campbell hausfeld VT210400AJ Ring Set 2.3 4 Inch Bore

Campbell Hausfeld VT210400AJ Piston Ring Set is sized for VT-series air compressors with a 2-3/4 inch bore, and it provides the piston rings needed to rebuild both pistons in a VT compressor, restoring compression and proper cylinder sealing after wear. The kit is identified by multiple cross-reference numbers—2Z499, 4B244, 4B245, 4B246, 4B247, and 4KP89—allowing technicians to source compatible replacements across different suppliers while maintaining model fidelity to VT210400AJ. Used specifically for VT compressors, this ring set corresponds to the 2.75 inch bore size and is cataloged in listings as a VT piston ring set for Campbell Hausfeld gear, reflecting its role as a direct replacement component during routine overhaul of VT series equipment.