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Dirt Bike Piston and Ring Kits

Dirt Bike Piston and Ring Kits

Dirt Bike Piston and Ring Kits

Dirt Bike Piston & Ring Kits for Yamaha YZ85, WR250 & YZ250 at JJ Motorsports

Rebuild your dirt bike's top end for maximum power and reliability with premium piston and ring kits from JJ Motorsports, forged from high-strength aluminum for superior heat resistance, lightweight performance, and precise fit in motocross, enduro, and trail riding. Our selection includes complete kits with pistons, high-performance rings, wrist pins, circlips, top-end bearings, and gaskets designed for enhanced combustion efficiency, reduced blow-by, and longer engine life under high-RPM abuse. Compatible with popular models like Yamaha YZ85 (2002-2018), WR250, and YZ250, these Wiseco-engineered components feature CNC-machined crowns for optimal cam shape, ArmorGlide skirt coatings for low friction, and 4032 alloy construction for durability in dusty, aggressive conditions. Whether you're refreshing a youth 85cc 2-stroke or upgrading a 250cc big bore, these kits ensure crisp throttle response, better sealing, and race-ready power without the need for custom boring—perfect for DIY rebuilds or pro-level maintenance.

Shop trusted brands like Wiseco for race-proven quality. Explore related categories such as dirt bike engine for cylinders and valves or dirt bike air and fuel for carburetors and jets.

Top Dirt Bike Piston & Ring Kits

Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DA

    Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DA

    WOSSNER

    $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 restore—or exceed—OEM performance with a complete,...
    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
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DB

    Wossner Yamaha YZ250 1992-1998 Piston Kit 8023DB

    WOSSNER

    $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 engineering and premium 4032 T6 forged aluminum that handles the...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit Yamaha YZ250 1992-1998 8023DC

    Wossner Piston Kit Yamaha YZ250 1992-1998 8023DC

    WOSSNER

    $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 your engine needs to sustain peak power across multiple...
    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
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • 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

    $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 engineered for durability, reduced friction, and sustained...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit Kawasaki KX250 1992-2001 8026DC

    Wossner Piston Kit Kawasaki KX250 1992-2001 8026DC

    WOSSNER

    $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 precision needed for consistent performance across high-load...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • 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

    $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 precision-engineered German construction, restoring...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit for KTM 200 EXC 1998-2016 8048DB

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

    WOSSNER

    $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 component that restores lost compression, reduces...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit KTM 125 SX 2001-2006 8056DA

    Wossner Piston Kit KTM 125 SX 2001-2006 8056DA

    WOSSNER

    $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 precision, restoring compression and responsiveness...
    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
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Suzuki RM250 2000-2002 66.34mm Piston Kit 8059DA

    Wossner Suzuki RM250 2000-2002 66.34mm Piston Kit 8059DA

    WOSSNER

    $152.00
    The Wossner RM250 piston kit is engineered for 2-stroke racers who demand reliability under extreme conditions. With a complete assembly including piston, rings, pin, and clips, you get a bolt-on solution that eliminates guesswork and downtime. German...
    09104769
    SKU:
    09104769
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    66.34 MM
    DISPLACEMENT:
    249 CC
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    DUAL RING
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    66.40 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    Subtotal:
  • Wossner Piston Kit 53.96mm Yamaha YZ125 1998-2001 8091DB

    Wossner Piston Kit 53.96mm Yamaha YZ125 1998-2001 8091DB

    WOSSNER

    $122.00
    The stock piston in your YZ125 can't handle the demands of aggressive riding—wear accelerates, blow-by increases, and power delivery suffers. This Wössner 8091DB kit restores your engine to peak performance with OEM-quality components engineered to...
    09104820
    SKU:
    09104820
    Availability:
    Ships Same Business Day
    Weight:
    0.40 LBS
    DISPLACEMENT:
    124 CC
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    BORE SIZE METRIC:
    54.01 MM
    BORE - OVERSIZE:
    +0,01 MM
    BORE - OVERSIZE METRIC:
    +0.01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    53.96 MM
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $122.00
    Subtotal:
  • Wossner Piston Kit 65.94mm Kawasaki KDX200 1986-2006 8093DA

