Piston Kit - Standard - Bombardier/Ski Doo/Moto Ski/Rotax - 600 HO/RER Engine Type High performance, long life, die-cast pistons, Engineered to provide possible path for combustion chamber heat transfer to cylinder walls, All pistons, rings, pins and circlips are manufactured to OEM specifications, All individual components will interchange with parts, PTFE coated to create the least amount of friction during break-in period , All pistons are priced with ring(s), wrist pins and circlips, Chrome plated rings cannot be used in chrome plated or electrofusion liners.