXC engine, the connecting rod is critical—it's the link between your piston and crankshaft that handles enormous stress with every combustion cycle. The Wössner P2023...
    09230410
    SKU:
    09230410
    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
    $122.00
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Connecting Rod Suzuki RM250 2003-2010 P2025

    Wossner Connecting Rod Suzuki RM250 2003-2010 P2025

    WOSSNER

    $122.00
    A connecting rod is the critical link between your piston and crankshaft—and a weak one can cost you horsepower, reliability, and your entire rebuild investment. The Wössner P2025 for Suzuki RM250...
    09230411
    SKU:
    09230411
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Connecting Rod for Honda CRF450R 2002-2008 P4026

    Wossner Connecting Rod for Honda CRF450R 2002-2008 P4026

    WOSSNER

    $174.00
    If you're rebuilding a CRF450R engine, the connecting rod is your foundation for reliable power delivery and longevity. Wössner's 8620 forged construction and shot-peening process deliver the fatigue...
    09230441
    SKU:
    09230441
    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
    $174.00
    Qty in Cart: 0
    Quantity:
    Price:
    $174.00
    Subtotal:
  • Wossner Connecting Rod Honda CRF450R 2009-2016 P4027

    Wossner Connecting Rod Honda CRF450R 2009-2016 P4027

    WOSSNER

    $174.00
    A connecting rod is the critical link between your piston and crankshaft—when it fails, your engine fails. The Wössner P4027 is engineered from 8620 forged alloy with shot peening and FEA...
    09230442
    SKU:
    09230442
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $174.00
    Subtotal:
  • Wossner Connecting Rod for KTM 250 EXC 2001-2006 P4048

    Wossner Connecting Rod for KTM 250 EXC 2001-2006 P4048

    WOSSNER

    $174.00
    If you're rebuilding the top end of your KTM 250 EXC, the connecting rod is the critical link between piston and crankshaft—a weak point here will compromise both reliability and power delivery. The...
    09230450
    SKU:
    09230450
    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
    $174.00
    Qty in Cart: 0
    Quantity:
    Price:
    $174.00
    Subtotal:
  • Wossner Piston Kit KTM 250 SX-F 2016-2022 8923DB

    Wossner Piston Kit KTM 250 SX-F 2016-2022 8923DB

    WOSSNER

    $224.00
    Whether you're prepping for race season or rebuilding after a hard season of riding, a quality piston kit is non-negotiable for 2-stroke performance. The Wössner 8923DB delivers the durability and...
    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 Yamaha YZ450F 2018-2019 12.9:1 8949DA

    Wossner Piston Kit Yamaha YZ450F 2018-2019 12.9:1 8949DA

    WOSSNER

    $204.00
    The stock piston in your YZ450F will eventually wear, lose compression, and cost you power when it matters most. Wossner's 12.9:1 piston kit restores—and exceeds—factory performance with German...
    09106137
    SKU:
    09106137
    Availability:
    Ships Same Business Day
    Weight:
    0.90 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
    Qty in Cart: 0
    Quantity:
    Price:
    $204.00
    Subtotal:
  • Wossner Piston Ring Set KTM 250 SX-F 2006-2012 TPR76.00

    Wossner Piston Ring Set KTM 250 SX-F 2006-2012 TPR76.00

    WOSSNER

    $38.50
    Worn piston rings bleed compression, sap horsepower, and accelerate engine wear—especially critical in high-revving 2-strokes where sealing integrity directly impacts performance. The Wossner Piston...
    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:
  • Wossner Piston Kit 72.93mm Polaris Trail Boss 250 1990-2005 8094D100

    Wossner Piston Kit 72.93mm Polaris Trail Boss 250 1990-2005 8094D100

    WOSSNER

    $122.00
    If you're running a Polaris Trail Boss 250, piston wear directly impacts throttle response, compression, and fuel efficiency—and a worn piston kit forces you to rebuild sooner and spend more on...
    09105511
    SKU:
    09105511
    Availability:
    Ships Same Business Day
    Weight:
    0.81 LBS
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    73.00 MM
    ENGINE TYPE:
    2-STROKE
    UNITS:
    KIT
    DISPLACEMENT:
    244 CC
    PISTON SIZE METRIC:
    72.93 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    ATV
    BORE - OVERSIZE:
    +1,00 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    $122.00
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit Honda CR250R 1997-2001 66.34mm 8001DA

