SP 4873

This loco was built in 5/1964 with ALCO construction number 3376-4 as one of a set of four ALCO demonstrator units. She was later purchased by the SP and assigned number SP 4873. It was built as a freight engine. She was quickly renumbered as an SP unit and ran in its as-build demonstrator scheme unti being repainted in standard for the time bloody nose colors. She featured a full 5 light headlight arrangement on the front and a single sealed beam headlight on the rear.

She was renumbered as SP 7103 in the 1965 system renumbering.

She was downgraded to heavy switcher status on 05/22/1974 and renumbered SP 3128.

SP 3128:

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