For changing this part in Explorer buy only factory size: 527 mm of height, 606 mm of width and 52 mm of depth. There is a certain coolant temperature for 2002 cars having 4.0 motor inside. In every Ford Explorer it’s important to ensure normal radiator work. It’s impossible to install in Ford Explorer 4.0 radiator with different dimensions.
Make sure you have Ford cooling system investigated, for 1997 cars it’s vital. So, by replacing the radiator in 1999 Ford Explorer don’t miss the numbers: 527 mmX606 mmX52 mm (for height, width, depth).