High-quality aftermarket hydraulic gear pump designed for construction machinery applications. Features aluminum housing, hardened steel gears, and durable oil seals for reliable performance with low leakage and stable pressure. Direct OEM replacement part.
| Item | Specifications |
|---|---|
| Main Part No | 5WHP3/66778BOB |
| Short PN | 5WHP366778BOB |
| OEM Original PN | 6677829 |
| Product Name | Triple Hydraulic Gear Pump |
| Applicable Brand | Bob-cat |
| Fit Models | Bob-cat 320, 322, 323, 320D, 322G Mini Excavator |
| Structure | Three-stage External Meshing Gear Pump |
| Displacement | 11+5+5 cc/rev |
| Rotation Direction | Clockwise |
| Spline Shaft | 11-Tooth Spline Shaft |
| Housing Material | High-strength Die-cast Aluminum Alloy |
| Gear Material | Alloy Steel, Carburizing & Quenching Treated |
| Seal Kit | High Temp FKM Oil Seal |
| Working Pressure | Rated: 16MPa / Max: 21MPa |
| Working Temp | -20℃ ~ +120℃ |
| Condition | Brand New Aftermarket Replacement |
| Warranty | 12 Months |
| Package | Export Standard Carton Packing |
| WHP Aftermarket PN | Bob-cat OEM PN | Compatible Excavator Model | Function Description |
|---|---|---|---|
| 5WHP3/66778BOB | 6677829 | 320, 322, 323, 320D, 322G | Main Working Hydraulic Pump |
| 5WHP3/69649BOB | 6669649 / 6679080 | Bob-cat 325, 328 Mini Excavator | Triple Main Hydraulic Pump |
| 5WHP3/66768BOB | 6676827 | Bob-cat 319, 320 Early Version | Auxiliary Hydraulic Drive Pump |
| 5WHP3/66888BOB | 6688831 | Bob-cat E16, E18 Mini Excavator | Upgrade Replacement Triple Pump |
| 5WHP3/65778BOB | 6577819 | Bob-cat 316, 318 | Small Flow Triple Gear Pump |
If you cannot find the number you need, please contact our sales manager to check and confirm availability!
Thank you for your attention!