

The Graco 166811 Seat Valve is a precision sealing component designed to restore proper shut-off and prevent internal leakage in Graco spray systems.
The Graco 166811 Seat Valve is a crucial sealing component used inside the valve assembly of various professional Graco spray systems. It ensures tight shut-off, prevents internal fluid leakage, and maintains stable spraying pressure. If the valve seat is worn or damaged, replacing it restores proper pump function and prevents performance loss.
| Part Number | 166811 |
| Component Type | Seat Valve |
| Used In | Valve / Pump Assembly |
| Application | Professional Airless Sprayers & Reactor Systems |