    Wossner Piston Kit Honda CR250R 1997-2001 66.34mm 8001DA

    WOSSNER

    $152.00
    If you're running a CR250R and looking to restore or exceed factory performance, a quality piston kit is non-negotiable. Wossner's 8001DA delivers the durability and precision needed for consistent...
    09104684
    SKU:
    09104684
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    66.34 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    66.40 MM
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit Honda CR250R 1997-2001 8001DC

    Wossner Piston Kit Honda CR250R 1997-2001 8001DC

    WOSSNER

    $152.00
    A worn or damaged piston directly compromises your CR250R's power delivery, throttle response, and engine longevity. The Wossner 8001DC addresses this with a complete, ready-to-install kit engineered...
    09104686
    SKU:
    09104686
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE SIZE METRIC:
    66.42 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    66.36 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit Kawasaki KDX125 1990-2005 8008DB

    Wossner Piston Kit Kawasaki KDX125 1990-2005 8008DB

    WOSSNER

    $142.00
    If you're running a KDX125 on the track or trail, piston durability and ring sealing are non-negotiable. The Wossner 8008DB replaces worn or damaged pistons with a forged aluminum unit engineered to...
    09104708
    SKU:
    09104708
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,01 MM
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    55.95 MM
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    56.01 MM
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit 54.44mm Honda NSR125R 1990–2001 8019D050

    Wossner Piston Kit 54.44mm Honda NSR125R 1990–2001 8019D050

    WOSSNER

    $144.95
    If you're running an NSR125R in competition or pushing it hard on the street, piston wear directly impacts your power delivery and engine longevity. The Wössner 8019D050 kit delivers the precision...
    09104716
    SKU:
    09104716
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    BORE - OVERSIZE METRIC:
    +0.50 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    54.50 MM
    PISTON SIZE METRIC:
    54.44 MM
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    +0,50 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $144.95
    Subtotal:
  • Wossner Piston Kit for Honda NSR125R 1991-1996 8019DB

    Wossner Piston Kit for Honda NSR125R 1991-1996 8019DB

    WOSSNER

    $142.00
    The Wossner 8019DB piston kit delivers the precision and durability demanded by serious Honda NSR125R racers and high-performance builders. Factory OEM pistons can't match the strength of 4032 T6...
    09104718
    SKU:
    09104718
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    54.01 MM
    PISTON SIZE METRIC:
    53.95 MM
    $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit 66.94mm Kawasaki KX250 1992-2001 8026D060

    Wossner Piston Kit 66.94mm Kawasaki KX250 1992-2001 8026D060

    WOSSNER

    $152.00
    Stock pistons in your 1992–2001 KX250 are engineered for reliability, not longevity under sustained racing conditions. The Wossner 8026D060 kit replaces worn or damaged pistons with German-engineered...
    09104739
    SKU:
    09104739
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    66.94 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    67.00 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.60 MM
    DISPLACEMENT:
    249 CC
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    +0,60 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Kawasaki KX250 1992-2001 Piston Kit 8026DB

    Wossner Kawasaki KX250 1992-2001 Piston Kit 8026DB

    WOSSNER

    $152.00
    If you're rebuilding your KX250's top end, you need a piston kit engineered for the demands of 2-stroke racing. The Wossner 8026DB delivers the durability and precision required to maintain peak...
    09104741
    SKU:
    09104741
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE - OVERSIZE:
    +0,01 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    66.41 MM
    DISPLACEMENT:
    249 CC
    PISTON SIZE METRIC:
    66.35 MM
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    +0.01 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit 63.96mm for 1998-2006 KTM 200 EXC 2003-2004 KTM 200 SX 8048DC

    Wossner Piston Kit 63.96mm for 1998-2006 KTM 200 EXC 2003-2004 KTM 200 SX 8048DC

    WOSSNER

    $142.00
    If you're running a KTM 200 2-stroke at the edge of its limits, piston durability and precision are non-negotiable. The Wossner 8048DC delivers the exact bore diameter your engine demands while...
    09104757
    SKU:
    09104757
    Availability:
    Ships Same Business Day
    Weight:
    0.65 LBS
    BORE SIZE METRIC:
    64.02 MM
    DISPLACEMENT:
    193 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    PISTON SIZE METRIC:
    63.96 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    RIDING STYLE:
    STREET
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit Suzuki RM125 1989-1999 8055DA

