V8 water pumps - plastic or steel?

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hsg@h-gee.co.uk - 22 Oct 2006 11:52 GMT

I have just been asked this question but the parts lists don't list the
differences just different part numbers so there is a difference but what is it?

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I've just learned from Don with the e39 group that between and
including '97 - '99 the water pumps on the 6's had metal impellers.
After that they were/are "improved" plastic.

Does anyone know if these metal impeller water pumps are also on the
v-8's?

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Sir Hugh of Bognor

The difference between men and boys is the price of their toys.

Intelligence is not knowing the answer but knowing where and how to find it!

Hugh Gundersen
hsg@h-gee.co.uk
Bognor Regis, W.Sussex, England, UK

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John Burns - 22 Oct 2006 16:11 GMT

"Early" V8s are plastic, later ones are metal.

> I have just been asked this question but the parts lists don't list the
> differences just different part numbers so there is a difference but what is it?
[quoted text clipped - 7 lines]
> Does anyone know if these metal impeller water pumps are also on the
> v-8's?

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Jeff Strickland - 22 Oct 2006 20:41 GMT

If I had a choice, I'd get the metal type.

> I have just been asked this question but the parts lists don't list the
> differences just different part numbers so there is a difference but what
[quoted text clipped - 21 lines]
> hsg@h-gee.co.uk
> Bognor Regis, W.Sussex, England, UK

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Kyle and Lori Greene - 23 Oct 2006 16:35 GMT

> I have just been asked this question but the parts lists don't list the
> differences just different part numbers so there is a difference but what
[quoted text clipped - 8 lines]
> Does anyone know if these metal impeller water pumps are also on the
> v-8's?

About 2 years ago the water pump on my 98 740iL went bad. I don't know if
it was the original or not, but what was in there was metal. I replaced it
with another metal one from www.bavauto.com . However, it only lasted about
1.5 years. Needing it right away, I went to the BMW dealer near me and was
given a plastic one. Apparently that's how they make the new ones.

Kyle.
98 740iL
01 525i

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