What is this?

[supraman7mgte]

depends on if you want a toasty interior this winter. i'd just grab a nice one from a local wrecking yard or look in the parts section here.

 

[jetjock]

So "assy"must be referring to the valve and vacuum actuator as one unit. Makes sense.

He could just plumb them together but it'll cost him around 10 degrees on max AC.

 

[Jeff Lange]

Yup, Assy is going to refer to the vacuum actuator, valve, and bracket.