SL-SF 557
This loco was built in 11/1951 with EMD serial number 14238. She was built as a passenger engine equipped with a steam generator. She featured a sealed beam headlight in her front and rear ends. As with all Frisco GP7's, she did not feature dynamic brakes.
She became RI 4494.
She became RI 4477.
She became C&NW 4152.