6.7L Cummins Compressed Air System – Air Compressor Coolant Lines – Remove

NOTE: The illustrations show a high mount air compressor. The procedure is the same for low mount air
compressors.
Remove any p-clips and/or mounting fasteners securing the air compressor coolant lines.
Remove the hose clamps securing the air compressor coolant lines.
For the air compressor coolant supply line, disconnect the line from the cylinder block and then from the air
compressor cylinder head.
Remove the air compressor coolant supply line.

For the air compressor coolant return line, disconnect the line from the back of the cylinder head and then from the
air compressor cylinder head.
Remove the air compressor coolant return line.