List of low-emissions locomotives
Model designation Wheel arrangement Build year Total produced Power output # of engines Engine type
MP8AC-3 B-B 2012-2013 28 800 horsepower ( 597 kW ) 1 ( plus HEP engine ) Cummins QSK-23 ( I6 )
MP14B B-B 2008-present 7 1,400 horsepower ( 1,040 kW ) 2 Cummins QSK-19C ( I6 )
MP21B B-B 2008-present 1 2,100 horsepower ( 1,570 kW ) 3 Cummins QSK-19C ( I6 )
MP20B B-B 2008-present 21 2,000 horsepower ( 1,490 kW ) 1 MTU-Detroit Diesel 12v4000 ( V12 )
MP20C C-C 2007-present 14 2,000 horsepower ( 1,490 kW ) 1 MTU-Detroit Diesel 12v4000 ( V12 )
MP36PH-3C B-B 2003-present 113 3,600 horsepower ( 2,680 kW ) 1 ( plus HEP engine ) GE ( EMD ) 16-645F3B ( V16 )
MP36PH-3S B-B 2003-present 27 3,600 horsepower ( 2,680 kW ) 1 GE ( EMD ) 16-645F3B ( V16 )
MP40PH-3C B-B 2008-present 70 4,000 horsepower ( 2,980 kW ) 1 ( plus HEP engine ) EMD 16-710G3B-T2 ( V16 )
MP32PH-Q B-B 2014-present 10 3,200 horsepower ( 2,390 kW ) 1 ( plus HEP engine ) GE ( EMD ) 16-645F3B ( V16 )
HSP46 B-B 2013-present 40 4,650 horsepower ( 3,470 kW ) 1 GE GEVO-12 ( V12 )
MotivePower , Inc .
The following is a list of diesel-electric locomotives that meet or exceed EPA Tier 2 locomotive emissions regulations, sorted by builder. Please note that this is a non-exhaustive list of locomotives in the USA only. Furthermore, green/clean energy is an always developing sector and that more locomotives may be added to the list, while some will no longer meet current standards.