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 Suzuki RM125 2004-2007 53.96mm Piston Kit 8098DB
WOSSNER
$142.00The 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...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 -
Wossner Piston Kit Kawasaki KX85 2001-2025 48.45mm 8102DA
WOSSNER
$112.00Stock 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...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
$112.00Qty in Cart: 0Quantity:Price:$112.00Subtotal: -
Wossner Piston Kit Kawasaki KX85 2001-2025 48.47mm 8102DC
WOSSNER
$112.00When 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...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
$112.00Qty in Cart: 0Quantity:Price:$112.00Subtotal: -
Wossner Suzuki RM85 2002-2023 47.97mm Piston Kit 8103DC
WOSSNER
$112.00A 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...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 -
Wossner 47.45mm Single Ring Piston Kit for Yamaha YZ85 2002-2025 8104DA
WOSSNER
$112.00A 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...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
$112.00Qty in Cart: 0Quantity:Price:$112.00Subtotal: -
Wossner Yamaha YZ85 2002-2026 Piston Kit 8104DB
WOSSNER
$112.00The 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...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 -
Wossner Piston Kit KTM 85 SX 2003-2025 47.02mm 8147DC
WOSSNER
$112.00The 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...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
$112.00 -
Wossner Dual Ring Piston Kit Honda CR250R 1978-1980 8154DA
WOSSNER
$152.00If 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...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 -
Wossner 53.96mm Single Ring Piston Kit Yamaha YZ125 2005-2021 8160DB
WOSSNER
$122.00When you're pushing a YZ125 to the limit, your piston has to survive extreme combustion pressures and temperatures—stock units often can't handle it. The Wossner 8160DB delivers the reliability and...09104854- SKU:
- 09104854
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 54.01 MM
- TYPE:
- SINGLE RING
- 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
$122.00 -
Wossner Piston Kit Kawasaki KX100 1995-2021 52.45mm 8254DA
WOSSNER
$112.00The Wossner 8254DA piston kit is engineered specifically for the Kawasaki KX100 (1995-2021) to deliver the reliability and precision required in competitive 2-stroke racing. A complete, bolt-on...09104898- SKU:
- 09104898
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 52.45 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 99 CC
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 52.50 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- SINGLE RING
$112.00 -
Wossner Piston Kit KTM 50 SX 2009-2025 8262DA
WOSSNER
$102.00A worn or damaged piston directly kills engine performance, compression, and reliability—especially in high-revving 2-stroke applications where tolerances are razor-thin. The Wossner 8262DA is...09104899- SKU:
- 09104899
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON SIZE METRIC:
- 39.46 MM
- TYPE:
- SINGLE RING
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 49 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 39.50 MM
- MODEL:
- STANDARD SERIES
- PRODUCT NAME:
- PISTON KIT
$102.00 -
Wössner Piston Kit 39.48mm for KTM 50 SX 2009-2025 8262DC
WOSSNER
$102.00The Wössner Piston Kit 8262DC is engineered for 2-stroke racers who demand reliability under extreme combustion pressures. This complete bolt-on kit eliminates the guesswork of individual component...09104901- SKU:
- 09104901
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- DISPLACEMENT:
- 49 CC
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- SINGLE RING
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,02 MM
- BORE - OVERSIZE METRIC:
- +0.02 MM
- BORE SIZE METRIC:
- 39.52 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- MODEL:
- STANDARD SERIES
- PISTON SIZE METRIC:
- 39.48 MM
- PRODUCT NAME:
- PISTON KIT
$102.00Qty in Cart: 0Quantity:Price:$102.00Subtotal: -
Wossner Piston Kit 94.95mm KTM 520 EXC 2000-2002 8547DA
WOSSNER
