Cumminsยฎ engines are equipped with a variety of air compressors, including a two cylinder version. This
procedure will cover the removal, cleaning, inspection, and installation of WabcoTM and Knorr-BremseTM brands of air compressor.
To determine what brand air compressor a specific engine has, look on the air compressor data plate, usually located
on the side of the air compressor.
The air compressor can be mounted in one of two configurations, depending on the application; they are a
high mount and low mount location on the rear gear housing.
In general, the removal and installation procedures for high mount and low mount air compressors are the same.
The air compressor also has mounting provisions for driving an accessory drive, such as a power steering/
hydraulic pump.
