SP 6128D
This loco was built in 01/1949 with EMD construction number 6920. It was built as a 1500 hp F3 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 December 1949 as she became SP 6157.
She was retired and sold to EMD on 11/20/1963.