I need a center support bearing and decided to do the support at the same time.

The question is: what models cross reference to a 1983 300SD W126 ?

I would think more are alike than not, I expected 380SEL and 560SEL,
hoping that the W123 300D was also the same.

Can anyone confirm ?

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80 300D 340K Owned 30 yrs
83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day
02 Z71 Suburban 117,000
15 Toyota Prius 2600 miles
00 Harley Sportster 24k
09 Yamaha R6
03 Ninja 250