Manufactured by SPI Includes 3 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 72.00mm Fits 1994 Polaris 800 Storm 1994 Polaris 800 Storm SKS 1995 Polaris 800 Storm 1995 Polaris 800 Storm SKS 1995 Polaris 800 Storm SKS PDL TRK 1996 Polaris 800 Storm 1996 Polaris 800 Storm SKS 1996 Polaris 800 Storm RMK 1997 Polaris 800 Storm 1997 Polaris 800 Storm RMK 1997 Polaris 800 Storm SE 1998 Polaris 800 Storm