Campbell Hausfeld VT210401AJ Piston Ring Service Kit is a two-style piston ring set for VT-series air compressor pumps, designed to replace worn rings with components that match the originals; compression rings are marked to indicate the correct top surface for proper seating. The kit is intended for VT pumps with a 2-3/4 inch bore, ensuring compatibility with common VT models. Use this service kit during maintenance or rebuilds of Campbell Hausfeld VT pumps to restore piston-ring seal and overall pump performance.