$214.00If you're running a KTM 520 EXC hard, factory pistons won't cut it. Wossner's 8547DA kit delivers the reliability and performance you need for sustained high-RPM operation, with precision engineering...09104923- SKU:
- 09104923
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- BORE SIZE METRIC:
- 95.00 MM
- PISTON SIZE METRIC:
- 94.95 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PREMIUM SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
$214.00 -
Wossner Piston Kit KTM 525 EXC 2003-2007 8547DB
WOSSNER
$214.00The KTM 525 EXC demands a piston that can handle the demands of serious off-road riding—extreme heat, variable load conditions, and sustained high RPMs. The Wössner 8547DB delivers precisely that...09104924- SKU:
- 09104924
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +0,01 MM
- BORE - OVERSIZE METRIC:
- +0.01 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON SIZE METRIC:
- 94.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 95.01 MM
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PREMIUM SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
$214.00Qty in Cart: 0Quantity:Price:$214.00Subtotal: -
Wossner Piston Kit Yamaha YZ250F 2001-2004 77mm 12.5:1 Compression 8559DA
WOSSNER
$184.00The Wossner 8559DA piston kit is engineered to restore or upgrade your YZ250F's top-end with precision-matched components that handle sustained high-RPM operation. Factory OEM pistons wear, lose...09104925- SKU:
- 09104925
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE SIZE METRIC:
- 77.00 MM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- MODEL:
- PREMIUM SERIES
- PISTON SIZE METRIC:
- 76.96 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
$184.00 -
Wossner Piston Kit 76.97mm Yamaha YZ250F 2001-2004 WR250F 2001-2013 8559DB
WOSSNER
$184.00If you're running a YZ250F or WR250F hard on the track or trail, the factory piston won't cut it when you're pushing peak RPMs and demanding maximum reliability. The Wossner 8559DB is...09104926- SKU:
- 09104926
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE - OVERSIZE:
- +0,01 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 77.01 MM
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- MODEL:
- PREMIUM SERIES
- BORE - OVERSIZE METRIC:
- +0.01 MM
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 76.97 MM
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
$184.00Qty in Cart: 0Quantity:Price:$184.00Subtotal: -
Wossner Piston Kit 89.94mm Suzuki DR-Z400S 2000-2020 8563DA
WOSSNER
$184.00Stock pistons can't handle aggressive tuning and high RPM demands—the Wossner 8563DA is engineered to take the punishment. Built from 4032 T6 forged aluminum and optimized through FEA analysis, this...09104927- SKU:
- 09104927
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- MODEL:
- STANDARD SERIES
- PISTON SIZE METRIC:
- 89.94 MM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 90.00 MM
- COMPRESSION RATIO IMPERIAL:
- 12.2:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$184.00Qty in Cart: 0Quantity:Price:$184.00Subtotal: -
Wossner Piston Kit 90mm 12.25:1 Compression Suzuki DR-Z400S 2000-2020 8563DB
WOSSNER
$184.00Stock pistons can't handle sustained high RPM or aggressive tuning without risking catastrophic failure. The Wossner 8563DB delivers the strength and precision engineering needed to safely extract...09104928- SKU:
- 09104928
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE - OVERSIZE:
- +0,01 MM
- MODEL:
- STANDARD SERIES
- PISTON SIZE METRIC:
- 89.95 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 90.01 MM
- COMPRESSION RATIO IMPERIAL:
- 12.2:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- STREET
- BORE - OVERSIZE METRIC:
- +0.01 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$184.00 -
Wossner Piston Kit KTM 450 EXC 2003-2009 11.1:1 CR 8581DB
WOSSNER
$204.00The Wossner Piston Kit 8581DB is engineered to restore or exceed OEM performance in your KTM 450 EXC while delivering the durability demanded by serious trail and off-road riders. Built from 4032 T6...09104933- SKU:
- 09104933
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- BORE - OVERSIZE:
- +0,01 MM
- COMPRESSION RATIO IMPERIAL:
- 11.1:1
- MODEL:
- STANDARD SERIES
- PISTON SIZE METRIC:
- 88.97 MM
- PRODUCT NAME:
- PISTON KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 89.01 MM
- BORE - OVERSIZE METRIC:
- +0.01 MM
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$204.00 -
Wossner Piston Kit 76.97mm Suzuki RM-Z250 2004-2006 8582DB
WOSSNER
$184.00When you're pushing your RM-Z250 to the limit, a factory piston simply won't cut it. The Wossner 8582DB delivers the durability and thermal stability required for sustained high-RPM performance,...09104936- SKU:
- 09104936
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE - OVERSIZE METRIC:
- +0.01 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.6:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +0,01 MM
- MODEL:
- STANDARD SERIES
- BORE SIZE METRIC:
- 77.01 MM
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 76.97 MM
$184.00 -
Wossner Piston Kit 76.80mm 13.9:1 Compression Honda CRF-250R 2010-2013 8775DA
WOSSNER
$204.00Stock pistons simply can't handle the demands of high-performance riding—heat, detonation, and wear will cut your engine life short. The Wössner 8775DA delivers the durability and precision you need...09104980- SKU:
- 09104980
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 76.76 MM
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 76.80 MM
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PRO SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- UNITS:
- KIT
$204.00 -
Wossner Piston Kit Suzuki RM-Z250 2010-2025 76.96mm 8781DA
WOSSNER
$184.00The Wossner 8781DA piston kit is purpose-built for serious RM-Z250 riders who demand reliability and consistent performance across high-RPM, high-load riding conditions. Factory pistons wear out...09104983- SKU:
- 09104983
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON SIZE METRIC:
- 76.96 MM
- BORE - OVERSIZE:
- STANDARD
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.6:1
- PRODUCT NAME:
- PISTON KIT
$184.00 -
Wossner 76.97mm Piston Kit for Suzuki RM-Z250 2010-2019 8781DB
WOSSNER
$184.00If you're running a RM-Z250 and expecting reliable power delivery through every race, a quality piston kit isn't negotiable. Worn or stock pistons compromise combustion efficiency, increase friction...09104984- SKU:
- 09104984
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE - OVERSIZE METRIC:
- +0.01 MM
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PRO SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 76.97 MM
- BORE - OVERSIZE:
- +0,01 MM
- BORE SIZE METRIC:
- 77.01 MM
- COMPRESSION RATIO IMPERIAL:
- 13.6:1
- PRODUCT NAME:
- PISTON KIT
$184.00 -
Wossner Piston Kit 87.95mm KTM 350 SX-F 2011-2020 8807DA
WOSSNER
$214.00The Wossner 8807DA piston kit restores your KTM 350 SX-F to factory specifications—or beyond—with OEM-quality internals that deliver reliable power across the rev range. Whether you're running stock...09104986- SKU:
- 09104986
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- MODEL:
- STANDARD SERIES
- PISTON SIZE METRIC:
- 87.95 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 88.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.7:1
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
$214.00 -
Wossner Piston Kit 87.96mm for 2011-2023 KTM 350 SX-F 8807DB
WOSSNER
$214.00If you're running a 2011-2023 KTM 350 SX-F, piston wear directly impacts engine response, efficiency, and longevity. The Wössner 8807DB kit delivers precision-engineered replacement with premium...09104987- SKU:
- 09104987
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.7:1
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- BORE - OVERSIZE:
- +0,01 MM
- BORE - OVERSIZE METRIC:
- +0.01 MM
- BORE SIZE METRIC:
- 88.01 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- MODEL:
- STANDARD SERIES
- PISTON SIZE METRIC:
- 87.96 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
$214.00Qty in Cart: 0Quantity:Price:$214.00Subtotal: -
Wossner Piston Kit 87.97mm for KTM 350 SX-F 2011-2022 8807DC
WOSSNER
$214.00The stock piston in your KTM 350 SX-F experiences significant thermal and mechanical stress during aggressive riding. A quality replacement piston kit restores compression, reduces friction losses,...09104988- SKU:
- 09104988