    Wossner Piston Kit 65.94mm Kawasaki KDX200 1986-2006 8093DA

    WOSSNER

    $142.00
    If you're running a KDX200 and want to restore lost compression or upgrade to a higher-displacement setup, a quality piston kit is non-negotiable. The Wossner 8093DA delivers the precision engineering and durability you need for consistent power delivery...
    09104822
    SKU:
    09104822
    Availability:
    Ships Same Business Day
    Weight:
    0.70 LBS
    UNITS:
    KIT
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    BORE SIZE METRIC:
    66.00 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    65.94 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    198 CC
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit Suzuki RM125 2004-2007 8098DA

    Wossner Piston Kit Suzuki RM125 2004-2007 8098DA

    WOSSNER

    $142.00
    The Wossner Piston Kit 8098DA is engineered specifically for the Suzuki RM125 (2004-2007) to restore or enhance your 2-stroke's performance with OEM-quality reliability. The premium 4032 T6 forged aluminum construction delivers superior heat resistance...
    09104823
    SKU:
    09104823
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    BORE SIZE METRIC:
    54.00 MM
    TYPE:
    SINGLE RING
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    53.95 MM
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Suzuki RM125 2004-2007 53.96mm Piston Kit 8098DB

    Wossner Suzuki RM125 2004-2007 53.96mm Piston Kit 8098DB

    WOSSNER

    $142.00
    The Wössner 8098DB piston kit is engineered to restore your RM125's peak performance and reliability. Whether you're rebuilding after a seizure or upgrading from OEM components, this German-precision piston delivers the durability and efficiency your...
    09104824
    SKU:
    09104824
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    BORE SIZE METRIC:
    54.01 MM
    DISPLACEMENT:
    124 CC
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PISTON SIZE METRIC:
    53.96 MM
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +0,01 MM
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    $142.00
    Qty in Cart: 0
    Quantity:
    Price:
    $142.00
    Subtotal:
  • Wossner Piston Kit Kawasaki KX85 2001-2025 48.45mm 8102DA

    Wossner Piston Kit Kawasaki KX85 2001-2025 48.45mm 8102DA

    WOSSNER

    $112.00
    Stock pistons can't handle the demands of high-performance riding—worn rings lose compression, increased friction robs you of power, and piston rock creates unwanted noise and wear. The Wossner 8102DA delivers the complete solution with OEM-spec fitment...
    09104826
    SKU:
    09104826
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    MODEL:
    STANDARD SERIES
    PISTON SIZE METRIC:
    48.45 MM
    PRODUCT NAME:
    PISTON KIT
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    FORGED
    UNITS:
    KIT
    TYPE:
    SINGLE RING
    BORE SIZE METRIC:
    48.50 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    RIDING STYLE:
    OFF-ROAD
    $112.00
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Piston Kit Kawasaki KX85 2001-2025 48.47mm 8102DC

    Wossner Piston Kit Kawasaki KX85 2001-2025 48.47mm 8102DC

    WOSSNER

    $112.00
    When you're pushing a KX85 to its limits, piston reliability directly impacts your power delivery and engine longevity. The Wossner 8102DC delivers the precision engineering and material science needed to handle aggressive 2-stroke demands without...
    09104828
    SKU:
    09104828
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE:
    +0,02 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    48.47 MM
    BORE - OVERSIZE METRIC:
    +0.02 MM
    BORE SIZE METRIC:
    48.52 MM
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Suzuki RM85 2002-2023 47.97mm Piston Kit 8103DC

    Wossner Suzuki RM85 2002-2023 47.97mm Piston Kit 8103DC

    WOSSNER

    $112.00
    A worn or damaged piston directly kills engine performance, reliability, and throttle response on your RM85—especially critical for 2-stroke engines that depend on precision tolerances. The Wossner 8103DC delivers a complete, ready-to-install solution...
    09104831
    SKU:
    09104831
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE - OVERSIZE METRIC:
    +0.02 MM
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    +0,02 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    BORE SIZE METRIC:
    48.02 MM
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    47.97 MM
    $112.00
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner 47.45mm Single Ring Piston Kit for Yamaha YZ85 2002-2025 8104DA

