I just bought a URO part and regret it. I also had to drill and enlarge one of the holes to accommodate the bolt, because it was too small. I'm not done with the installion yet, but mine did line up correctly with the smog pump. I'm waiting shipment of the pulley and the fan clutch, I hope they line up, as these are genuine parts. URO also makes the fan clutch but I didn't want to gamble with the cooling system. If I have any problems, I'm returning the fan bracket and getting a mercedes genuine part. Mercedes doesn't make new ones anymore, they only reburbish them.

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1989 Mercedes 300SE
1992 Mercedes 190E 2.3
1992 Mercedes 300E (3.0)