air ride height control valve

I have a 2007 Coachmen Cross Country 389DS. My issue is I have an air ride control valve going bad. I say valve, but it is actually the piece that screws into the actual valve. It has two lines going into it and then it goes into the actual valve assembly. The air ride will not air up on the rear. This piece has two small holes in it coved by a rubber casing around it. I can feel the air being blown out of it. If I pull the rubber casing back and put my fingers over the holes the air ride inflates and stays up like normal. I am trying to figure out what this piece is called. I have found new valves that look just like mine but none of them have this piece with them. Have any of you had these issues before? and if so what did you do to fix it? or does anyone know what this part is called?