SP 5377
This loco was built in 1/1955 with EMD construction number 20228. It was built as a reserve passenger engine with steam generator. It was painted in standard for the time "black widow" colors and featured a full 5 light headlight arrangement on each end.
She was assigned number SP 3855 in the 1965 system renumbering.
She entered the GRIP program and emerged as SP 4331 on 2/5/1971.