

Graco 25D163 PTFE Piston Repair Kit is built for 220cc lower pumps to restore piston sealing, prevent fluid bypass, and maintain smooth, high-pressure operation.
The Graco 25D163 Piston Repair Kit is an OEM PTFE replacement kit designed for 220cc lower pump sections. It restores piston sealing, prevents fluid bypass, and ensures reliable high-pressure performance for professional spray applications.
| Install Location | Piston assembly in 220cc lower section |
|---|---|
| Used During | Lower pump rebuild or piston seal replacement |
| Corrects | Piston leakage and fluid bypass |
| Recommended Timing | During preventive maintenance or when leakage occurs |