The MPI MP21B is a low-emissions

diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engin ...

switcher locomotive built by

MotivePower MotivePower, Inc. (MPI) is an American manufacturer of diesel-electric locomotives. The company is a wholly-owned subsidiary of Wabtec, and traces its history back to the MK Rail division of Morrison-Knudsen. History Morrison-Knudsen establ ...

. It is powered by three

Cummins Cummins Inc. is an American multinational corporation that designs, manufactures, and distributes engines, filtration, and power generation products. Cummins also services engines and related equipment, including fuel systems, controls, air ...

QSK19C I6 engines with each one developing and creating a total power output of . One MP21B locomotive was manufactured, currently operated by

Amtrak The National Railroad Passenger Corporation, doing business as Amtrak () , is the national passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous U.S. States and nine cities in Canada ...

References

External links

Genset Locomotive Rosters
– Information and resource site for low-emission switcher locomotives built by Motive Power Industries. B-B locomotives MPI locomotives Railway locomotives introduced in 2008 Diesel-electric locomotives of the United States Individual locomotives of the United States EPA Tier 2-compliant locomotives of the United States Amtrak locomotives Standard gauge locomotives of the United States Unique locomotives {{diesel-loco-stub