In January 1943 the four locomotives were renumbered 790–793 and remained in service until it was replaced by diesel-electric locomotives and put into storage. Two locomotives (791 and 793) were scapped in 1955, and 792 suffered a similar fate in August 1957. "The railroad nevertheless had to fire No. 790 up in the spring to assist Illinois Central trains through track inundated by flood waters near Cedar Rapids, because diesel-electric locomotives, with their electric motors mounted on the axles within the frames of the trucks (called bogies outside of the United States), shorted out in any water, whereas even the bottom of the firebox in a steam locomotive was much higher above the rail, hence above flood waters." It was sold to Louis S. Keller of Cedar Rapids, Iowa, in 1959 who had hoped to use it for excursions. It was used for "flood duty" in April 1965 at the Clinton Corn Processing Company "where it plowed through overflow from the Mississippi River." Later that year it was sold to David de Camp who planned to use it in the area of Lake Placid, New York, but these plans were not met. It became part of the Steamtown, USA collection when it was sold to F. Nelson Blount in January 1966.
The only surviving locomotive of the Chicago Union Transfer Railway, No. 790 is the only Illinois Central 2-8-0 Consolidation type of its class to survive. "About 146 standard gauge 2-8-0s survive in the United States, including Illinois Central No. 790". After the nationalization of Steamtown, the Steamtown National Historic Site retained this locomotive on the suggestion of the Steamtown Special History Study.