    Wossner Piston Kit Suzuki RM125 1989-1999 8055DA

    WOSSNER

    $122.00
    The Wossner 8055DA piston kit delivers the reliability and precision your RM125 demands, whether you're chasing lap times or rebuilding after hard use. Its 4032 T6 forged aluminum construction and...
    09104763
    SKU:
    09104763
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE SIZE METRIC:
    54.00 MM
    DISPLACEMENT:
    123 CC
    PISTON SIZE METRIC:
    53.95 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit 53.96mm for 1989-1999 Suzuki RM125 8055DB

    Wossner Piston Kit 53.96mm for 1989-1999 Suzuki RM125 8055DB

    WOSSNER

    $122.00
    Factory pistons on your 1989-1999 RM125 won't survive the punishment of sustained high RPM riding or race conditions. The Wossner 8055DB delivers the strength and precision engineering your 2-stroke...
    09104764
    SKU:
    09104764
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    53.96 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    54.01 MM
    DISPLACEMENT:
    123 CC
    TYPE:
    SINGLE RING
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Suzuki RM125 1989-1999 53.97mm Piston Kit 8055DC

    Wossner Suzuki RM125 1989-1999 53.97mm Piston Kit 8055DC

    WOSSNER

    $122.00
    If you're running a Suzuki RM125 two-stroke and want reliable power delivery without sacrificing durability, this Wossner piston kit is engineered to handle the demands of both racing and trail...
    09104765
    SKU:
    09104765
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    53.97 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    54.02 MM
    DISPLACEMENT:
    123 CC
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit 53.96mm for KTM 125 SX 2001-2006 8056DB

    Wossner Piston Kit 53.96mm for KTM 125 SX 2001-2006 8056DB

    WOSSNER

    $117.95
    If you're rebuilding your KTM 125 SX or pushing it to its limits, piston wear is non-negotiable—a worn piston kills compression, throttle response, and overall reliability. The Wossner 8056DB...
    09104767
    SKU:
    09104767
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE:
    +0,01 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    53.96 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    54.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    +0.01 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    $117.95
    Qty in Cart: 0
    Quantity:
    Price:
    $117.95
    Subtotal:
  • Wossner Piston Kit 53.97mm 2001-2006 KTM 125 SX 8056DC

    Wossner Piston Kit 53.97mm 2001-2006 KTM 125 SX 8056DC

    WOSSNER

    $122.00
    If you're running a 2001-2006 KTM 125 SX, a worn or damaged piston directly kills your engine's efficiency, response, and reliability. The Wossner 8056DC replaces all critical components—piston,...
    09104768
    SKU:
    09104768
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,02 MM
    BORE SIZE METRIC:
    54.02 MM
    TYPE:
    SINGLE RING
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    53.97 MM
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit for 1998-2001 Yamaha YZ125 53.95mm 8091DA

    Wossner Piston Kit for 1998-2001 Yamaha YZ125 53.95mm 8091DA

    WOSSNER

    $122.00
    When you're pushing a YZ125 to its limits, a worn or undersized piston robs you of compression, efficiency, and reliability. The Wossner 8091DA restores peak performance with a purpose-built 53.95mm...
    09104819
    SKU:
    09104819
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    53.95 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    54.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit Yamaha YZ125 1998-2001 53.97mm 8091DC

    Wossner Piston Kit Yamaha YZ125 1998-2001 53.97mm 8091DC

    WOSSNER

    $122.00
    The stock piston in your YZ125 is holding back performance—wear, heat distortion, and friction rob you of throttle response and reliability. The Wossner 8091DC replaces all of that with a...
    09104821
    SKU:
    09104821
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    53.97 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    BORE SIZE METRIC:
    54.02 MM
    BORE - OVERSIZE:
    +0,02 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit Kawasaki KX85 2001-2025 8102DB

