Wheel dozer incorporates innovations to lower engine emissions and boost fuel efficiency, improve reliability and serviceability and optimize operator efficiency and comfort. Uses a highly efficient Cat C32 engine and a new radiator with improved heat transfer capabilities. A variable-speed fan aids efficiency. For the operator, a larger cab includes a trainer’s seat and a low-effort joystick to control all blade functions. Includes the impeller clutch torque converter for superior operator control and optimum power to the ground, lockup clutch for direct drive efficiency and STIC control system for reduced steering and transmission control effort. Operating weight of 217,128 pounds. Glade capacities range from 33.1 to 58.2 cubic yards.