Was introduced with the 164 in 1969. (Will not fit cars with plastic fan, only cars with steel fan).
Early item number, 687132, later changed to 462767.
Also mounted at B20E/F from 1970.

Measures:
Inner diameter = 23,5 mm
C-C 99,5 mm diam holes.
Outer diameter = 122 mm
Inner diameter fan = 86 mm

This part replaces part no 687132 & 462767