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Re: O.E. Superseded Part Number's
Posted to Industry Issues Forum on 8/21/2020 1 Reply

I always thought it was due to a design change. For instance, I recently replaced a turbo diverter valve in a 2006 Audi A4 2.0T. It had a couple of part number changes, indicated by a change of the ending letter. Researching it indicated improved design change... Login to read more.

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