I believe it'll be a new engine. I missed the initial call today and called him back. He stated "the part was in stock and the tech is already working on it." I just listened to the voicemail and in it he said the tech ordered a new engine. I guessing he meant in stock at the warehouse/distributor. I can't imagine a dealership keeping too many entire spare engines on the premises."Parts" = "New/Rebuilt Engine," right?
Of course, I can't imagine there are a lot of rebuilt 2018 2.5L CD engines out there.
Man, this is not a good thing...for you specifically, for 2.5L CD car owners in general, and for Mazda.
The thing is, unless there's something different about these replacement motors (and I doubt that there is), everyone is perpetually at equal risk if suspicions are correct that the S/W fix is not effective.
-Those with unmodified cars are at risk
-Those with the [presumed ineffective] S/W update are at risk
-Those with new engines [and the presumed ineffective S/W update] are at risk