In the second half of the 1960s was a need for a locomotive able to replace high-power steam locomotives of predominantly pre-war provenance in Czechoslovakia. The new locomotive's design is based on the arrangement of locomotive Class 751, it is of cab unit type construction with newly shaped end cabs. A fundamental change was the diesel motor. After long and difficult development, the 753 class locomotive was given a diesel engine with 1325 kW. Power was transfered by traction motors, and it was equiped with a steam generator, intended for wagon heating.
