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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 71.94mm 2014-2016 Husqvarna TE300 8250DA

    Wossner Piston Kit 71.94mm 2014-2016 Husqvarna TE300 8250DA

    WOSSNER

    $192.00
    The TE300's stock piston won't cut it if you're pushing higher RPMs or running extended sessions in demanding terrain. Wossner's 8250DA kit delivers the durability and thermal stability a 2-stroke...
    09104895
    SKU:
    09104895
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE SIZE METRIC:
    72.00 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    DISPLACEMENT:
    293 CC
    PISTON SIZE METRIC:
    71.94 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $192.00
    Subtotal:
  • Wossner Piston Kit Honda TRX420 Rancher 2007-2025 8869DA

    Wossner Piston Kit Honda TRX420 Rancher 2007-2025 8869DA

    WOSSNER

    $164.00
    Your Honda TRX420 Rancher demands a piston kit engineered for real-world durability and consistent performance—not marketing promises. The Wossner 8869DA delivers German precision engineering with...
    09106113
    SKU:
    09106113
    Availability:
    Ships Same Business Day
    Weight:
    0.95 LBS
    PISTON SIZE METRIC:
    86.45 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    86.50 MM
    COMPRESSION RATIO IMPERIAL:
    9.9:1
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    ENGINE TYPE:
    4-STROKE
    MODEL:
    PRO SERIES
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    ATV
    Qty in Cart: 0
    Quantity:
    Price:
    $164.00
    Subtotal:
  • Wossner Piston Kit 66.36mm Honda CR250R 2002-2004 8066DC

    Wossner Piston Kit 66.36mm Honda CR250R 2002-2004 8066DC

    WOSSNER

    $150.96
    Elevate your engine's performance with the WOSSNER Piston Kit 8066DC, designed for 2-stroke applications. This premium piston kit combines cutting-edge engineering with high-quality materials to...
    09105501
    SKU:
    09105501
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    BORE - OVERSIZE:
    +0,02 MM
    DISPLACEMENT:
    249 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    +0.02 MM
    BORE SIZE METRIC:
    66.42 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    66.36 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    $150.96
    Qty in Cart: 0
    Quantity:
    Price:
    $150.96
    Subtotal:
  • Wossner Piston Kit 53.95mm Kawasaki KX125 2003 8073DA

    Wossner Piston Kit 53.95mm Kawasaki KX125 2003 8073DA

    WOSSNER

    $122.00
    Elevate your engine's performance with the WOSSNER Piston Kit 8073DA, designed specifically for 2-stroke applications. Crafted from high-quality materials and engineered in Germany, this piston kit...
    09105503
    SKU:
    09105503
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    53.95 MM
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    54.00 MM
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Connecting Rod Yamaha YZ250F 2014-2025 P4072

    Wossner Connecting Rod Yamaha YZ250F 2014-2025 P4072

    WOSSNER

    $174.00
    When you're rebuilding your YZ250F's crankshaft, a quality connecting rod is non-negotiable—it's the critical link translating combustion force into reliable power delivery. Wössner's 8620 forged...
    09230562
    SKU:
    09230562
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    STYLE:
    STANDARD
    UNITS:
    KIT
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    ENGINE TYPE:
    4-STROKE
    $174.00
    Qty in Cart: 0
    Quantity:
    Price:
    $174.00
    Subtotal:
  • Wossner Connecting Rod Yamaha YFS200 Blaster 1988-2006 P2030

    Wossner Connecting Rod Yamaha YFS200 Blaster 1988-2006 P2030

    WOSSNER

    $122.00
    If you're rebuilding your YFS200 Blaster engine, the connecting rod is a critical component that directly impacts power delivery, reliability, and longevity. Wössner's forged 8620 alloy construction...
    09230566
    SKU:
    09230566
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    STYLE:
    STANDARD
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Connecting Rod KTM 85SX 2003-2012 P2006

