The MP20 has a
MTU-
Detroit Diesel 12V4000 engine. It weighs approximately 277,000
lb and is 59 ft 2 in long. It has a maximum speed of . It also includes a B-B wheel arrangement and an optional
dynamic brake. It includes a continuous tractive effort of and a starting tractive effort of .
Union Pacific MP20Bs were powered by a
Caterpillar 3516C. ==Owners==