Maybe.
The part numbers are likely different, but as long as the box physically fits, it will work.
For physical fit, the inlet, outlet, drag link and mounting points all need to be the same.

As long as it fits, since w112 boxes are presumably unobtanium, I'd find a way to make it work, and hold on to the original w112 box to see if someone can rebuild it down the road, as the w108 box will likely be leaking. These boxes start leaking around 15-20 years of age, nevermind 40+.

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2021 Charger Scat Pack Widebody "Sinabee"
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1972 280SE 4.5
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