With a profile unlike any dozer currently on the market ... so it can operate in all the same conditions that the D7R can, even partially submerged in water up to the fan blades,?

Aka, the dozer formerly known as the Cat D6K2 ... and the D7 replaced the D7E and D7R. So, yes. The much-loved model at the heart of this discussion has a new name and there are lots of folks ...