OM-A10VO18 Variable Piston Pump Doosan DX380 Excavator Cooling Fan Pump 400911-00150 R902531628 Replacement Pump

OEM replacement fan pump for DX380 excavator, model OM-A10VO18/53L-VTE12NOOP-S0481. Variable displacement adjusts flow by water temperature to avoid overheating and slow warm-up. Thick housing withstands site vibration, precise valve plate cuts internal leakage for steady pressure.