| NRE 1GS7B | |
| Powertype: | Diesel-electric |
| Builder: | National Railway Equipment (NREC) |
| Builddate: | September 2008 - Present |
| Buildmodel: | 1GS7B |
| Cylindercount: | 6 |
| Primemover: | Cummins QSK19C |
| Enginetype: | Straight-six engine |
| Aspiration: | Turbocharger |
| Poweroutput: | 700hp |
| Totalproduction: | 7 |
| Operator: | See list |
The NRE 1GS7B is a low-emissions diesel switcher locomotive built by National Railway Equipment. It is powered by a single Cummins QSK19C I6 engine which develops a total power output of 700hp. There have been nine 1GS7B locomotives produced to date, manufactured at NREC's Mount Vernon shops in Southern Illinois, and at NREC's Dixmoor shops.[1] It's also the only current single-engine switcher marketed in NRE's N-ViroMotive catalog.
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| Alliance Grain Terminal[2] | |||
| Wisconsin Public Services | |||
| Total | 7[3] | ||