Pistons and Cylinder Liner which function as cylindrical part that is fitted into engine block so as to form a cylinder and is one of the important and functional part that makes the inside of an engine. The Liner is designed to provide functions including formation of sliding surface where these serving as inner wall of cylinder assist in forming sliding surface for piston rings while retaining lubricant within. The Liner works as heat transfer agents where the combustion heat received through piston and piston rings is transmitted to the coolant. The Pistons and Cylinder Liner is offered in silver colour.