Piston assembly set includes a complete piston with ring set for use in specific engine models.The part number 11257576973 proper fitment.Designed for turbocharged engines in applicable vehicle types.Suitable for engine rebuilds and replacements requiring precise internal components.Installation should follow standard mechanical procedures for piston replacement.This is an aftermarket component.References to model numbers are for compatibility purposes only. This replacement part is independently produced.All brand references are for compatibility demonstration only.