Product Overview This is a variable displacement axial piston hydraulic pump designed for the CAT E120B and E110B excavators, model VRD63. It delivers hydraulic power to the digging, boom, arm, bucket, swing, and travel hydraulic circuits, ensuring reliable performance across demanding job site conditions. Part Numbers 120-8016, 099-0246, 085-5799 Interchange Part Numbers 71-9085, 128-1347 Pump Model VRD63 Machine Compatibility CAT E120B / E110B Excavator Important: Please