Atchison, Topeka and Santa Fe Railway 108, Diesel locomotive at Southern California Railway Museum, US.

Santa Fe 108 is a 1967 EMD FP45 diesel locomotive at the Southern California Railway Museum in Perris. Its 20-cylinder prime mover and six traction motors produce 3,600 horsepower, geared for passenger speeds above 90 mph. The unit was renumbered 98 in the early 1990s and given to the museum by BNSF in 1999.

Built in 1967, this engine was the final passenger locomotive model purchased by Atchison, Topeka and Santa Fe Railway before Amtrak took over operations in 1971. After this transition, the railroad shifted away from passenger service and the locomotive later served freight operations.

The red and silver Warbonnet livery was the Santa Fe's passenger branding, and 108 carried it on trains such as the Super Chief between Chicago and Los Angeles. When Amtrak took over passenger service in 1971, the locomotive was reassigned to freight and the scheme was altered with a large red "Santa Fe" lettering.

The locomotive is displayed at the Southern California Railway Museum in Perris, where parking and admission are free except during special events; tickets are required only to ride the museum railway. Grounds, static exhibits and shops can be toured self-guided or with a docent, and a picnic area and signal garden sit near the main entrance.

The locomotive operated on the famous Super Chief service, one of the most prestigious train routes in the United States. Today it is one of the few preserved examples of this specific locomotive model, which is no longer manufactured anywhere.