Old Part Numbers: L9If loose or dirty, replace these when rebuilding pump.

Old Part Numbers: K52-1

Old Part Numbers: 120-1170If your unloader valve leaks or does not unload the pump to start, try replacing this assembly. Located on the end of your air compressor pump with a supply line that runs to the head.

Old Part Numbers: K32 Piston and bumpers (no rings).

Old Part Numbers: EQ70

CONTROL,COPPER,W/SLEEVE,1/4"X22"LG