Most were retired around 1990 and replaced in service by rebuilt geeps, such as GP10s from VMV in Paducah, KY, and other rebuilders.

[citation needed] Of all of the locomotives turned over to the Korean National Railroad, only one, KNR #2001, believed to be ex-USAX #2011, still exists.

[citation needed] Two examples of these locomotives, ex-USAX #2019 and #2022, are preserved at the Heart of Dixie Railroad Museum in Alabama.

Both served in military bases in the United States until the early 1990s, finishing their careers at Fort Campbell, Ky.

The locomotive was rebuilt with a standard electrical transmission, and served EMD as plant switcher #105 until 1968.