GE Dash 8-40B

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GE Dash 8-40B
Union Pacific Dash 8-40B #1869
Type and origin
Power typeDiesel-electric
BuilderGE Transportation
ModelDash 8-40B
Build date1988 – 1989
Total produced151
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Prime moverGE 7FDL16
Performance figures
Power output4,000 hp (3,000 kW)
OperatorsVarious, see list
LocaleNorth America

The GE Dash 8-40B (or B40-8) is a 4-axle diesel-electric locomotive built by GE Transportation between 1988 and 1989. It is part of the GE Dash 8 Series of freight locomotives.

A total of 151 examples of this locomotive were built for North American railroads.

The GE Dash 8-40BW (B40-8W) is a variant fitted with a full-width cab. Another variant is the GE Dash 8-40BP, more commonly known as the Genesis series. The locomotives in the Genesis series are the P40DC, the P42DC, and the P32AC-DM.

Original owners[edit]

BNSF B40-8 no. 577 at Havelock, Nebraska, in October 2014. As of 2015, this is the only active Dash 8 in ATSF blue and yellow paint on the BNSF system.
Railroad Quantity Road numbers Notes
Atchison, Topeka and Santa Fe Railway 40 7410-7449
Conrail 30 5060-5089
General Electric 1 8002
New York, Susquehanna and Western Railway 24 4002-4048 (even nos.)
St. Louis Southwestern Railway 55 8040-8094
United States Department of Energy (Savannah River Site) 1 107


In July 2014, Union Pacific #1848, formerly St. Louis Southwestern #8049, was donated by the Union Pacific Railroad to the Illinois Railway Museum.[1]

See also[edit]


  1. ^ Schmidt, Brian (2014-07-11). "UP donates B40-8 to Illinois Railway Museum". Trains Magazine. Kalmbach Publishing. Retrieved 2014-07-12.
  • McDonnell, Greg (2008). Locomotives: The Modern Diesel and Electric Reference. Erin, Ontario: Boston Mills Press. ISBN 978-1550464931.
  • Solomon, Brian (2003). GE Locomotives: 110 Years of General Electric Motive Power. St. Paul, MN, USA: MBI Publishing. ISBN 9780760313619.
  • Solomon, Brian (2010). Modern Locomotives: High Horsepower Diesels 1966–2000. New York: Crestline. ISBN 978-0785826811.