replacement regulator valve, part number 103-8177, for CAT excavator and compatible heavy-equipment applications.
- Primary part number: 103-8177
- Alternative part numbers: None listed
- Compatible brands: CAT
- Equipment type: Excavator
- Application reference: Caterpillar Excavator CAT 318C 319C 320C 20D 321C 22C 324D 325C 325D 329D 330C 330D 336D M330D
- Engine models: Verify by part number
- Condition: replacement
Please verify the primary/alternative part number, connector, dimensions, machine model and engine serial number before ordering.





