The Graco 166173 Plate, Valve is a genuine OEM replacement used in the intake valve housing to maintain correct fluid direction and pressure. Ideal for restoring performance in Graco ink or fluid supply pumps.
This part is verified in Graco’s parts manual; always cross-check your sprayer/pump’s parts list before ordering.
Graco 166173 Plate, Valve is the valve plate used inside the intake valve housing of select Graco fluid-handling pumps. It provides the sealing surface that helps control fluid direction, restoring flow and preventing back-flow when worn parts are replaced.
| Part Number | 166173 |
|---|---|
| Part Type | Plate, valve (intake valve assembly component) |
| Assembly Location | Intake valve housing (used with valve stop ring p/n 166172 in the same assembly) |
| Typical Symptoms When Worn | Loss of prime, erratic output, back-flow, or leakage at low pressure |
| Fitment Check | Confirm your pump’s parts list specifically calls out p/n 166173 for the intake valve |
