MPI
The MPI MP40PH-3C is a diesel-electric passenger locomotive in the MPI MPXpress family. The MP40PH-3C introduced a 16-cylinder EMD 710 G3B diesel prime mover rated 4,000 hp. The MP40PH-3C uses an EMD alternator and traction motors.[1]
Plate 01Go Train locomotive engine (MP40PH-3C) - Sheer Power
Plate 02Sounder MP40PH-3C No. 922 Puts on a Magnificent K5LA Horn Show
Plate 03Engines of GO Transit: MP40PH-3C
Plate 04The howl of the GO Transit MPI MP40PH-3C
Plate 05Locomotive MP40PH-3C faster than they look!
Plate 06GO Train MPI MP40PH-3C Locomotive Departing Maple GO Stn
The MP40PH-3C is a diesel-electric passenger locomotive built by MotivePower, a subsidiary of Wabtec. The MP40PH-3C is a model of the MPXpress line of commuter rail locomotives. The locomotive uses a sixteen-cylinder EMD 710 G3B-T2 diesel engine as its prime mover, rated at 4,000 horsepower. The launch customer for the MP40PH-3C was GO Transit, which ordered 27 locomotives delivered between 2007 and 2008. A total of 70 MP40PH-3C units were built. The locomotive has a maximum speed of 93 mph and tractive effort of 85,000 lbf. Dimensions include a length of 68 ft, a width of 10 ft 7.5 in, and a height of 15 ft 6 in.[1]
The MP40PH-3C is used primarily for commuter rail passenger service. The two known operators are GO Transit in the Greater Toronto and Hamilton Area and Sounder Commuter Rail in the Seattle area. The locomotive was designed to meet various EPA emissions tiers; later units were upgraded to Tier 3 compliance.[1]
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| Tier 3-compliant MP40PH-3C | — | 2011 | Upgraded in 2011 to comply with the EPA's Tier 3 emissions standard; three such locomotives were built for Sounder commuter rail, and ten additional locomotives for GO Transit are also Tier 3 compliant. | en.wikipedia.org[1] |
| MP40PH-3C converted to MP54AC | — | 2015 | One GO Transit MP40PH-3C (unit 647) was converted into the first MP54AC prototype by replacing the EMD prime mover and HEP motor with twin Cummins engines. | en.wikipedia.org[1] |
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
No research found yet — worked with this tool? Share what you know.
The MP40PH-3C uses a sixteen-cylinder EMD 710 G3B-T2 diesel engine as its prime mover.[1]
The MP40PH-3C has a power output of 4,000 horsepower.[1]
The MP40PH-3C has a maximum speed of 93 mph.[1]
The MP40PH-3C is operated by GO Transit and Sounder Commuter Rail.[1]
A total of 70 MP40PH-3C units were built.[1]
The first MP40PH-3C locomotives were delivered between 2007 and 2008 to GO Transit.[1]
The following facts about the MP40PH-3C are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
The control-system platform and OS era of the MP40PH-3C are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the MP40PH-3C are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
No publicly documented compatible parts, consumables, or accessories for the MP40PH-3C are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the MP40PH-3C are on record.
Answerable by: university cleanroom staff or an OEM application specialist
The operating principle of the MP40PH-3C is not documented in this record.
Answerable by: an equipment physicist or OEM application engineer
No research found yet — worked with this tool? Share what you know.
Last updated Sep 22, 2026.