IHKA control panel fan aftermarket source?

[shogun]

Did someone find a suitable aftermarket replacement fan motor (without the fan blade) for the fan at the back of the IHKA control panel? Officially called INTERIOR TEMPERATURE SENSOR FAN 64118390150 and pretty expensive with $117.73.
http://www.realoem.com/bmw/enUS/showparts?id=GC81-EUR-11-1988-E32-BMW-750iL&diagId=64_1818
pics
http://twrite.org/shogunnew/files/ihka/thermistorfandetail.jpg
https://www.turnermotorsport.com/p-150280-64118390150-genuine-bmw-part/
must fit in here http://i.imgur.com/0RTnQNX.jpg
Pulls the air thru here http://bmwe32.masscom.net/johan/ihka/panel_temp_sensor.jpg
Disassembled http://web.archive.org/web/20010428184335/http://maxf.freeyellow.com/ac_cont/
Have several units in store which make noise. The fans are almost 30 years old and I assume the bearings are at the end of their lifetime. Once I greased a bit, worked for some years. Have one module disassembled, sticker: Bosch 12V 0 130 002 Made in Germany, MR 90.413.01.785, but in the plastic housing of the Motor I can see JOHNSON. Measured as per the instructions on the Mabuchi site: length 32mm, diameter 28mm. The pin where the plastic fan is stuck on has a diameter of 2mm. No RPM indicated. Maybe someone already has replaced the Bosch by a Mabuchi and can tell us the number. I am not in a hurry, have some spare, just checking. The plastic fan is just pressed on, can probably be removed without breaking it, maybe before heating a bit with a hair dryer that the plastic becomes soft. Fan dimensions: 42mm, 9mm
https://www.mabuchi-motor.com/product/knowledge/classification/types.html

[shogun]

Correction, the Bosch number is not complete, the last 3 digits are missing, even cannot read them with a magnifying glass. Bosch 12V 0 130 002 ... If somebody can check on his one the last 3 digits, that would help to find the spec, especially the RPM. Also with the magnifying glass I found out that MR 90.413.01.785 is not correct, it should read BEHR 90.413.01.785

Then I opened up another 3 control panels, these had a different make fan installed: 9140 012 818 FRANCE E32 8 390 150, maker GKR

[shogun]

Correction, the Bosch number is not complete, the last 3 digits are missing, even cannot read them with a magnifying glass. Bosch 12V 0 130 002 ... If somebody can check on his one the last 3 digits, that would help to find the spec, especially the RPM. Also with the magnifying glass I found out that MR 90.413.01.785 is not correct, it should read BEHR 90.413.01.785

Then I opened up another 3 control panels, these had a different make fan installed: 9140 012 818 FRANCE E32 8 390 150, maker GKR

[genphreak]

You will want a very slow motor, I think searching eBay for 2600rpm motor might yield something simolar. I am doing a ecu fan replacement on an e46 with one ATM.

Btw, remember never to grease any sintered bearings, best thing is to clean them only. They absorb Ye oil and et all good naked up, overheat and wear.

[shogun]

Just in case you find a suitable motor, let us know the link or website. Dimensions I posted in my first post, RPM no idea.
I am not in a hurry, have about 5 or 6 IHKA control panels on stock and can use parts from all of them to make some good ones. But would be good if we find out what can be used as motor for those which do not have any spare one.