I'd like to think of it as keeping the atf fluid temp stable instead of fluctuating rather than cooling down![]()
atf can get heated up too, if not why people fit atf cooler.
From the diagram you can see the atf in and out is at the bottom of the radiator, that is the cooler part of the radiator. Hot water from engine come in at the top, and cooled water goes back in from the bottom....
