SP 6140D
This loco was built in 06/1949 with EMD construction number 6944. It was built as a 1500 hp F7 A-unit. It was painted in the SP's standard for the time black widow colors.
Her alpha suffix was done away with when the F3 fleet was renumbered in late 1949 as she became SP 6181.
She was retired on 08/30/1966 and sold to EMD on 09/14/1966.