After spending the better part of the weekend pulling the water pump of of the 95 E320 and putting the new one on I discovered that the replacement has an extra port in the back. I bought a Graf pump for which I gave the parts guy my engine number so I don't understand how it happened... and how I didn't notice the port. I did notice the extra o-ring in the box but thought nothing of it.

The port in the backhas a recess for an o-ring and two bolt holes tapped. I wonder if anyone makes a blocking plate for this situation. I would much rather put on a blocking plate than mount this one and wait for the parts supplier to get one without the extra port.

Has anyone else run in to this problem? I'd be interested in the remedy.

Thanks!

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Tim Benner

00 ML320 170K
95 E320 wgn 160K