6682021019S1 - Deflection/guide pulley OE number by MERCEDES-BENZ

MERCEDES-BENZ :   668 202 10 19 S1
  OE Number - stands for Original Equipment Number - the number of complete component or sub-assembly that was originally fitted to the vehicle. OE Number is interchangeable with the term Genuine Number

Replacement parts compatible with OE numbers

We can deliver replacement part to your door in United States on 22 November