Is the mopar hd all metal or pladtic tanks?
Just about all Factory radiators have plastic tanks.
My 2001's XJ stock radiator lasted ten years before it plugged, it never did leak. My 2003 E450's radiator is stock, has plastic tanks, and is in great shape, still cooling like it was new.
I just sold our 2001 Acura CL, it too had the stock radiator, with plastic tanks.
Plastic tanks have a bad rap. Many of you are too young to remember how common radiator problems where 30 or 40 years ago (and long before that) when radiators were all metal.
The soldered tops blew our often. The only advantage was you could do some of your own repair work, with solder.
Of course, radiator shops were very common so getting them fixed was not a big problem. They went out often due to the poor coolants and all the mis-match dissimilar metals, leading to corrosion.
Glad the chemists and metallurgists figured things out in modern vehicles to reduce the corrosion problems.
The world has changed, again, and so have radiators.