replacement oil pump, part number 178-6539, for CAT excavator and compatible heavy-equipment applications.
- Primary part number: 178-6539
- Alternative part numbers: None listed
- Compatible brands: CAT
- Equipment type: Excavator
- Application reference: Caterpillar CAT Engine 3066 Excavator 318C 319C 320C
- Engine models: 3066
- Condition: replacement
Please verify the primary/alternative part number, connector, dimensions, machine model and engine serial number before ordering.





