The 350-hp T858 Commander is a sliding offset trencher for use in rock. Weighing 92,000 pounds, T858 can shift the trencher 32.5 inches in either direction. Powered by a Cat C9 diesel with 350 horsepower, it has a hydrostatic transmission. An integrated electronic control system monitors engine performance and adjusts ground speed. Auto-tilt track has an oscillating frame that allows individual tracks to follow the ground's contour.