NAMURA PISTON KIT NX-70034-B fits 2021,2022 Gas Gas EC300 / 2022 Gas Gas EX300 / 1999-2005 Husqvarna CR250 / 2014-2018 Husqvarna TE300 / 2019-2022 Husqvarna TE300I / 2017-2019 Husqvarna TX300 / 2020-2022 Husqvarna TX300I / 1999-2013 Husqvarna WR250

MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizuresMachined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistonsHypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures