SP 7744
This loco was built in 5/1965 with EMD construction number 30151. She was built as a freight engine. She was painted in standard for the time bloody nose colors and featured a full 5 light headlight arrangement on the front end. The rear featured a dual sealed beam light only.
She was assigned number SP 6641 in the 1965 system renumbering.
She entered the GRIP program and emerged as SP 6315 in 04/05/1979. She was rebuilt by outside contractor Morrison-Knudsen shops. She retained her turbocharger, and received a full 5-light rear gyralight package.