Yup and the factory provided 19, 22 and 26 inch radiators that year. The point is, we cannot guess which size radiator you need. You need to post up the size. Best to take out a tape measure on the one you have and post it.
The tail light lens for the Dodge (Dart) are different from the Plymouth Valiant and Scamp. If you bought tail light lens for a Plymouth you would also need to get the chrome trim from the Plymouth as well. The Plymouth lenses won’t fit behind the Dodge trim and vice versa.