Harrison Radiator Corporation was an early manufacturer of automotive radiators and heat exchangers for crewed spacecraft and guided missiles, as well as various cooling equipment for automotive, marine, industrial, nuclear, and aerospace applications,[1] (particularly for space suits of the first two U.S. human space flights)[2] that became a division of General Motors in 1918. Today its business is a part of General Motors' Automotive Components Group, and is based in Lockport, Niagara County, New York.