Manufactured by
Kit includes piston, rings, pin, clips, wrist pin bearing top end gasket kit (you get exactly what is pictured)
Cast piston has super-high silicone content for additional strength
Piston skirts are Molybdenum Teflon coated to minimize resistance/wear and provide extended life
Piston dome is anodized for superior heat resistance and longer lifespan
gaskets use performance materials to increase durability and provide greater reliability
Includes all gaskets pictured to rebuild top end
Kit is for standard bore size – 66.40mm
Size B piston is 66.36mm
Compression ratio of 10.9:1
Compatible with Yamaha models below:
2002 YZ250
2003 YZ250
2004 YZ250
2005 YZ250
2006 YZ250
2007 YZ250
2008 YZ250
2009 YZ250
2010 YZ250
2011 YZ250
2012 YZ250
2013 YZ250
2014 YZ250
2015 YZ250
2016 YZ250
2016 YZ250X
2017 YZ250
2017 YZ250X
2018 YZ250
2018 YZ250X
2019 YZ250
2019 YZ250X
2020 YZ250
2020 YZ250X
2021 YZ250
2021 YZ250X
2022 YZ250
2022 YZ250X
2023 YZ250
2023 YZ250X