HomeStore

Wiseco Piston Kit for 1999-26 Yamaha YZ250/X - Bored to 68.50mm - 804M06850

Product image 1

Wiseco Piston Kit for 1999-26 Yamaha YZ250/X - Bored to 68.50mm - 804M06850

Wiseco Big Bore Piston Kit

  • These kits contain everything you need to complete your piston repair, the first time
  • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy.
  • All Piston Kits are precision crafted and forged in the USA

Wiseco's Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your piston repair, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. 2-stroke kits feature our Pro-Lite pistons that are CNC machined for optimal cam shape and profile for peak HP and service life. 4-stroke kits feature a race-ready dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. 4-stroke race applications feature Wiseco's Armor Glide skirt coating to provide reduced friction and noise to contribute to increased horsepower. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Super-bike, and more.

Product Line Wiseco Piston Kit
Part Number 804M06850
Fitment Type Model-Size-Specific Fitment
Use Type Aftermarket Performance Replacement
Unit Sale Qty Each
Style Big Bore Piston Kit
Position
Material
Finish Ceramic Composite Bore
Piston/Cylinder Size 68.50mm
Piston Size Added 2.10mm
Cylinder Stroke Volume 72.00mm
Final Engine Displacement 265cc
California Emissions FALSE
Product Disclaimer You MUST measure the size of your cylinder BEFORE ORDERING. Damage/Return of a piston due to ordering the wrong size will not be accepted.
Fitment Note
Fitment Note
Fitment Note
Fitment Note Cylinder sleeving/replating required
Fitment Note Replacement Rings PN 2697CD

2020 Yamaha YZ250
2019 Yamaha YZ250
2018 Yamaha YZ250
2017 Yamaha YZ250
2016 Yamaha YZ250
2015 Yamaha YZ250
2014 Yamaha YZ250
2013 Yamaha YZ250
2012 Yamaha YZ250
2011 Yamaha YZ250
2010 Yamaha YZ250
2009 Yamaha YZ250
2008 Yamaha YZ250
2007 Yamaha YZ250
2006 Yamaha YZ250
2005 Yamaha YZ250
2004 Yamaha YZ250
2003 Yamaha YZ250
2002 Yamaha YZ250
2020 Yamaha YZ250X
2019 Yamaha YZ250X
2018 Yamaha YZ250X
2017 Yamaha YZ250X
2016 Yamaha YZ250X

$159.00
Wiseco Piston Kit for 1999-26 Yamaha YZ250/X - Bored to 68.50mm - 804M06850
$159.00

Product Information

Shipping & Returns

Description

Wiseco Big Bore Piston Kit

  • These kits contain everything you need to complete your piston repair, the first time
  • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power.
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy.
  • All Piston Kits are precision crafted and forged in the USA

Wiseco's Piston Kits are offered for nearly every popular application in the powersports market. These kits contain everything you need to complete your piston repair, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping. 2-stroke kits feature our Pro-Lite pistons that are CNC machined for optimal cam shape and profile for peak HP and service life. 4-stroke kits feature a race-ready dome finish with smooth edges for improved combustion flow. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. 4-stroke race applications feature Wiseco's Armor Glide skirt coating to provide reduced friction and noise to contribute to increased horsepower. Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Super-bike, and more.

Product Line Wiseco Piston Kit
Part Number 804M06850
Fitment Type Model-Size-Specific Fitment
Use Type Aftermarket Performance Replacement
Unit Sale Qty Each
Style Big Bore Piston Kit
Position
Material
Finish Ceramic Composite Bore
Piston/Cylinder Size 68.50mm
Piston Size Added 2.10mm
Cylinder Stroke Volume 72.00mm
Final Engine Displacement 265cc
California Emissions FALSE
Product Disclaimer You MUST measure the size of your cylinder BEFORE ORDERING. Damage/Return of a piston due to ordering the wrong size will not be accepted.
Fitment Note
Fitment Note
Fitment Note
Fitment Note Cylinder sleeving/replating required
Fitment Note Replacement Rings PN 2697CD

2020 Yamaha YZ250
2019 Yamaha YZ250
2018 Yamaha YZ250
2017 Yamaha YZ250
2016 Yamaha YZ250
2015 Yamaha YZ250
2014 Yamaha YZ250
2013 Yamaha YZ250
2012 Yamaha YZ250
2011 Yamaha YZ250
2010 Yamaha YZ250
2009 Yamaha YZ250
2008 Yamaha YZ250
2007 Yamaha YZ250
2006 Yamaha YZ250
2005 Yamaha YZ250
2004 Yamaha YZ250
2003 Yamaha YZ250
2002 Yamaha YZ250
2020 Yamaha YZ250X
2019 Yamaha YZ250X
2018 Yamaha YZ250X
2017 Yamaha YZ250X
2016 Yamaha YZ250X

Wiseco Piston Kit for 1999-26 Yamaha YZ250/X - Bored to 68.50mm - 804M06850 | SVS PowerSports