Weird part number on OEM M5 bumper?

[joel540i]

I just purchased an OEM M5 bumper to swap out on my 540i. The BMW part number stamped on the inside is 5112494192. This number can't be found in any of the real oem searches?

[joel540i]

Do body part numbers vary with paint code?

[coocoomike]

Do body part numbers vary with paint code?

did you ever figure out what this was? I just bought one, and it has the same part number.