NRE 3GS21C

NRE 3GS21C

Type and origin Power type Diesel-electric Builder National Railway Equipment (NREC) Model 3GS21C Build date 2008 (2008) – Present Total produced 16

Specifications Gauge 4 ft 8 1⁄2 in (1,435 mm) Prime mover Cummins QSK19C (×3) Engine type Diesel engine Aspiration Turbocharger Cylinders 6 (×3)

Performance figures Power output

The NRE 3GS21B is a low-emissions diesel road switcher locomotive built by National Railway Equipment. It is powered by three Cummins QSK19C I6 engines with each one developing and creating a total power output of . At least 16 3GS21C genset locomotives have been produced to date at NREC's Mount Vernon shops in Southern Illinois.

Flexibility

Because the engines are modular, flexibility is obtained:

• If one engine fails, the others can continue at reduced power.
• If a lower axle load is needed, one engine can be left off.
• When reduced power is needed, one or more of the engines can be turned off, saving fuel and wear and tear.
• The QSK19C engine is common to the four variants of the NRE 3GS21C engine.
• The QSK19C engines from Cummins is widely used for non-railway applications, and spare parts are readily available.