Campbell Hausfeld TF006900AJ Two Stage Air Compressor Piston Ring Kit

TF006900AJ is Campbell Hausfeld’s OEM piston ring kit designed for two-stage air compressors, providing replacement rings needed to rebuild the pump head and restore compression in the high-pressure cylinder after wear or damage. The kit is described in Campbell Hausfeld replacement parts catalogs as the Complete piston ring kit with part number TF006900AJ, specifically for their two-stage compressor assemblies, ensuring an exact fit for genuine maintenance. Retailers also list TF006900AJ as a component in broader tune-up kits for Campbell Hausfeld models — for example the TF21NCAH rebuild kit intended for TF000021P and 3Z492 pumps includes the TF006900AJ ring kit — underscoring its role in regular service rather than ad hoc repairs. Some product pages and parts compendia note that multiple ring kits may be used during a full rebuild of certain two-stage machines, with references indicating TF006900AJ Ring Kit x 2, which can inform buyers planning a complete head-overhaul.