National Railway Equipment Company
National Railway Equipment Company (reporting mark NREX) is an American railroad equipment rebuilding, leasing, and manufacturing company, headquartered in Mt. Vernon, Illinois. NREC sells new and rebuilt locomotives to railroad companies worldwide.

N-ViroMotive Series
NRE's flagship locomotive product is dubbed the N-ViroMotive and is targeted at providing light duty road switcher engines with increased efficiency and decreased air and noise pollution. These locomotives are specifically targeted for yards and other urban environments where noise & exhaust from idling locomotives can become a nuisance. They also fill a market segment for light duty locomotives now largely abandoned by the major builders, GE and Electro-Motive, which have not listed such locomotives in their catalog for nearly 20 years.

N-ViroMotive locomotives are newly built as opposed to a rebuilt with donor parts. They use a low hood design with up to three diesel gensets that supply current to the traction motors. The current gensets use a 700 horsepower (522 kw) Cummins diesel engine and can be easily swapped in and out for repair or overhaul work. The gensets are computer controlled to switch on and off according to the demands of hauling the load. Trucks are of the EMD standard Blomberg B design.

As of 2018, NREC has sold 300 N-ViroMotives to many different railroads, including the U.S. Army, with one of the largest orders (60) being delivered to the Union Pacific who plans to use them in the smog-conscious Los Angeles area.

Model Information

Model designation: 1GS-7B

Build year: 2008–Present
Total produced: 9
AAR wheel arrangement: B-B
Prime mover: Cummins QSK19C
Power output: 700 hp (0.52 MW)

Model designation: 2GS-14B

Build year: 2005–Present
Total produced: 10
AAR wheel arrangement: B-B
Prime mover: Cummins QSK19C (×2)
Power output: 1,400 hp (1.04 MW)

Model designation: 3GS-21B

Build year: 2006–Present
Total produced: 181
AAR wheel arrangement: B-B
Prime mover: Cummins QSK19C (×3)
Power output: 2,100 hp (1.57 MW)

Model designation: 3GS21C

Build year: 2008–Present
Total produced: 27
AAR wheel arrangement: C-C
Prime mover: Cummins QSK19C (×3)
Power output: 2,100 hp (1.57 MW)

Model designation: 2GS36C-DE

Build year: 2011–Present
Total produced: 1
AAR wheel arrangement: C-C
Prime mover: Cummins QSK50L (×2)
Power output: 3,600 hp (2.68 MW)

Export Units

Model designation: E-2300

Destination: Argentina 
Build year: 2008
Total produced: 2
AAR wheel arrangement: Co-Co
Prime mover: EMD 12-645E3B
Power output: 2,300 hp (1.72 MW)

Model designation: E-3000E3B

Destination: Australia
Build year: 2012–Present
Total produced: 12
AAR wheel arrangement: Co-Co
Prime mover: EMD 16-645E3C
Power output: 3,300 hp (2.46 MW)

Model designation: AT36-C

Destination: Australia
Build year: 2005-2010
Total produced: 9
AAR wheel arrangement: Co-Co
Prime mover: EMD 16-645F3B
Power output: 3,800 hp (2.83 MW)
Remarks: Project taken over from Morrison-Knudsen. Manufactured in Australia.

Model designation: 3GS24C-DE-AU

Destination: Australia 
Build year: 2013–Present
Total produced: 2
AAR wheel arrangement: C-C
Prime mover: Cummins QSK19C (×3)
Power output: 2,400 hp (1.79 MW)
Remarks: Demonstrator units owned by NREC.

Model designation: 2GS16B-AU

Destination: Australia 
Build year: mid-2014
Total produced: 7
AAR wheel arrangement: B-B
Prime mover: Cummins QSK19C (×2)
Power output: 1,600 hp (1.19 MW)

Model designation: E-3000C

Destination: Brazil 
Build year: 2007
Total produced: 2
AAR wheel arrangement: Co-Co
Prime mover: EMD 16-645E3C
Power output: 3,300 hp (2.46 MW)

Model designation: E3000C-UN

Destination: Cameroon 
Build year: 2009
Total produced: 2
AAR wheel arrangement: Co-Co
Prime mover: EMD 16-645E3C
Power output: 3,300 hp (2.46 MW)

Model designation: NRE GT26

Destination: Ivory Coast 
Build year: 2015
Total produced: 6
AAR wheel arrangement: Co-Co
Prime mover: n/a
Power output: n/a

National Railway Equipment Company Overview
Type: Private
Industry: Railroad
Founded: 1984
Headquarters: Mt. Vernon, Illinois
Products: Low emission diesel locomotives, Locomotive leasing, maintenance and rebuilding
Official Website: www.nre.com

See also:

Low-Emission Locomotives

Diesel-Electric Locomotives

Locomotive Builders

Locomotives

New NRE 3GS21B locomotives delivered to the U.S. Army.

​By Phil Sussman - http://www.army.mil/-news/2009/01/23/16051-low-emitting-locomotives-replace-old-diesels-on-fort-lewis/, Public Domain, https://commons.wikimedia.org/w/index.php?curid=20469167

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New NRE 3GS21B locomotives delivered to the U.S. Army.