Campbell Hausfeld VT491100AV Valve Plate Kit For 4YN51, VT4800, VT4900

The VT491100AV Valve Plate Kit from Campbell Hausfeld is a direct replacement valve plate assembly for Campbell Hausfeld VT4800 and VT4900 air compressors, including the 4YN51 pump, enabling you to restore compressor performance by replacing worn valve components in the pump head. The kit centers on the VT491100AV valve plate assembly, a critical component that governs the flow of intake and exhaust gases during each compression cycle and helps reestablish proper sealing and efficiency in the pumping action. This replacement part is cataloged across multiple sources as the valve plate assembly for the VT4700/VT4800/VT4900 family, and Campbell Hausfeld's literature also references VT491100AV within the valve plate assembly context. Related replacement parts catalogs frequently list a gasket kit (VT490900AV) in the same family, underscoring the typical maintenance pathway for these models. Verified retailer listings, including Grainger, identify VT491100AV as a Campbell Hausfeld Valve Plate Kit, and official Campbell Hausfeld manuals confirm the VT491100AV designation for the valve plate assembly used on VT4800/VT4900-series machines, aligning with the 4YN51 pump designation for compatibility. When replacing, ensure your unit’s pump model and serial details match the VT4800/VT4900 line and the 4YN51 designation to confirm fit.