Mercedes-Benz part number A000 906 09 03 () is a 250A alternator (three-phase generator).
It is used mainly on Mercedes-Benz diesel models with higher electrical demand, including:
Mercedes-Benz E-Class W213
Mercedes-Benz GLE-Class W166
Mercedes-Benz GLS-Class X166
Mercedes-Benz ML-Class W166
Mercedes-Benz GLE Coupe C292