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MotivePower, Inc.
FoundedNovember 1999; 19 years ago (1999-11) in Boise, Idaho, United States
ParentWabtec Corporation

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


Morrison-Knudsen established a separate rail division, MK Rail, in 1972. Morrison-Knudsen spun-off the division in 1993; it became a publicly traded company in 1994. After Morrison-Knudsen's bankruptcy in 1996, MK Rail renamed itself MotivePower Industries, doing business as Boise Locomotive. The company merged with Westinghouse Air Brake Company in November 1999[1] to form the Wabtec Corporation.[2] Wabtec renamed the Boise Locomotive division to MotivePower in 2000.[3] MotivePower continues as a wholly owned subsidiary of Wabtec.[4]


MotivePower's flagship product is the MPI MPXpress passenger locomotive. Over two hundred locomotives have been built for commuter rail operators in the United States and Canada.


  1. ^ "MotivePower | Wabtec Corporation". Retrieved February 25, 2019.
  2. ^ Carlson, Brad (September 27, 2004). "Locomotive builder MotivePower to boost Boise workforce". Idaho Business Review. Retrieved April 22, 2017.  – via EBSCO's Academic Search Complete (subscription required)
  3. ^ "Names change at Wabtec". Railway Gazette. April 1, 2000.
  4. ^ "MotivePower". Wabtec Corporation. Retrieved April 22, 2017.

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