The GE B36-7 is a 4-axle diesel-electric locomotive built by GE Transportation Systems between January 1980 and September 1985. 222 examples of this locomotive were built for North American railroads and eight units were built for a Colombian coal mining operation. The units were designed as successors to GE's U36B's. Of the 230 locomotives built, 180 of them were built for two Eastern railroads - Seaboard System Railroad (which became part of CSX Transportation in 1986) and Conrail.[1]
These 4-axle locomotives were powerful when introduced in 1980. When first built the units were rated at 3,600 hp (2,700 kW), later versions were rated at 3,750 hp (2,800 kW). They were designed for fast and priority service, moving intermodal and container trains.