The B23-7 was a turbocharged 2,250hp locomotive with a twelve-cylinder 12-7FDL prime mover that rode on four AAR Type-B trucks. It was designed to directly compete with EMD's GP38-2, which was the most reliable and versatile locomotives of all time and could be found in yard, branchline, and even mainline service.

Locomotive features:

• die-cast chassis
• all-wheel drive
• operating headlight
• all-wheel electrical pickup
• skew-wound motor with bronze bearings