Built by  EMD in1967 - Rebuilt 9/82 Builders No. 33189
Donated by Burlington Northen Santa Fe Railroad in 2000
Previous owners BNSF RR, Atchison Topeka & Sante Fe Railway

Prime mover 20-645E3 - 3600 HP - Weight 399,000 lb.

Class engine #90 was built in December 1967 as Santa Fe 100. Right out of the box, the 100 and sister 102 had the honor of leading the record-breaking inaugural run of the westbound Super C, a high-priority, 79 mile-per-hour freight train from Chicago to Los Angeles in January 1968. Following this grand entrance, the 100 settled down to pulling Santa Fe's finest passenger trains. It was renumbered into the 5940-series along with the rest of the FP45's in March 1970, as part of the 1969/70 general renumbering. With the coming of Amtrak in 1971, the FP45's were reassigned to freight duties, and sometime in late 1971 or early 1972, the 5940 shed its flashy red and silver warbonnet for Santa Fe's more mundane blue and yellow freight scheme. Within a few years, it was repainted again into the blue and yellow warbonnet scheme. The Santa Fe remained committed to first class passenger trains even while other railroads were decreasing or completely abandoning passenger service. Nine 3600 hp FP45 locomotives numbered 100-108 were delivered for service on the El Capitan and Super Chief in 1967, painted in the classic red and silver "warbonnet" colors which had graced Santa Fe's diesel passenger locomotives since 1937. Santa Fe ended passenger service with the coming of Amtrak in 1971 and the FP45s were assigned to freight service for the remainder of their careers, other than occasional use pulling business and special trains. In 1989 it was decided that all new locomotives would be delivered in the red and silver warbonnet paint, called the "Super Fleet." The FP45s were repainted into a version of the paint scheme in which they were delivered. These locomotives were renumbered several times with number 90 as the last of its kind in active service on the railroad before being donated by the Burlington Northern Santa Fe Railway in December of 1999.