Valve Plate Assembly (part numbers 18188 and 20443) for the RIDGID OL90150 pump, used in RIDGID GP90150A wheelbarrow air compressors.
As the valve plate in the electric compressor pump, it coordinates intake and exhaust during compression and seals against the cylinder to ensure proper airflow through the piston and ring assembly.
The RIDGID parts catalogs and operator manuals reference 18188 as the Valve Plate and list 20443 as the corresponding pump assembly for OL90150, confirming its role within the GP90150A family of machines.
