

The Graco 181603 Seat is a precision OEM valve seat that seals check valves in airless pump assemblies to maintain proper fluid flow.
The Graco 181603 Seat provides a precise sealing surface for check valves within compatible Graco pump assemblies.
This valve seat creates a tight, leak‑resistant contact surface for mating check valve components, helping maintain consistent fluid flow direction.
Made to OEM specifications, it ensures accurate sealing and reliable performance in high‑pressure environments.