Included is two piston kits pistons, rings, circlips and wrist pins Manufactured by SPI T-Moly series pistons feature silicone aluminum alloy construction with teflon and molybdenum coating and a hard anodized crown Manufactured to OEM Specifications All kits are interchangeable with OEM components Works in both cast and chrome cylinders Pistons are for standard bore size 76.00mm Made in Taiwan Fits 2004 Ski-Doo MXZ 500SS Adrenaline 2004 Ski-Doo MXZ 500SS Trail 2004 Ski-Doo MXZ 500SS Trail R 2005 Ski-Doo MXZ 500SS Adrenaline 2005 Ski-Doo MXZ 500SS Trail 2006 Ski-Doo MXZ 500SS Adrenaline 2006 Ski-Doo MXZ 500SS Trail 2007 Ski-Doo MXZ 500SS Adrenaline 2007 Ski-Doo MXZ 500SS Trail 2008 Ski-Doo MXZ 500SS TNT 2008 Ski-Doo MXZ 500SS Trail 2009 Ski-Doo MXZ 500SS TNT 2009 Ski-Doo MXZ 500SS Trail