Hey guys I scored myself a 1991 300E today for scrap price. Garage kept and Sunday driven.

Body is near mint with a single rust spot on the driver door, interior is spotless, plastics are all great.

...and the owner's kid over-revved it and put a rod through the side of the block. Claim was the transmission failed to complete a shift and it ended up in neutral, but who knows.

So the obvious thing to do is drop a new motor in, probably paired with a transmission if the claim of shift failure is true, and IMO that motor should be an OM602/603. To me it looks like the engine bay would readily accept one - it looks identical to my 300D engine bay without the extra little firewall on the passenger side.

Is this a feasible swap or are there some other motors I should also be looking for? I feel like tracking down an OM602 donor might be tricky in my area.

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1993 300D 2.5L Turbo
1991 300E, looking for diesel to swap in