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 73.80mm Fits 2002 Arctic Cat Z570 2002 Arctic Cat Z570 ESR 2002 Arctic Cat Z570 SS 2003 Arctic Cat Z570 2003 Arctic Cat Z570 ESR 2004 Arctic Cat Z570 2004 Arctic Cat Z570 LX 2005 Arctic Cat Z570 2005 Arctic Cat Z570 LX 2006 Arctic Cat Z570 2006 Arctic Cat Z570 LX 2007 Arctic Cat Z570 2007 Arctic Cat Z570 LX