Versions of fan clutch for E34 M50 usage

[ktteoh]

folks, is there only 1 variety of the fan clutch for M50 engines or is there a couple ie different versions that engages at different temps for different climate situations?

also is sachs and behr of the same quality - which is better?

[Rus]

First and foremost, its very easy to find available parts for your car using www.realoem.com
Here is a link to the fan clutch assembly breakdown: Clicky

There does appear to be a part number for a "tropical version" fan clutch. It is however marked as "ended" which likely means discontinued. Can't comment on the brand quality comparison. HTH

[winfred]

sachs or behr, the behr may be a little better, theres a 3rd brand that i can't remember at the moment that can be id'd by the @ shaped spring on the front of the clutch instead of the flat bi metallic strip on the sachs and behr, they are cheep but can suck, sometimes they lock up and explode the fan but usually they are engaged more of the time so while your car sounds like a ups truck it runs cool

[shogun]

Tropical version is only a bigger fan blade and different pulley, so that it runs faster.
Winfred,
the 3rd brand should be Meyle.
http://www.meyle.com/Search/jpgBig/106067.jpg
Meyle # 314 115 2101

for OEM:
11 52 1 271 416
11 52 1 287 829
11 52 1 289 120
11 52 1 466 000
11 52 1 706 619
11 52 1 719 042
11 52 1 719 266
11 52 1 723 027
11 52 1 723 918
11 52 1 723 919
11 52 1 723 920
11 52 1 723 921
11 52 1 740 962
11 52 9 055 969

5 (E34)
01.1988 - 11.1995
518 i, 520 i, 520 i 24V, 525 i,
525 i 24V
http://www.meyle.com/Home/applicatio...a=14201769649&

fits in various models

[winfred]

same style spring but a different casting of the body (doesn't mean that they haven't changed them since the picture though) i just looked at one to see if it has any markings but they have meen machined off, which is fairly common for some aftermarket parts

Tropical version is only a bigger fan blade and different pulley, so that it runs faster.
Winfred,
the 3rd brand should be Meyle.
http://www.meyle.com/Search/jpgBig/106067.jpg