Ah ok I see what you mean, they are being tricky in their language use.
My suspicion is that it's going to be very hard to answer that question definitively until we can get to the point of actually being able to compare part numbers, and that's going to be awhile. My (sort of) educated guess is that the FX4 will get the same radiator that the 2.0l FWD gets. We do know from the prelim. 2022 Towing Guide that 4K towing gets you a bonafide transmission oil cooler (like the 2021 Escape with 2.0l or high trim Hybrid gets - and the Escape is the only
2021 Ford vehicle that you can get with a factory aux. trans cooler), "higher capacity" radiator (probably higher than whatever the Hybrid and 2.0l FWD comes with), and "upgraded" cooling fan (probably unlike what you get with Hybrid and 2.0l FWD).
Ford does make it very confusing. When you look from one year to the next you can find lots of changes. Go here (2021 Ford RV & Trailer Towing Guide
) and see what the TOWING EQUIPMENT & TRAILER TOWING PACKAGES chart says. For 2021 no mention at all of any vehicle with an "upgraded" cooling fan, and only vehicle with "upgraded" radiator is the Expedition.
Then go here (Ford_Linc_18RVTTowGuide.pdf
) to the same chart and see how different it is regards what gets "upgraded" radiators and fans and what doesn't. Lots of footnotes.
If Ford ends up considering the Maverick as a "truck" for documentation purposes (which I doubt), later on you might be able to go here (Publications | Body Builder Advisory Service (fordbbas.com)
), Vehicle Specifications, and find the 2022 Maverick. Then you might see actual radiator specs like they do for their other trucks.