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E46 M3 engine belt pulleys

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Haguey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Haguey Quote  Post ReplyReply Direct Link To This Post Topic: E46 M3 engine belt pulleys
    Posted: 23 Feb 2024 at 10:04pm
I need to purchase a new belt tensioner pulley and wondered if anyone knows the actual manufacturer of the OEM pulley.?

Thanks in advance 
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Mike Fishwick View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike Fishwick Quote  Post ReplyReply Direct Link To This Post Posted: 01 Apr 2024 at 2:08pm
Better late than never!

Even my spare OEM tensioner pulley does not have  a maker's name on it - just the part number, 'BMW' and 'Slovakia.'

Why are you set on having a pulley made by an OEM manufacturer anyway?  All you will get is a similar component made by an anonymous manufacturer in eastern Europe!  You may as well go to German & Swedish . . .

In terms of life, my original Z3 aircon tensioner pulley began to get noisy at about 100,000 miles, while the belt tensioner on our Golf TDI remains original at over 240,000 miles and 24 years.  Admittedly, on a realitively low-revving diesel they both enjoyed about the same amount of revolutions.


Edited by Mike Fishwick - 04 Apr 2024 at 12:26pm
A Z3 is not just for Christmas - it's for life!
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DJ Syxx View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DJ Syxx Quote  Post ReplyReply Direct Link To This Post Posted: 04 Apr 2024 at 8:54pm
It is INA who are the supplier for the OEM pulleys.
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