To maintain hydraulic system performance and ensure a precise fit during main pump overhauls, the part referenced as 708-2G-13370 is preferred. The 708-2G-13370 (7082G13370) Komatsu Hydraulic Pump Piston Piston Subassembly component is a critical sub-group that directly supports the internal pressure balance and flow efficiency of heavy machinery hydraulic pumps. Geometric dimensions and surface tolerances of this component are of great importance during the revision processes of main hydraulic pumps used in PC300-7E0, PC350-E0, WA470-6, WA480-6, WA600-6, and PW180-10 series machines.
Compatibility and Installation Considerations
During the replacement of pump elements, hydraulic oil cleanliness, smoothness of block flange surfaces, and the wear condition of piston bores must be meticulously examined. Incorrect oil viscosity or metal particles remaining in the system can directly shorten the operating life of the newly installed piston group; therefore, it is recommended to flush all lines and replace the filters prior to installation.
To ensure certainty regarding which machine series and pump block it is compatible with, you can check the label data and part number on your existing hydraulic pump.
