Rotorarm from Bosch.
Suitable for:
W107: all 350 +450 motors M116 +M117, 380 M116/ 500 M117 till 1985, 350SL/SLC and 450SL/SLC.
W108
W111
W116: 350-450, 350SE/SEL M116983, 450SE/SEL M117983 and M117986 1973 up to and incluiding 1980.
W126: 380SE/SEC/SEL 500SE/SEC/SEL till 08-1985.