NRE 3GS21C
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| NRE 3GS21C | |||||||||||||
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The NRE 3GS21C is a low-emissions diesel genset locomotive built by National Railway Equipment (NRE). It is powered by three Cummins QSK19C I6 engines with each one developing 700 horsepower (522 kW) and creating a total power output of 2,100 horsepower (1,570 kW). Instead of a single prime mover, the NRE genset locomotive has three engines that each can be turned off or on as power is needed reducing overall diesel emissions and improving fuel efficiency.[1] At least 27[2][3] 3GS21C genset locomotives have been produced to date at NRE's Mount Vernon shops in Southern Illinois.[4] The main difference between this and the NRE 3GS21B is that these units are on C-C (six wheel) trucks and the others are on B-B (four wheel) trucks.
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| BNSF Railway | 16 | 1300-1316[5] | ex-ATSF EMD SD40, SD45 and SD45-2 |
| Dallas, Garland & Northeastern Railroad | 3 | 2000-2002[6] | ex-UP EMD SD24B |
| Norfolk Southern | 1 | 3850[7] | Built in 2008. Ex-Norfolk Southern 3188 EMD SD40[8] |
| Pacific Harbor Line | 2 | 80-81[9] | The first 3GS21C built, in Jan. 2008[10] |
| Indiana Harbor Belt Railroad | 4 | 2160-2163[11] | 2012 |
| CSX Transportation | 1 | 1600[12] | |
| Total | |||