Komatsu Tier 3-compliant SAA6D170E-5 engine

Producing 502 horsepower, the Komatsu Tier 3-compliant SAA6D170E-5 engine powering Komatsu's new WD600-6 wheel dozer offers increases in output and features over the previous tractor model. The engine comes standard with dual-mode power – Economy for fuel efficiency and Power for productivity – as well as a high-pressure common rail fuel injection system, a cooled exhaust gas recirculation system and an air-to-air charge air-cooling system. The 108,280-pound WD600-6 wheeled dozing tractor is designed to work with a straight or U blade, boasting top speeds of 23.4 and 22.4 miles per hour in forward and reverse, respectively.