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE:
- +0,02 MM
- COMPRESSION RATIO IMPERIAL:
- 13.7:1
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE METRIC:
- +0.02 MM
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 88.02 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 87.97 MM
$214.00 -
Wossner Piston Kit 77.96mm Gas Gas EC 250 F 2021-2023 8865DA
WOSSNER
$184.00The Wossner 8865DA piston kit delivers the reliability and precision your Gas Gas EC 250 F demands, whether you're pushing hard on the track or maintaining peak performance in the dirt. Factory...09104993- SKU:
- 09104993
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- MODEL:
- PREMIUM SERIES
- PISTON SIZE METRIC:
- 77.96 MM
- BORE SIZE METRIC:
- 78.00 MM
- PRODUCT NAME:
- PISTON KIT
$184.00 -
Wossner Piston Kit Sherco 300 SEF-R 2014-2018 8906DA
WOSSNER
$214.00When you're pushing a 2-stroke to its limits, piston failure isn't an option—it's a catastrophe. The Wossner 8906DA delivers the durability and precision engineering needed to survive high-RPM abuse...09104998- SKU:
- 09104998
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PISTON SIZE METRIC:
- 83.94 MM
- UNITS:
- KIT
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- OEM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 84.00 MM
- PISTON MATERIAL:
- FORGED
$214.00 -
Wossner Piston Kit Polaris Xplorer 500 1997-2014 8691D050
WOSSNER
$194.00Stock pistons in your Polaris Xplorer 500 are compromised the moment you push the engine beyond factory limits—thermal stress, friction, and premature wear become inevitable. The Wossner Piston Kit...09106110- SKU:
- 09106110
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- BORE - OVERSIZE:
- +0,50 MM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 92.50 MM
- PISTON SIZE METRIC:
- 92.45 MM
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.3:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- ATV
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- UTV
- PISTON MATERIAL:
- FORGED
$194.00 -
Wossner Piston Kit Honda CRF450R 2017-2025 14.0:1 8937DA
WOSSNER
$214.00Stock pistons can't handle the demands of high-performance riding—heat cycling, detonation, and sustained RPMs break them down. The Wössner Piston Kit for your CRF450R replaces worn or damaged...09106159- SKU:
- 09106159
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 96.00 MM
- PRODUCT NAME:
- PISTON KIT
- PISTON SIZE METRIC:
- 95.95 MM
- PISTON MATERIAL:
- FORGED
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PRO SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
$214.00 -
Wossner Piston Kit Kawasaki KX450F 2015 12.8:1 8920DA
WOSSNER
$204.00The Wossner Piston Kit is engineered specifically for the Kawasaki KX450F to deliver the reliability and performance demanded by serious racers and high-mileage riders. Stock pistons wear under...09106163- SKU:
- 09106163
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON SIZE METRIC:
- 95.98 MM
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 96.03 MM
- MODEL:
- STANDARD SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$204.00 -
Wossner Piston Kit Kawasaki KX450F 2016-2018 8931DA
WOSSNER
$204.00The Wossner Piston Kit is engineered to restore or upgrade your KX450F's top-end with German precision and proven durability. OEM pistons wear, lose ring seal, and reduce power—this complete kit...09106164- SKU:
- 09106164
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE SIZE METRIC:
- 96.03 MM
- MODEL:
- STANDARD SERIES
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON SIZE METRIC:
- 95.98 MM
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$204.00Qty in Cart: 0Quantity:Price:$204.00Subtotal: -
Wossner Piston Kit Kawasaki KX250F 2017-2018 14.0:1 CR 8932DA
WOSSNER
$204.00When you're pushing your KX250F to its limits, your piston needs to match your ambition. The Wössner 8932DA delivers the precision engineering and durability required to handle aggressive riding...09106165- SKU:
- 09106165
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 76.96 MM
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- MODEL:
- PREMIUM SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- BORE SIZE METRIC:
