I'm in the position that I need to replace the blower regulator for my 1992 W124 (no cabin filter).

In looking around at blower regulators it appears (in the pictures at least) that the actual electronic component may be shared by other regulators as well?

I didn't find anything on this in a search.

Anyone know if the actual electronic component from another model works on a W124 (possibly with a swap of connectors)? I have spare heat sinks and a machine shop so could easily modify the mounting if this would work. What I don't have is access to any more recent parts to try to cross check the actual electronic component?

Thanks
Paul