Main Hydraulic Piston Pump for CAT E365B Excavator 158-9066
Procurement Guidelines
Verify OEM part number to confirm main hydraulic piston pump assembly fits CAT E365B, including pump body, regulator and servo valve components
New or remanufactured pumps must provide hydraulic bench test report for pressure, flow, case drain and internal leakage
For remanufactured pumps, confirm new replacement of pistons, cylinder block, valve plate, slippers, retainer plate, bearings and all seals
Inspect pump housing for cracks and sand holes upon arrival. Keep port threads intact and seal ports to prevent contaminants
Secure pump during transportation to avoid impact damage to input shaft, ports and precision valve parts
Clean hydraulic tank and pipelines before installation, replace all hydraulic filters and bleed air from hydraulic system
Test pump pressure, flow and regulator response after installation. Check for abnormal noise, overheating, oil leakage, engine bogging and weak operation