Servo Cylinder Diaphragm 36437-01500 for Airman Air Compressor PDS185S-6B4 PDS265S-4B2

My compressor was cycling the throttle constantly. This diaphragm did the trick...runs so smooth again. When installing, be mindful of the lip on the bottom of the diaphragm. Mine came inside out so I had to invert it before installing. Also be careful it folds correctly as you insert it into the body of the speed regulator. I put the piston rod in a vise to pull it carefully into position and installed the four bolts.