| GE Dash 7 Series | 
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| | Specifications | 
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 | Configuration: 
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 | • AAR | B-B (B23-7, BQ23-7, B30-7, B30-7A, B36-7) C-C (C30-7, C30-7A, C36-7)
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 | Gauge | 4 ft 8+1⁄2 in (1,435 mm) | 
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 | Length | 61 ft 2 in (18.64 m) (B23-7) 67 ft 3 in (20.50 m) (C30-7)
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 | Fuel capacity | 2,100 US gal (7,950 L; 1,750 imp gal) (B23-7) 3,000 US gal (11,400 L; 2,500 imp gal) (C30-7)
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 | Prime mover | GE 7FDL | 
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 | Engine type | 4-stroke diesel engine | 
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 | Aspiration | Turbocharged | 
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 | Cylinders | V12 or V16 | 
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| | Performance figures | 
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 | Power output | 2,300 hp (1,720 kW) (B23-7, BQ23-7) 3,000 hp (2,240 kW) (B30-7, B30-7A, C30-7, C30-7A)
 3,600 hp (2,680 kW) (B36-7, C36-7)
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| | Career | 
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 | Operators | Various | 
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 | Nicknames | 'B-Boat', 'C-Boat', 'Wheelchair'(Brazil) | 
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 | Locale | North America, Brazil | 
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 | Disposition | Most retired from service, some in service with regional and shortline railroads | 
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The Dash 7 Series is a line of diesel-electric freight locomotives built by GE Transportation. It replaced the Universal Series in the mid-1970s, and was superseded by the Dash 8 Series in the mid-1980s.