    Wossner Connecting Rod KTM 85SX 2003-2012 P2006

    WOSSNER

    $112.00
    The stock connecting rod in your KTM 85SX is a wear item that impacts both power delivery and engine longevity. A quality forged replacement like the Wössner rod restores original performance...
    09230570
    SKU:
    09230570
    Availability:
    Ships Same Business Day
    Weight:
    0.71 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Connecting Rod Yamaha YZ125 1986-1996 P2047

    Wossner Connecting Rod Yamaha YZ125 1986-1996 P2047

    WOSSNER

    $122.00
    The stock connecting rod in your YZ125 is a common failure point during aggressive riding or engine rebuilds. Wossner's forged 8620 alloy rod delivers the strength and reliability needed to handle...
    09230573
    SKU:
    09230573
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Connecting Rod Kit for Honda CR250R 1978-2001 P2021

    Wossner Connecting Rod Kit for Honda CR250R 1978-2001 P2021

    WOSSNER

    $122.00
    A connecting rod failure mid-race or mid-ride isn't just costly—it's catastrophic. The Wossner P2021 kit delivers the strength and reliability your Honda CR250R demands, whether you're rebuilding a...
    09230389
    SKU:
    09230389
    Availability:
    Ships Same Business Day
    Weight:
    1.25 LBS
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    ATV
    RIDING STYLE:
    OFF-ROAD
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner 53.96mm Piston Kit for Honda CR125R 1992-1999 8020DB

    Wossner 53.96mm Piston Kit for Honda CR125R 1992-1999 8020DB

    WOSSNER

    $122.00
    A worn or damaged piston compromises combustion efficiency, increases friction losses, and accelerates wear on your entire top-end assembly. The Wossner 8020DB delivers a complete, ready-to-install...
    09104723
    SKU:
    09104723
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    BORE - OVERSIZE:
    +0,01 MM
    BORE SIZE METRIC:
    54.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    53.96 MM
    DISPLACEMENT:
    125 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit 66.37mm Yamaha YZ250 1999-2023 8216DC

    Wossner Piston Kit 66.37mm Yamaha YZ250 1999-2023 8216DC

    WOSSNER

    $152.00
    The Wossner Piston Kit 8216DC is engineered specifically for Yamaha YZ250 engines, delivering the reliability and precision you need to maintain peak performance across thousands of combustion cycles...
    09104879
    SKU:
    09104879
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    +0,02 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    BORE SIZE METRIC:
    66.42 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    DISPLACEMENT:
    249 CC
    TYPE:
    DUAL RING
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    66.37 MM
    RIDING STYLE:
    OFF-ROAD
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit 44.98mm KTM 65 SX 2009-2023 8241DC

    Wossner Piston Kit 44.98mm KTM 65 SX 2009-2023 8241DC

    WOSSNER

    $102.00
    Stock pistons are a weak link in high-demand 2-stroke engines, especially when pushing a KTM 65 SX to its limits. The Wossner 8241DC delivers the durability and precision engineering needed for...
    09104892
    SKU:
    09104892
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE METRIC:
    +0.02 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    44.98 MM
    PRODUCT NAME:
    PISTON KIT
    ENGINE TYPE:
    2-STROKE
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +0,02 MM
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    BORE SIZE METRIC:
    45.04 MM
    DISPLACEMENT:
    64 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    Qty in Cart: 0
    Quantity:
    Price:
    $102.00
    Subtotal:
  • Wossner Piston Kit Yamaha YFS200 Blaster 1988-2006 8101D150

    Wossner Piston Kit Yamaha YFS200 Blaster 1988-2006 8101D150

    WOSSNER

    $122.00
    A worn or damaged piston directly compromises engine compression, throttle response, and overall reliability—especially critical in 2-stroke applications where piston integrity is non-negotiable. The...
    09105529
    SKU:
    09105529
    Availability:
    Ships Same Business Day
    Weight:
    0.71 LBS
    BORE - OVERSIZE:
    +1,50 MM
    BORE SIZE METRIC:
    67.50 MM
    DISPLACEMENT:
    195 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    +1.50 MM
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    67.44 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Yamaha YFS200 Blaster 1988-2006 Piston Kit 8101D200

