GE Dash 8-40C

C40-8
UP 9214, a C40-8, leads an eastbound train up California's Cajon Pass on May 10, 1991.
Type and origin
Power typeDiesel-electric
BuilderGE Transportation Systems
ModelC40-8
Build date19871992
Total produced607
Specifications
Configuration:
  AARC-C
Gauge4 ft 8+12 in (1,435 mm) standard gauge
5 ft 3 in (1,600 mm), Brazil
Length70 ft 8 in (21.54 m)
Width10 ft 3.5 in (3.14 m)
Height15 ft 4.5 in (4.69 m)
Loco weight391,600 lb (177,600 kg)
Fuel capacity5,000 US gal (4,200 imp gal; 19,000 L)
Prime moverGE 7FDL-16
Career
OperatorsVarious
LocaleNorth America, Brazil
Dispositionnearly all have been retired as of 2022

The GE C40-8 is a model of 6-axle diesel-electric locomotive built by GE Transportation Systems between 1987 and 1992. It is part of the GE Dash 8 Series of freight locomotives, and its wheel arrangement is of a C-C type.

This locomotive model is often referred to as a Dash 8-40C or simply "Dash 8". "Dash 8" in general refers to the electrical control series, "Dash" being a carryover from the older syntax of C40-8. The "40" refers to the baseline horsepower rating (4,000 hp or 3,000 kW) of the unit, although some units may be re-rated to 4,100 hp (3,100 kW).

Later units were supplied with a wide-nose cab and are designated Dash 8-40CW, the "W" indicating a wide-nose cab.