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Komatsu America offers the D51EX-22 and D51PX-22 crawler dozers for work in construction, site preparation, home building, forestry, utility and quarry applications. These mid-sized machines are outfitted with Komatsu’s 6.69-liter, Tier-3 engine, which produces 130 horsepower at 2,200 rpm. The D51 steering system delivers smooth movement when dozing and permits the machine to approach objects accurately in corner grading and sidewall operations. The dozers’ large power-angle-tilt blades have capacities of 3.5 to 3.8 cubic yards.