The two units were completed on June 1 of that year and delivered to the Reading via the Baltimore and Ohio Railroad.

902 was involved in a derailment in February 1978, and when it re-entered service in June, it was also repainted into the SEPTA paint.

[2] In January 2007, the Lancaster Chapter donated the 902 to the Reading Company Technical and Historical Society.

[3] In January 2010, the 902 and 903 were loaned to Steamtown National Historic Site for a year to maintain the locomotives in exchange for excursion rights.

In September 2023, the 903 was sold to SMS Rail Lines for use on their Woodstown Central tourist railroad in New Jersey.