Classic Streamliners - TRAIN​CYCLOPEDIA

GE B23-7 Diesel-Electric Locomotive
The GE B23-7 is a diesel locomotive model that was first offered by GE in late 1977. Featuring a smaller 12 cylinder version of the FDL engine, it is the successor to GE's U23B produced from early 1968 to mid 1977, but at 62 ft 2 in (18.95 m) long is exactly 2 ft 0 in (0.61 m). longer. It competed with the very successful EMD GP38-2. General Electric also produced a variant, the BQ23-7, no.5130-5139, for the Seaboard Coast Line. A total of 537 B23-7's were built for 9 U.S. customers and 2  for customers in Mexico.

A B23-7A is a 12-cylinder B23-7 with horsepower boosted to 250 per cylinder or 3,000 horsepower. In 1980 the Missouri Pacific ordered three B23-7A's (Nos. 4667-4669, later UP Nos. 257-259) and tested them system-wide. The result was the GE model B30-7A, B30-7 with a 12-cylinder FDL prime mover. They were not renumbered into the B30-7A series on the MP because they lacked Sentry Wheel Slip and had different engine governors.

13 B23-7's were built by GE of Brazil in December of 1979 for Ferrocaril Unidos del Sureste (FUS) Nos. 522-524 and National Railways of Mexico (NdeM) Nos. 9130-9139. 17 B23-7s were built from GE kits in Mexico as Ferrocarriles Nacionales de México (NdeM) Nos. 10047-10052 and Nos.12001-12011.

Southern Railway's 54 units had Southern's "standard" high-short-hoods.

These engines have frequently been rebuilt as Control Car Remote Control Locomotives (CCRCL) due to their low value on the used locomotive market.

Original Owners

Atchison, Topeka and Santa Fe Railway

Quantity: 69
Road Numbers: 6350-6418
Notes: 6405-6418 last B23-7s built.


Quantity: 141
Road Numbers: 1900-2023, 2800-2816
Notes: 2800-2816 first B23-7s built.

Ferrocaril Unidos del Sureste (FUS)

Quantity: 3
Road Numbers: 522- 524

Louisville and Nashville Railroad (Family Lines)

Quantity: 15
Road Numbers: 5115-5129

Missouri Pacific Railroad

Quantity: 85
Road Numbers: 2289-2358, 4670-4684
Notes: 2289-2358 renumbered to 4600-4669.

Ferrocarriles Nacionales de México (NdeM)

Quantity: 122
Road Numbers: 1-01-1-08, 9130-9180, 10001-10052, 12000-12011

Providence and Worcester

Quantity: 1
Road Number: 2201

Seaboard Coast Line Railroad (Family Lines)

Quantity: 29
Road Numbers: 5100-5114, 5130-5139 (BQ23-7), 5140-5153

Southern Railway

Quantity: 54
Road Numbers: 3970-4023

Southern Pacific Railroad

Quantity: 15
Road Numbers: 5100-5114

Texas Utilities

Quantity: 2
Road Numbers: 3306–3307

GE B23-7 Overview
Type and origin
Power type: Diesel-electric
Builder: GE Transportation Systems, GE de Brazil
Model: B23-7
Build date: SEP 1977 – DEC 1984
Total produced United States: 412 units

Total produced Mexico: 125 units.
​ • AAR B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Gauge: 1,600 mm (5 ft 3 in), Brazil
Length: 62 ft 2 in (18.95 m)
Prime mover: GE FDL-12
Engine type: V12 diesel
Cylinders: 12
Performance figures
Power output: 2,250 hp (1,680 kW)
Nicknames: B-boat
Locale: North America, Mexico, Brazil

See also:

GE Dash 7 Series

GE Diesel Locomotives

GE Transportation

Diesel-Electric Locomotives

BNSF 4258, a GE B23-7, on February 15, 2005 at Commerce, California.

By Matthew J. Brown (User:Morven) - Own work, CC BY-SA 3.0, [Cropped]

BNSF 4258, a GE B23-7, on February 15, 2005 at Commerce, California. - NFL Jerseys and Gear
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