No, it doesn't come with any hardware. I did, however, buy the matching wiring harness. I simply had to trim the mounting brackets off with a dremel and took maybe 1/2" off of one edge so that it would fit flush with a Griffin 31 X 19 radiator. As far as mounting brackets, I just bought some nuts, washers, and 4" long bolts that are thin enough to fit between the cores after gently bending the fins aside. I don't have an overflow yet-I just have a hose from the radiator running down to the bottom edge of the radiator. If you pm me your e-mail address I have some excellent pictures that I can't seem to attach here. It's not as bad as you would think, and it cools like a champ in the Tampa summer heat. I love it.
Later-
Hawaii-50