Classic Streamliners - TRAIN​CYCLOPEDIA

Former B&O No. 2401, an SD20-2 rebuild, works the Pacific Harbor Line in Long Beach, California in February, 2005.

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Baltimore and Ohio SD20-2 Diesel-Electric Locomotive
The SD20-2 was a type of road switcher diesel-electric locomotive created in 1979/1980 by the Baltimore and Ohio Railroad by rebuilding EMD SD35 locomotives. Five of the B&O's SD35 fleet were rebuilt at their Cumberland Yard by fitting a non-turbocharged EMD 645 engine and upgraded electrical systems. They were placed in service at the B&O Queensgate Yard in Cincinnati, Ohio attached to slugs, non-powered units with traction motors that draw their power from the "mother" unit.

With the B&O, the SD20-2s were numbered Nos. 7700–7704. At some point, No. 7700 and No. 7702 swapped numbers. All of them passed to CSX Transportation as Nos. 2400-2404, but are now withdrawn from CSX service. One of the units, No. 2401, went on to the Ohio Central Railroad System; No. 2401 was in turn resold to the Pacific Harbor Line and reassigned road No. 45 (pictured above).  No. 2404 was scrapped by Cycle Systems of Roanoke, Virginia in August 2006.

B&O SD20-2 Overview
Type and origin
Power type: Diesel-electric
Builder, Original: GM-EMD
Rebuild: B&O
Build date: Original: 1964
Rebuild: 1979/80
Total produced: 5
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Performance figures
Power output: 2,000 hp (1,500 kW)

See also:


Baltimore & Ohio Railroad

GM-EMD locomotives

Former B&O No. 2401, an SD20-2 rebuild, works the Pacific Harbor Line in Long Beach, California in February, 2005.
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