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GE Dash 8-40B Diesel-Electric Locomotive
The GE Dash 8-40B (or B40-8) is a 4-axle road switcher diesel-electric locomotive built by GE Transportation Systems between 1988 and 1989. It is part of the GE Dash 8 Series of freight locomotives. The Dash 8-40B is a standard version of the series; the Dash 8-40BW is a standard series but with a gull wing instead a standard cab.

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

Railroad: Atchison, Topeka and Santa Fe Railway

Quantity: 40
Road numbers: 7410-7449

Railroad: Conrail

Quantity: 30
Road numbers: 5060-5089

Railroad: General Electric

Quantity: 1
Road number: 8002

Railroad: New York, Susquehanna and Western Railway

Quantity: 24
Road numbers: 4002-4048 (even numbers)

Railroad: St. Louis Southwestern Railway

Quantity: 55
Road numbers: 8040-8094

Railroad: United States Department of Energy (Savannah River Site)

Quantity: 1
Road number: 107

Preservation
In July 2014, Union Pacific No. 1848, formerly St. Louis Southwestern No. 8049, was donated by the Union Pacific Railroad to the Illinois Railway Museum.

GE Dash 8-40B Overview
Type and origin
Power type: Diesel-electric
Builder: GE Transportation Systems
Model: Dash 8-40B
Build date: 1988 – 1989
Total produced: 151
Specifications
Configuration:
​ • AAR B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Prime mover: GE 7FDL16
Performance figures
Power output: 4,000 hp (3,000 kW)
Career
Locale: North America

See also:

GE Transportation

GE Diesel-Electric Locomotives

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.

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.

By Augy8400 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=42111888

UP 1869, a GE Dash 8-40B.

CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=691926

UP 1869, a GE Dash 8-40B.