The GE U23B is a 2,250 horsepower diesel-electric locomotive built by GE Transportation from 1968 to 1977. It was one of the most successful models of the Universal Series, with 481 units built, including 16 exported to Peru. The U23B was replaced by the B23-7.

The 2300 horsepower GE U23C diesel-electric locomotive model was first offered by GE in 1968, and featured a V-type 12 cylinder version of the standard GE FDL diesel motor. Designed as a competitor to EMD's SD38 and SD39 series, it was intended for heavy transfer, drag and hump service where speed was not a priority.

2025年1月2日 · The U23B was a mid-powered, four-axle road-switcher General Electric offered between 1968-1977. It was one of GE's most successful U-boats.

2024年11月18日 · General Electric broke into the domestic road-switcher locomotive market over six decades ago with its U25B model in 1961. The U-series line would continue to evolve and grow, laying the foundation for the company’s ascent to becoming the No. 1 locomotive builder in North America in later decades.

The GE U23B Diesel-electric locomotive was introduced by GE Transportation in 1968 as a medium horsepower roadswitcher, featuring a 12 cylinder FDL engine. It was one of the most successful models of the Universal Series, with railroads ordering it from August 1968 until June 1977 when it was replaced by the B23-7 . 481 units were built ...

Diesel & Electric Locomotive Specifications, 1981, by F. K. Hudson.

Powered by a V12 FDL prime mover, the 2250 h.p. U23B was GE’s intermediate-sized four-axle road-switcher of the late 1960s through the mid 1970s. The U23B’s direct competitor during this period was the very successful EMD GP38.

These locomotives were originally numbered #301-316, but were later renumbered #2301-2316. These were the first U23Bs ever built, and were the only ones with radiator fairings. The U23Bs were factory built with the nose Gyralite signal light. #2312 was repainted as #1776 for the Bicentenary and named “E.W. McCrea.”

Performance on these first run models is perfect in every way - smooth, quiet, flawless pickup and throttle response, exceptional pulling power, etc. Atlas released all-new U23B models in 2024. These were available either DCC-Ready or with factory-installed ESU LokSound decoders -

N MASTER GE U23B LOCOMOTIVE. Powered by a V12 FDL prime mover, the 2250 h.p. U23B was GE’s intermediate-sized four-axle road-switcher of the late 1960s through the mid 1970s. The U23B’s direct competitor during this period was the very successful EMD GP38.