    Wossner 47.45mm Single Ring Piston Kit for Yamaha YZ85 2002-2025 8104DA

    WOSSNER

    $112.00
    A worn or damaged piston compromises combustion efficiency, increases blow-by, and accelerates engine wear—especially critical in 2-stroke applications where precision tolerances are unforgiving. The Wössner 8104DA restores your YZ85's performance with a...
    09104832
    SKU:
    09104832
    Availability:
    Ships Same Business Day
    Weight:
    0.35 LBS
    BORE SIZE METRIC:
    47.50 MM
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PRODUCT NAME:
    PISTON KIT
    TYPE:
    SINGLE RING
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    47.45 MM
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Yamaha YZ85 2002-2026 Piston Kit 8104DB

    Wossner Yamaha YZ85 2002-2026 Piston Kit 8104DB

    WOSSNER

    $112.00
    The Wossner YZ85 Piston Kit 8104DB is engineered to deliver the reliability and durability your 2-stroke engine demands, whether you're pushing hard on the track or putting in serious practice hours. This complete kit eliminates the guesswork of sourcing...
    09104833
    SKU:
    09104833
    Availability:
    Ships Same Business Day
    Weight:
    0.30 LBS
    BORE - OVERSIZE METRIC:
    +0.01 MM
    BORE SIZE METRIC:
    47.51 MM
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    PRODUCT NAME:
    PISTON KIT
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE:
    +0,01 MM
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    47.46 MM
    $112.00
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Piston Kit KTM 85 SX 2003-2025 47.02mm 8147DC

    Wossner Piston Kit KTM 85 SX 2003-2025 47.02mm 8147DC

    WOSSNER

    $112.00
    The Wossner Piston Kit 8147DC is engineered for KTM 85 SX riders who demand reliability and consistent power delivery across the entire RPM band. Two-stroke pistons experience extreme thermal and mechanical stress, and a quality forged piston directly...
    09104849
    SKU:
    09104849
    Availability:
    Ships Same Business Day
    Weight:
    0.36 LBS
    ENGINE TYPE:
    2-STROKE
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SINGLE RING
    UNITS:
    KIT
    BORE - OVERSIZE METRIC:
    +0.02 MM
    BORE SIZE METRIC:
    47.02 MM
    DISPLACEMENT:
    84 CC
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON MATERIAL:
    FORGED
    PISTON SIZE METRIC:
    46.97 MM
    BORE - OVERSIZE:
    +0,02 MM
    MODEL:
    STANDARD SERIES
    PRODUCT NAME:
    PISTON KIT
    Qty in Cart: 0
    Quantity:
    Price:
    $112.00
    Subtotal:
  • Wossner Dual Ring Piston Kit Honda CR250R 1978-1980 8154DA

    Wossner Dual Ring Piston Kit Honda CR250R 1978-1980 8154DA

    WOSSNER

    $152.00
    If you're rebuilding a CR250R top-end, you need a piston that can handle the demands of a high-revving 2-stroke without compromise. The Wossner 8154DA delivers the durability and precision fit that serious racers and mechanics expect, engineered to...
    09104851
    SKU:
    09104851
    Availability:
    Ships Same Business Day
    Weight:
    0.75 LBS
    UNITS:
    KIT
    ENGINE TYPE:
    2-STROKE
    PISTON MATERIAL:
    ALUMINUM ALLOY
    PISTON SIZE METRIC:
    69.94 MM
    PRODUCT NAME:
    PISTON KIT
    RIDING STYLE:
    ATV
    DISPLACEMENT:
    248 CC
    MODEL:
    STANDARD SERIES
    RIDING STYLE:
    OFF-ROAD
    BORE - OVERSIZE:
    STANDARD
    BORE - OVERSIZE METRIC:
    STANDARD
    BORE SIZE METRIC:
    70.00 MM
    DISPLACEMENT:
    249 CC
    PISTON MATERIAL:
    FORGED
    TYPE:
    DUAL RING
    $152.00
    Qty in Cart: 0
    Quantity:
    Price:
    $152.00
    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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