The EMD GP38 ^[1] is a four-axle diesel-electric locomotive built by General Motors Electro-Motive Division between January 1966 and December 1971. The locomotive's prime mover was an EMD 645 16-cylinder engine that generated 2,000 horsepower (1.49 MW). The company built 706 GP38s for North American railroads.^[2]

This article includes a list of general references, but it lacks sufficient corresponding inline citations. (August 2016)

Quick Facts Type and origin, Power type ...

EMD GP38
EMD GP38 of the Gateway Western Railway
Type and origin Power type Diesel-electric Builder General Motors Electro-Motive Division (GM-EMD) General Motors Diesel (GMD) Model GP38 Build date January 1966 – December 1971 Total produced 706
Specifications Configuration: ​  • AAR B-B  • UIC Bo'Bo' Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Fuel capacity 2,600 US gal (9,800 L; 2,200 imp gal) Prime mover EMD 16-645E Engine type V16 Two-stroke diesel Aspiration Roots type supercharger Cylinders 16
Performance figures Power output 2,000 hp (1.49 MW)
Career Locale North America

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In 1972, EMD began making an updated model, the GP38-2, as part of its Dash-2 line.^[3]

A number of GP38s have been rebuilt into the equivalent of a GP38-2.

Conversely, a number of higher horsepower 40 Series locomotives have been rebuilt into the equivalent of a GP38-2 (GP38AC), by the removal of the turbocharger and the substitution of twin Roots blowers.

In 2007, Norfolk Southern rebuilt #2911 which is an ex Penn Central GP38 into an experimental zero-emissions Battery-Electric locomotive known as the Altoona Works BP4. The new locomotive was renumbered as NS #999.^[5] It has since been sold to Rail Propulsions Systems, where it was upgraded for eventual use in the Los Angeles Basin region. ^{[6] [7]}

• Conway Scenic Railroad 252, built as Maine Central (MEC) 252, is preserved and operates on excursions on the former MEC Notch Route.^[8]
• Conway Scenic Railroad 255, built as Maine Central 255, was acquired in October 2021 and serves alongside 252.^[8]
• Tennessee, Alabama and Georgia Railway 80, is preserved in operational condition at the Tennessee Valley Railroad Museum.^[9][10]
• West Chester Railroad 7706, built as Penn Central 7706, is preserved and operates on tourist trains on the former PRR line.^[11][12][13]
• Chessie System 3802, built as Baltimore & Ohio 3802, is preserved and operates at the Baltimore & Ohio Railroad Museum in Baltimore, Maryland.^[14]
• Pennsylvania-Reading Seashore Lines 2000, is preserved on the Cape May Seashore Lines in Tuckahoe, New Jersey.^[15][16]

• List of GM-EMD locomotives
• List of GMD Locomotives