Engine Unit Number Does Not Match

Short answer: A one-digit difference like 205848 vs. 205818 is almost certainly the same number — a weak or partial stamping, not a wrong engine. The Engine Unit Number and partial VIN were hand-stamped (shallower than the code stamp), and the gang-stamp tool could slip during the strike, leaving a “4” looking like a “1.” Given how close they are, it’s the original engine — nothing to lose sleep over.

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