1994 E500 should use part number
124-440-20-06 which, unfortunately, is now NLA (
link).
However, the 1992 500E harness is functionally identical and should work fine - part number
124-543-95-26. Currently $404 plus S&H from MB of Laredo:
Factory Direct Line, Cabel Harness (1245439526) For Your
www.mbpartsource.com
M119's in the 140 and 129 chassis use different harnesses, also the 400E/E420 uses a different harness.
View attachment 192800