GE Dash 8-40CM

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GE C40-8M
CN 2442, a Dash 8-40CM, leads a train eastbound into Battle Creek, Michigan in 2009.
Type and origin Power type Diesel-electric Builder GE Transportation Systems Model C40-8M Build date March 1990 – March 1994
Specifications Configuration: ​  • AAR C-C Gauge 4 ft 8+1⁄2 in (1,435 mm)
Career Operators See table Locale North America, Canada Disposition Most retired, QNSL units scrapped, 1 preserved

The GE C40-8M is a 6-axle diesel locomotive built by GE Transportation Systems from 1990 to 1994. It is part of the GE Dash 8 Series of freight locomotives, and is often referred to as a Dash 8-40CM.

Mechanically identical to the Dash 8-40CW, the Dash 8-40CM was constructed only for Canadian railways, with a production total of 84 units. It is distinguished from the Dash 8-40CW by the addition of a full-width "Draper Taper" style cowl body, of which they are the last locomotives built with this feature, and the use of a Canadian-specific nose and windshield configuration. The trucks also differ; all units built ride on Dofasco Hi-Ad trucks identical to locomotives built by Montreal Locomotive Works, Bombardier, and Morrison-Knudsen.