This Parts Catalog covers the Excavator, specifically for serial numbers N5GN01157 and after. The CX50B is engineered for demanding operational environments, offering robust performance and reliability. This catalog provides comprehensive documentation for identifying and ordering parts, ensuring the continued efficient operation of your equipment. This English-language manual is designed to facilitate accurate parts lookup, servicing, rebuilding, and repairs. It features detailed parts explosions, exploded views, and breakdowns of all part numbers, including comprehensive engine and transmission components. The clear, easy-to-read diagrams and assembly guidance assist in understanding how components fit together, supporting accurate part identification and ordering for the entire machine.