

The Graco 181951 Piston Shaft is an OEM piston shaft that transfers reciprocating motion within the fluid pump for reliable pressure cycles.
The Graco 181951 Piston Shaft is an OEM replacement piston shaft built to transfer reciprocating motion to the pump pistons, ensuring long service life and robust operation in high‑pressure spray applications.
| Feature | Details |
|---|---|
| Part Number | 181951 |
| Type | Piston Shaft |
| Function | Piston motion transfer in pump |
| OEM Part | Yes |