Graco 25D190 PTFE/PE Piston Repair Kit

Graco 25D190 PTFE/PE Piston Repair Kit Overview

Compatible Machines

This piston repair kit is designed for Graco lower pumps with the 180-size piston packing configuration.

• Graco Xtreme™ Lower Pumps – 180cc class
• Graco XP Proportioner Systems with 180cc fluid sections
• Industrial Graco airless sprayer systems using compatible 180-size lowers

Key Product Information

Product Description

The Graco 25D190 Kit, Repair, Piston, PTFE/PE (180) is an OEM piston seal kit used to rebuild 180-size piston assemblies in Graco lower pumps. It contains PTFE and UHMWPE packings engineered for chemical resistance, low friction, and long service life.

Installing this kit ensures proper sealing, reduces internal leakage, and maintains consistent spray pressure. Always verify your pump lower size and model before installation to ensure correct fitment.

Maintenance Recommendations

• Replace during scheduled pump rebuilds
• Inspect piston rod and cylinder for wear prior to installing packings
• Lubricate new packings as recommended in the service manual
• Use only the 180-size kit for this pump class to maintain sealing efficiency

Frequently Asked Questions