PC 3117:
This loco was built in 8/1968 with EMD serial number 34294. She was built as a freight roadswitcher, model GP40.
She became CR 3117 at the formation of Conrail.
She was leased by the Rio Grande on 11/03/1983 and given temporary number D&RGW 3172, as her PC/CR number would have conflicted with newly-delivered D&RGW GP40-2's.
She was acquired outright on 02/24/1984 and given her permanent number D&RGW 3133. She was not equipped with gyralights in service for the PC/CR and they were never retrofitted during her service for the Rio Grande.