5501 is a 1985 built GMD SD60F (serial number A4469) rated at 3800 hp, 2834 kW. This is a diesel electric riding on 2 3-axle trucks.

SD60F 5501 assists a GE-built Dash-9 2654 with westbound freight 399 at Bayview Junction, on Sunday July 23rd, 2006.