quick one - alternator number...

[Roadhouse]

Hi all,

Looking at a rebuilt or replacement alternator for my ride - 2004 4.8is.

My long running saga re electrical issues may hopefully be put to bed after the stealer diagnosed a crook alternator (at $1600!).

Anyway, my trusted local auto-electrician reckons they can't get parts for the alternator so I need a replacement.

Ignoring for now the fact they I reckon they should be able to get parts, I quoted the part number 12317540994, which is off the Real OEM website. Old Dear on the other end of the line reckons she needs a 12 digit number and that that one is only the BMW part number which doesn't help her find me parts and/or a replacement alternator... She reckons there is a 12 digit number on the alternator itself...

Does anyone have a 12 digit number for the alternator that corresponds to the aformentioned Real OEM part number, or is she off with the fairies?

thanks