

Graco 25D164 PTFE Piston Repair Kit is designed for 250cc lower pumps to restore piston sealing, prevent fluid bypass, and maintain reliable high-pressure operation.
The Graco 25D164 Piston Repair Kit is an OEM PTFE replacement kit for 250cc lower pump sections. It restores piston sealing, prevents fluid bypass, and ensures dependable high-pressure performance in industrial spraying applications.
| Install Location | Piston assembly in 250cc 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 |
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