The MPI MP20C is a switcher diesel locomotive designed and built by MotivePower in Boise, Idaho. Specifications It has a MTU-Detroit Diesel 12V4000 engine. It weighs approximately 390,000 lb and is long. It has a maximum speed of . It also includes a C-C wheel arrangement and an optional dynamic brake. It includes a continuous tractive effort of and a starting tractive effort of . It is built on an EMD GP40 frame. Owners References C-C locomotives Diesel-electric locomotives of the United States EPA Tier 2-compliant locomotives of the United States MPI locomotives Railway locomotives introduced in 2007 Standard gauge locomotives of the United States