Sherman M4A2 diesel engine designation

[Hanno Spoelstra]

Originally posted by FV623
Ah, Hanno is the man for this, but as I see it the 6046 was a civvy truck engine and the 6-71 is just a modification of this.

Well, it seems I am no longer needed - Richard N. & Richard F. are perfectly capable of dishing out all the details!
All I can add is a confirmation that the 6046 was the twin power pack version of the 6-71 engine for the M3A3, M3A5 and M4A2 medium tanks and M10 and M36 SP guns. The "power pack" was merely a common base for two engines, which drove a common drive shaft through their own clutch.

H.