Graco 25D192 PTFE/PE Piston Repair Kit

Graco 25D192 PTFE/PE Piston Repair Kit Details

Compatible Machines

This piston repair kit is designed for Graco lower pumps with the 250-size piston packing configuration.

• Graco Xtreme™ Lower Pumps – 250cc class
• Graco XP Proportioner Systems with 250cc fluid sections
• Industrial Graco airless sprayer systems using compatible 250-size lowers

Key Product Information

Product Description

The Graco 25D192 Kit, Repair, Piston, PTFE/PE (250) is an OEM piston seal kit used to rebuild 250-size piston assemblies in Graco lower pumps. PTFE and UHMWPE packings offer high chemical resistance, long service life, and consistent sealing performance in demanding spray applications.

Using this kit ensures proper sealing, reduces internal leakage, and maintains stable spray pressure. Always confirm your pump lower size and model before installation to guarantee correct fit.

Maintenance Recommendations

• Replace during scheduled lower pump rebuilds
• Inspect piston rod and cylinder for wear before installing new packings
• Lubricate packings as recommended in the pump service manual
• Use only the 250-size kit for proper sealing and performance

Frequently Asked Questions