Manufactured by OEM style piston kits Includes: 3 pistons, ring sets, wrist pins, circlips Engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls All pistons, rings pins, and circlips are manufactured to OEM specifications All individual components are interchangeable with original parts Piston weight compatible with original piston Pistons are for standard bore size 64.50mm Compatible with Ski-Doo models below: 1995 Formula III 600 1996 Formula III 600 1996 Formula III 600 LT 1997 Formula III 600 1997 Formula III 600 LT 1998 Formula III 600 1998 Formula III 600 LT 1998 Formula III 600 R 1999 Formula III 600