Abstract: A modular dynamometer can assembly defining an interior region sized to house and support a dynamometer. The can assembly is formed from two modules: a main can form module and a separate and discrete motor end module. The main can form module is adapted for prefabrication at a first location and transportation in a disassembled state to a second installation location. Similarly, the motor end module is adapted for prefabrication at the first location and transportation in a disassembled state to the second installation location. The main can form module and the motor end module are assembled and engaged, forming the modular dynamometer can, at the second installation location.