A 3500 horsepower Komatsu SSDA18V170 V18, dual-stage turbocharged diesel engine developed by Industrial Power Alliance, a joint venture between Komatsu and Cummins, is coupled to a General Electric GTA-39 insulated-gate bipolar transistor alternator that sends electrical power to twin General Electric GDY108 induction traction motors, with one induction motor located on each side of the rear axle.