Graco 51A025 Packing O-Ring

Packing O-Ring Seal for Graco Fluid Systems

The Graco 51A025 Packing O-Ring is a genuine replacement sealing component used in Graco fluid-handling equipment. It is designed to maintain pressure integrity and prevent fluid leakage within pump and valve assemblies where precise sealing is critical.

Product Overview

• OEM-quality packing O-ring manufactured to Graco specifications
• Helps maintain consistent pressure during operation
• Reduces fluid bypass and internal leakage
• Ideal for routine maintenance and rebuilds
• Designed for long service life under demanding conditions

Compatible Machines

Graco does not publish a universal public fitment list for this part number. The Graco 51A025 Packing O-Ring is used in select Graco airless sprayers, pumps, and fluid control assemblies, depending on model configuration and serial range.

To confirm compatibility, always verify the part number against your machine’s official Graco parts diagram or service manual. Using the correct packing O-ring ensures proper sealing and prevents premature wear.

Why Replace the Packing O-Ring?

• Prevents pressure loss caused by worn seals
• Heliminates fluid seepage around moving components
• Restores smooth and efficient pump operation
• Protects internal components from excess wear

Frequently Asked Questions