In response to requests to post the following parts numbers, they are as
follows:

Thermoswitch....made by "Wahler".  On the part box there is a yellow stick
which reads:  "P.P.I.   321   959   481   085   SWITCH   114   1/22/98
4912.  Then, below the stick is a white area on the box that reads:  "Type
6017   85"  The actual switch , itself, has the name "Wahler" on it and then
the following info stamped into the brass part of the switch:  "12V, 83
degrees -- 93 degrees and the number 9/7".

Thermostat....also made by "Wahler", and it's yellow stick says "P.P.I.  BMW
11   53   1   812040C   Thermostat   113   1/2/97  2785"  And in the white
area on the box the stamped number:   4235.71  D.  Thermostat, itself, has
the numbers "71 degrees" and "96  80".

While it is appears that the thermostat is a BMW part the thermoswitch may
not be.  Maybe someone who is able can double check the part numbers and
tell what kind of vehicle these parts were originally designed for.  I do
not have that capability.

These parts were bought from a California Vanagon High Performance
Rebuilder, who indicated that they recommend to their customers to make this
change.  It was additionally suggested that the thermoswitch and thermostat
be used in conjunction with one another.  Some of these part numbers may be
"inhouse" and, so, you may have to do some cross checking.

Good luck and stay cool!

Dave Gunning

85 Wolfsburg Westy
Kubota 4wd
Limmer Boots