Manufactured by SPI Includes 2 pistons, ring sets, wrist pins, circlips as pictured SPI pistons are engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls All SPI pistons, rings, pins, circlips are manufactured to OEM specifications All individual components are interchangeable with original parts Piston weight is compatible with original piston T-Moly series with Teflon-Molybdenum coating T-Moly series pistons reduce friction, resist seizure, improve durability Made in Taiwan Pistons are for standard bore size 71.00mm Fits 2010 Arctic Cat 500 Sno Pro 2011 Arctic Cat 500 Sno Pro 2012 Arctic Cat 500 Sno Pro 2013 Arctic Cat 500 Sno Pro 2014 Arctic Cat 500 Sno Pro