Portal:Trains/Selected article/Week 32, 2014

Electro-Motive Diesel, Inc., also referred to as "EMD", is owned by Caterpillar through its wholly owned subsidiary Progress Rail Services Corporation. The company designs, manufactures and sells diesel-electric locomotives and diesel power engines under the Electro-Motive Diesel brand. EMD offers an extensive range of locomotive products in the rail industry. Electro-Motive Diesel, Inc. traces its roots to the Electro-Motive Engineering Corporation, founded in 1922. In 1930, General Motors Corporation purchased the Winton Engine Co. and Winton's primary customer of gasoline engines, the Electro-Motive Company (a gasoline-electric car manufacturer), combining the two to form GM's Electro-Motive Division (EMD) on January 1, 1941. In 2005, GM sold EMD to Greenbriar Equity Group LLC and Berkshire Partners LLC, which formed Electro-Motive Diesel, Inc., to facilitate the purchase. On August 2, 2010, Progress Rail Services Corporation completed the purchase of Electro-Motive Diesel, Inc. from Greenbriar, Berkshire, et al. making Electro-Motive Diesel, Inc. a wholly owned subsidiary of Progress Rail Services Corporation. EMD's headquarters, engineering facilities and parts manufacturing operations are physically located in McCook, Illinois. EMD's final assembly operations were located in London, Ontario, Canada, until the plant's closure in February 2012; a new assembly site was opened in late 2011 in Muncie, Indiana. EMD operates a traction motor maintenance, rebuild and overhaul facility in San Luis Potosí, Mexico. In 2010 EMD held approximately 30 percent of the market for diesel-electric locomotives in North America.