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Old 08-08-2012, 04:01 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
For cross reference, this was opened today:
- > E39 (1997 - 2003) > Cooling System Refresh - Stewart WP?

Originally Posted by ianbsmith View Post
So the time has finally come to overhaul my cooling system. I just had a question, I was looking into getting the Stewart WP because of the various claimed advantages (SS impeller, good bearings, increased flow). I don't really have a problem with the price but my question is this: the rest of the cooling system will be restored with OEM parts (including behr Rad unless someone can convince me otherwise). Will the Stewart water pump and its increased "flow" make the other parts inclined to fail faster? Or will I be ok with all stock minus the Stewart?
Please read the suggested threads and add value, either by pictures or by descriptions, so the next person stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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