The excavator pilot block valve assy with part number 723-40-73600 (or 7234073600) operates within the hydraulic control systems of Komatsu machinery. Compatible with PC290LC-11, PC360LC-11, and PC490LC-11 excavator series, this component ensures flow regulation and pressure routing in pilot lines.
Hydraulic System Compatibility
During the replacement process of hydraulic circuit elements, exact matching of part codes is critical for system stability. Prior to installation, the mounting bolt slots, hydraulic line fittings, and sealing surfaces on the old pilot block must be meticulously inspected.
- Axial alignment of mounting bolt holes
- Form of pilot line sockets and fitting threads
- Cleanliness of hydraulic transition channels on the body
After completing hydraulic line pressure tests and performing a leakage check, the machine should be commissioned. You can secure the hydraulic performance of your PC290LC-11, PC360LC-11, and PC490LC-11 series excavator by ordering the 723-40-73600 pilot block component right away.