    Wossner Piston Kit Kawasaki KX85 2001-2025 8102DB

    WOSSNER

    $112.00
    The Wossner Piston Kit 8102DB is purpose-built for KX85 riders who demand reliable performance without compromise. If you're running hard on the track or trail, a quality piston kit directly impacts...
    09104827
    SKU:
    09104827
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    48.46 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    48.51 MM
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $112.00
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Suzuki RM85 2002-2023 Piston Kit 8103DA

    Wossner Suzuki RM85 2002-2023 Piston Kit 8103DA

    WOSSNER

    $112.00
    Your RM85's performance is only as good as its bottom end. The Wossner 8103DA piston kit delivers the durability and precision needed to run consistent power across the full RPM range, whether you're...
    09104829
    SKU:
    09104829
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    84 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    48.00 MM
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    47.95 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Piston Kit Yamaha YZ125 2005-2021 8160DA

    Wossner Piston Kit Yamaha YZ125 2005-2021 8160DA

    WOSSNER

    $122.00
    For 2-stroke race engines running hard, piston durability and friction control directly impact reliability and lap times. The Wossner 8160DA delivers German-engineered precision with a complete...
    09104853
    SKU:
    09104853
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE:
    STANDARD
    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
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE SIZE METRIC:
    54.00 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit 71.96mm 2008-2011 KTM 300 XC-W 8250DC

    Wossner Piston Kit 71.96mm 2008-2011 KTM 300 XC-W 8250DC

    WOSSNER

    $192.00
    Your 2-stroke engine demands a piston that can handle sustained high RPMs and aggressive riding without sacrificing reliability. The Wossner 8250DC delivers the durability and precision engineering...
    09104897
    SKU:
    09104897
    Availability:
    Ships Same Business Day
    Weight:
    0.85 LBS
    BORE SIZE METRIC:
    72.02 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    +0,02 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    71.96 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.02 MM
    DISPLACEMENT:
    293 CC
    Qty in Cart: 0
    Quantity:
    Price:
    $192.00
    Subtotal:
  • Wossner Piston Kit 39.47mm for KTM 50 SX 2009-2025 8262DB

    Wossner Piston Kit 39.47mm for KTM 50 SX 2009-2025 8262DB

    WOSSNER

    $102.00
    If you're running a KTM 50 SX, piston wear is inevitable—and when it hits, you need a direct replacement that matches OEM specifications without compromise. The Wössner 8262DB delivers German...
    09104900
    SKU:
    09104900
    Availability:
    Ships Same Business Day
    Weight:
    0.25 LBS
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    39.51 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE METRIC:
    +0.01 MM
    DISPLACEMENT:
    49 CC
    PISTON SIZE METRIC:
    39.47 MM
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    $102.00
    Qty in Cart: 0
    Quantity:
    Price:
    $102.00
    Subtotal:
  • Wossner Piston Kit 76.96mm Kawasaki KX250F 2011-2014 8814DA

    Wossner Piston Kit 76.96mm Kawasaki KX250F 2011-2014 8814DA

    WOSSNER

    $184.00
    When you're running a KX250F at the edge of its limits, piston durability and precision become non-negotiable. The Wossner 8814DA delivers German-engineered reliability with a complete kit that...
    09104989
    SKU:
    09104989
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    UNITS:
    KIT
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    77.00 MM
    ENGINE TYPE:
    4-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    COMPRESSION RATIO IMPERIAL:
    13.5:1
    MODEL:
    PREMIUM SERIES
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    76.96 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $184.00
    Subtotal:
  • Wossner Kawasaki KX250F 2011-2014 13.5:1 CR 8814DC

    Wossner Kawasaki KX250F 2011-2014 13.5:1 CR 8814DC

    WOSSNER

    $184.00
    The stock piston in your KX250F won't survive sustained high-RPM performance or aggressive riding. Wossner's 13.5:1 compression ratio piston delivers the reliability and efficiency you need to push...
    09104991
    SKU:
    09104991
    Availability:
    Ships Same Business Day
    Weight:
    0.50 LBS
    COMPRESSION RATIO IMPERIAL:
    13.5:1
    MODEL:
    PREMIUM SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    +0.02 MM
    BORE SIZE METRIC:
    77.02 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    4-STROKE
    PISTON SIZE METRIC:
    76.98 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    +0,02 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $184.00
    Subtotal:
  • Total: items /

Adding your products to cart

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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