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Industry Locomotive
Founded 1940
Defunct 1953
Members American Locomotive Company and General Electric

Alco-GE was a partnership between the American Locomotive Company and General Electric that lasted from 1940 to 1953.[1] Their main competitor was EMD. Under this arrangement, Alco produced the locomotive body and prime mover, and GE supplied the electrical gear. Alco had previously partnered with GE and Ingersoll-Rand to produce the first successful line of diesel-electric switch engines from 1924 to 1928. Alco management sought GE's support for stronger positioning in the market for diesel road locomotives then dominated by EMD, while GE sought to expand the market for their electrical equipment after EMD started producing their own.

Notable locomotives produced by Alco-GE were the RS-1, the first road switcher, and UP 50, a prototype gas turbine-electric locomotive.

Alco-GE attained about a 40% share of the market for diesel locomotives as of 1948, mainly for switching and short-haul applications, but they could not crack EMD's dominant position in mainline locomotives. Alco's development of higher powered engines for such locomotives had not been satisfactory and EMD's introduction of the GP7 road-switcher in 1949 threatened Alco-GE's position in their most advantageous market.

GE dissolved the partnership in 1953 to develop and build their own locomotives. Alco still received electrical gear from GE, but only as a customer and not a corporate partner. GE took over the gas turbine-electric venture and in 1960 would replace Alco as EMD's strongest competitor in the North American market. Alco went out of business in 1969.


  1. ^ Solomon, Brian (2014). GE and EMD Locomotives. Voyageur Press. ISBN 9781627883979. Retrieved 30 August 2017.