Does a 123 have this part?
 

I need a vacuum switch....you know one of those rack of switches behind the AC controls that switches vacuum on and off as directed by the AC/Heat system.
Does a 123 model uses these switches also?

I have a friend that has several 123s scrapped in his back yard and hope I can find one of the switches there.
Thanks

The 123's do have these switches in the same location.

Later 123s with a horizontal row of ACC buttons do. Earlier 123s with vertical row of ACC buttons might have something similar but not necessarily interchangeable. 123s (some 230s and 240Ds) with manual AC won't have it.

Sixto
91 300SE
87 300SDL
83 300SD