09-29-2016, 12:41 PM
That is solenoid valve. The Height Control Valves (total of 3) are located over the drive axle on each side just inside of the tires and in the center of the coach over the front axle. Below is a ride height control valve from Chester's 2001.
Here is a photo of an early height control valve (1991)
Here is a photo of an early height control valve (1991)