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 73.40mm Fits 1993 Arctic Cat Pantera 550 L/C 1994 Arctic Cat Pantera 550 L/C 2002 Arctic Cat Pantera 550 2003 Arctic Cat Pantera 550 2004 Arctic Cat Pantera 550 2005 Arctic Cat Pantera 550