File:Union Pacific No. 96 - October 2018.jpg

English: Originally built as an SW7, UP #96 was one of 55 older EMD switchers (NW2s, SW7s, SW9s and TR4As) rebuilt by the railroad in the late 1970s and early 1980s as an SW10.

From Utahrails.net "The SW10 rebuild program included 645-power assemblies in place of the original 567-assemblies. Also included were all new cabling and wiring, and updated electrical gear, which included a couple module cards with some solid state circuitry. A new consolidated equipment rack for the water tank, oil filters, and other mechanical components was built using parts from retired GP9s. A new radiator section using twin 36-inch electrically-powered cooling fans, also taken from retired GP9s, was installed to replace the inefficient and expensive to maintain belt-driven 54-inch fan that originally equipped these units. The new design also included a large sandbox occupying the front of the unit in place of the original radiator fan intake and radiator shutter assembly. This new, external sand box design did away with the two original, internal sand boxes, with their four difficult-to-access sand traps. The cab interior layout and design also received attention. The new design included a modern control stand, electric cab heating, an electric refrigerator, and other features to bring it up to the FRA-mandated "clean cab" standards. Also as part of the rebuild program, the original friction bearing trucks were converted to roller bearings. The finished, operating weight for the SW10s was 251,200 pounds."

1. 96 (originally #1243) as retained by the Union Pacific as part of their heritage fleet, where it served as the steam shop switcher in Cheyenne. It was finally retired in 2014 and subsequently donated to the Oregon Rail Heritage Center in Portland, OR, where it is displayed today. The engine remains operable and sees some occasional use.