The 118,385-pound WA600-6 wheel loader is powered by a Komatsu six-cylinder diesel, with cooled exhaust gas recirculation and air-to-air charge air-cooling, producing 502 horsepower — a 12 percent increase. Top travel speed increased to 23.4 mph. Automatic Joystick Steering replaces the steering wheel. Komatsu claims the new model is 28 percent more productive. The 8.4-cubic-yard bucket and 13-foot dump clearance allow it to load haul trucks up to 70 tons.