Becker Europa 599, luckily with enough wiring in tact as well as the pita to source plugs. Worked well in my SLC. $150 which will include shipping within 48.

Momo steering wheel hub model 6004. Used for about 1 year (SLC) and thus, is in near perfect shape. $55 which will include shipping within 48.

If you need additional photos, I will gladly email to you.

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Does the hub fit an 89 420SEL. I did some research on the hub model number and I see that it fits the 400SEL and the 560SEL. I assume it will fit the 420SEL no?