W116 speedometer -- original?

[p. rex]

Hi all,

I am looking at a late-production 6.9, made in the last few months of 1979. It has a 170-mph speedometer with an R107 number on the dial. I understand that these parts interchange, so this could possibly be a sign of odometer fraud, either by the seller or one of his predecessors. However, the seller hasn't given me reason to question his honesty so far, and it's a very well-documented car, at least over the long span of his ownership. Is it possible that the factory substituted an R107 dial in the last months of production?

[Adv_rider]

Hi. I have a 116, but can't answer your question.

There is lots of info on 116s here: W116 : Mercedes-Benz S-Class - 280S, 280SE, 280SEL, 300SD, 350SE, 350SEL, 450SE, 450SEL & 450SEL 6.9

and the forum https://forum.w116.org/index.php

[Larry Delor]

What is the part number on the speedo?