compressor, condensor, fan, ac lines, belt, drier and i think there is a evaporator.. i did this for my teg before it's a lot of fun not too bad of an install. make sure you have the fuse in and everything is connected up and make sure there's no leaks. best way is to find someone with a used a/c system stripped that's what i did and i got my drier at autozone.

evaporators usually aren't taken out it's behind your dash i believe.