Piston Ring 401004-00101 For DX225 Excavator This piston ring is designed for use with the DX225 excavator model.It is engineered to maintain proper compression within the engine cylinder and minimize oil consumption.The ring fits securely into the piston groove and works in conjunction with the cylinder wall to efficient engine performance.It is constructed from materials suitable for heavy-duty in construction and excavation.This part replaces OEM number 401004-00101 and is intended for use in compatible engine rebuilds or maintenance procedures.