Old Part Numbers: 9048025, 90480733-way check valve for air compressors.  If the small unloader (bleeder) valve on or under your switch leaks constantly AFTER the unit shuts off, replace this part. The check valve is a one-way valve that prevents...

Old Part Numbers: AB-9411032, AB-9433001Poor performance or air leaks out of the intake filter while the unit is running? The valve plate assembly is probably the problem.

Old Part Numbers: 5130055-00If your pressure switch is leaking out of the small bleeder valve on the side or if located underneath, order a tank check valve instead, your pressure switch is ok.