- 77.00 MM
$204.00 -
Wossner Piston Kit Kawasaki KX250F 2017-2018 14.0:1 CR 8932DB
WOSSNER
$204.00When you're pushing your KX250F to the limit, stock pistons become your weakest link. The Wossner 14.0:1 CR piston kit delivers the thermal stability and precision clearances required to survive...09106166- SKU:
- 09106166
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE METRIC:
- +0.01 MM
- BORE - OVERSIZE:
- +0,01 MM
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- PISTON SIZE METRIC:
- 76.97 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 77.01 MM
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PREMIUM SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
$204.00Qty in Cart: 0Quantity:Price:$204.00Subtotal: -
Wossner Piston Kit KTM 350 EXC-F 2012-2016 8941DA
WOSSNER
$214.00Stock pistons wear out—especially in high-performance applications where aggressive riding and forced induction push your EXC-F 350 to its limits. The Wössner 8941DA gives you German-engineered...09106167- SKU:
- 09106167
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 88.00 MM
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 87.95 MM
- UNITS:
- KIT
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PRO SERIES
- PISTON MATERIAL:
- ALUMINUM ALLOY
$214.00 -
Wossner Piston Kit Kawasaki KX450 2019-2023 12.6:1 8958DA
WOSSNER
$204.00When you're pushing a KX450 to its limits, your piston is taking a beating—and a worn or inadequate unit will cost you horsepower, throttle response, and reliability. The Wossner 8958DA is...09106168- SKU:
- 09106168
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- BORE SIZE METRIC:
- 96.00 MM
- PRODUCT NAME:
- PISTON KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PISTON SIZE METRIC:
- 95.96 MM
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.6:1
- ENGINE TYPE:
- 4-STROKE
- MODEL:
- PREMIUM SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$204.00 -
Wossner Piston Kit Kawasaki KX450 2019-2023 12.6:1 CR 8958DB
WOSSNER
$204.00The Wossner Piston Kit for your KX450 delivers the durability and thermal stability demanded by modern motocross competition. With 4032 T6 forged aluminum construction and a permanent skirt coating,...09106169- SKU:
- 09106169
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PISTON SIZE METRIC:
- 95.97 MM
- PRODUCT NAME:
- PISTON KIT
- BORE - OVERSIZE:
- +0,01 MM
- BORE - OVERSIZE METRIC:
- +0.01 MM
- BORE SIZE METRIC:
- 96.01 MM
- COMPRESSION RATIO IMPERIAL:
- 12.6:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- MODEL:
- PREMIUM SERIES
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$204.00 -
Wossner Piston Ring Set for 2014-2020 Polaris RZR 570 1040XSU-3
WOSSNER
$62.50The Wossner Piston Ring Set is engineered to restore proper cylinder-to-piston sealing on your 2014-2020 Polaris RZR 570, directly improving combustion efficiency and power delivery. Factory rings...09120849- SKU:
- 09120849
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BORE SIZE METRIC:
- 103.92 MM
- PRODUCT NAME:
- PISTON RING SET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- UTV
$62.50 -
Wossner Piston Ring Set for 2007-2012 Polaris Sportsman 800 EFI 09120851
WOSSNER
$54.59Ring blow-by and combustion leakage rob your Sportsman 800 of power and fuel efficiency—a quality piston ring set restores cylinder sealing and brings back the responsiveness you're missing. Whether...09120851- SKU:
- 09120851
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BORE SIZE METRIC:
- 80.00 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- PISTON RING SET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$54.59Qty in Cart: 0Quantity:Price:$54.59Subtotal: -
On Sale
Wossner Piston Ring Set for 2005-2006 Polaris 900 SwitchBack RST8300
WOSSNER
MSRP: $18.50Now: $12.00Was: $18.50If you're rebuilding a Wossner piston setup in your 2005-2006 Polaris 900 SwitchBack, ring quality directly impacts compression retention, blow-by control, and overall engine longevity. The Wossner...09120898- SKU:
- 09120898
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- SNOW
- BORE SIZE METRIC:
- 83.00 MM
- UNITS:
- EACH
- PRODUCT NAME:
- RING SET
MSRP: $18.50Now: $12.00Was: $18.50
