Parts Interchange

My daughters 1982 D150 battery flipped over and shorted out on the dipstick tube burning it in half! Are all slant six tubes the same? Also the factory positive battery cable has a white plastic connector on a smaller wire and at the starter end it has a black connector on the starter. Is this the same in other models/years? I would like to find factory stuff to replace the damaged parts with and wasn't sure if all the slants used the same parts in different models or is it truck specific.