Graco 504817 Seal O-Ring Foot Valve

Seal O-Ring for Foot Valve – Product Overview

The Graco 504817 Seal O-Ring Foot Valve is a genuine replacement sealing component designed for use inside Graco foot (intake) valve assemblies. This seal plays a critical role in maintaining proper pump prime by preventing material from flowing backward through the intake valve during operation.

Installed at the fluid intake section of the pump, this O-ring helps ensure consistent suction, smooth material flow, and reliable pump performance. Worn or damaged foot valve seals can cause pressure loss, poor priming, and uneven spraying, making timely replacement essential.

Compatible Machines

• Graco airless paint sprayers with serviceable foot valve assemblies
• Graco fluid transfer pumps using sealed intake (foot) valves
• Graco industrial spray systems equipped with foot valve seal kits
• Graco cart-mounted and stationary pumping units with matching valve design

Compatibility depends on the specific foot valve assembly used in your machine. Always confirm part numbers against your equipment’s parts manual before ordering.

Key Features

Why Replace the Foot Valve O-Ring?

• Helps restore proper suction and fluid flow
• Reduces pressure drop and priming issues
• Supports consistent spray performance
• Protects internal pump components from wear

Frequently Asked Questions