1. Basic Info
Product Name: Main Hydraulic Piston Pump Assembly
OEM Part Number: 593‑8367, 20R‑9518, 567‑9721, 531‑9886, 5938367, 20R9518, 5679721, 5319886
Applicable Machines: 320GC, 323GC, 320GX, 323GX Medium Excavator
Product Type: Electronic variable‑displacement main hydraulic pump
Condition: High‑quality aftermarket new replacement spare part
2. Core Advantages
3. Technical Data
4. FAQ
Q1: Are these part numbers interchangeable?
A1: 593‑8367, 20R‑9518, 567‑9721 and 531‑9886 are cross‑reference numbers for 320GC / 323GC / 320GX / 323GX, please confirm your old part number before ordering.
Q2: Does this hydraulic pump include solenoid valve?
A2: Solenoid valve is included as the original factory configuration.
Q3: What should be noticed during installation?
A3: Flush hydraulic pipelines thoroughly, replace new hydraulic oil and filter, bleed air, run‑in at low speed before heavy‑load operation.