    Wossner Yamaha YFS200 Blaster 1988-2006 Piston Kit 8101D200

    WOSSNER

    $122.00
    The Wossner 8101D200 piston kit restores your YFS200 Blaster to factory specifications or serves as a reliable upgrade path for higher-load riding. With 4032 T6 forged aluminum and a permanent skirt...
    09105530
    SKU:
    09105530
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    BORE - OVERSIZE:
    +2,00 MM
    BORE - OVERSIZE METRIC:
    +2.00 MM
    BORE SIZE METRIC:
    68.00 MM
    DISPLACEMENT:
    195 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    ATV
    UNITS:
    KIT
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    67.94 MM
    TYPE:
    DUAL RING
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Single Ring Piston Kit Kawasaki KX125 1990 8106DA

    Wossner Single Ring Piston Kit Kawasaki KX125 1990 8106DA

    WOSSNER

    $117.95
    A piston kit is the heart of 2-stroke performance—worn or inadequate pistons directly limit power delivery, increase blow-by, and accelerate engine wear. The Wossner 8106DA is engineered to restore...
    09105531
    SKU:
    09105531
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    BORE SIZE METRIC:
    56.00 MM
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    PISTON SIZE METRIC:
    55.94 MM
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    BORE - OVERSIZE METRIC:
    STANDARD
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $117.95
    Subtotal:
  • Wossner Piston Kit Yamaha YZ250 1988-1991 68.44mm 8134D050

    Wossner Piston Kit Yamaha YZ250 1988-1991 68.44mm 8134D050

    WOSSNER

    $152.00
    A worn or damaged piston directly undermines your YZ250's power delivery, throttle response, and engine longevity. This Wossner kit restores—or significantly upgrades—your 2-stroke's performance with...
    09105547
    SKU:
    09105547
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    DISPLACEMENT:
    246 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    68.44 MM
    BORE - OVERSIZE METRIC:
    +0.50 MM
    BORE SIZE METRIC:
    68.50 MM
    BORE - OVERSIZE:
    +0,50 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Yamaha YZ250 1988-1991 68.94mm Piston Kit 8134D100

    Wossner Yamaha YZ250 1988-1991 68.94mm Piston Kit 8134D100

    WOSSNER

    $152.00
    The Wossner YZ250 piston kit delivers the precision engineering your 2-stroke engine demands, whether you're chasing lap times or rebuilding after hard use. This complete kit—piston, rings, pin, and...
    09105548
    SKU:
    09105548
    Availability:
    Ships Same Business Day
    Weight:
    0.80 LBS
    BORE - OVERSIZE:
    +1,00 MM
    DISPLACEMENT:
    246 CC
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    +1.00 MM
    BORE SIZE METRIC:
    69.00 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    68.94 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit 67.94mm 2-Stroke 246cc 8134DA

    Wossner Piston Kit 67.94mm 2-Stroke 246cc 8134DA

    WOSSNER

    $152.00
    If you're running a 246cc 2-stroke at the limit, piston failure isn't an option—it's a catastrophe. The Wossner 8134DA delivers German-engineered reliability with a complete kit that eliminates...
    09105551
    SKU:
    09105551
    Availability:
    Ships Same Business Day
    Weight:
    0.76 LBS
    DISPLACEMENT:
    246 CC
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    67.94 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    68.00 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Connecting Rod Yamaha YZ80 1993-2001 P2008

    Wossner Connecting Rod Yamaha YZ80 1993-2001 P2008

    WOSSNER

    $112.00
    If you're rebuilding your YZ80's bottom end, a quality connecting rod is non-negotiable—it's the critical link between your piston and crankshaft that determines how reliably your engine handles peak...
    09230400
    SKU:
    09230400
    Availability:
    Ships Same Business Day
    Weight:
    0.55 LBS
    PRODUCT NAME:
    CONNECTING ROD KIT
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    STYLE:
    STANDARD
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    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
    $214.00
    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
    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
    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:
  • 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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