Air governor (unloads compressor) for trucks with compressed air system such as M35, M54, M809, M939, M1078, etc. Can mount directly to the air compressor (such as on the M35A3 and M1078) or remotely on the fire wall (such as M35A2, M939 etc). Factory preset cut in/out pressures 100/120 PSI but is user adjustable. All ports are 1/8" NPT.
284358 is the High-temp rated version and replaces Bendix D-2 series governors 275491, 275200, 106400, 267100, 267098, 267051, N30259C, N30190DA, and CAT 4P5388.
Includes 6L1883 (102368-CC) gasket and plugs for unused ports.
Installation note: do not cap off exhaust port. This port must be left open.