As the 2008-2010 Ford 6.4L Powerstroke enters its second decade of service, wear and tear is certainly a concern for many. Corrosion, heat, and a flexible front end that's notorious for cracking radiators means the cooling system is often the first to require an overhaul on any 6.4L.
When the time comes for a new radiator, many 6.4L owners simply replace it with the same part. But if the radiator failed once, what's stopping it from failing again? Until now, there haven't been many other options for 6.4L replacement radiators. You either pay a lot for an OEM-style replacement radiator or pay a lot more for a performance aluminum radiator. If your stock 6.4L is your daily driver or light-duty work truck, it doesn't make sense to drop in an expensive aluminum radiator that will never really benefit you. So, the OEM-style replacement does the job. At least it tries, until that flexible front end breaks the radiator again, and you end up sinking thousands into the cooling system anyway.