Amtrak No. 592, one of 7 units produced, shown here at the 14th Street Coach Yard in October 2018.

(Charles Fulton, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons)

MPI MPEX SWITCHER MP14B

The MPI MP14B is a low-emissions diesel switcher locomotive built by MotivePower. It is powered by two Cummins QSK19C I6 engines with each one developing 700 horsepower (522 kW) and creating a total power output of 1,400 horsepower (1,040 kW).

The MPI MP14B is nearly identical to the MPI MP21B except that it has one fewer engine.