The bumper has never been replaced, and I am pretty sure the car is a U. S. model (it has DOT headlights). I think that all W124 bumpers have the Euro cutout.
1976 300D (W115) - 330K and still going (sort of)
1991 300D 2.5 Turbo - Sold at 221K
1983 280SEL - Sold at 206K
1981 300SD - Sold at 232K