I have a 2001 Mitsubishi Diamante. I would like to know if exterior body parts from a 1998 Diamante ES will fit my 2001 Diamante? Hood, fender, front bumper cover etc.

Hello, my best suggestion would be to check with the parts department of a local Mitsubishi dealership -- they can look up part number application and see what years apply to the same parts. A second thought would be to contact a salvage yard with a similar parts look up, or a body shop.