These are all W126 parts. The parts are used in other chassis as well. The new Behr driers only have 9.5mm threaded holes for the two switches. The older style driers had a 6mm port for the temp switch.

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1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge