The 87,100-lb. D155AX-7 crawler dozer is powered by a 354-hp Komatsu engine certified to EPA Tier 4 Interim and EU Stage 3B emissions standards. SIGMADOZER blade incorporates auto blade pitch ...

Komatsu says its first Intelligent-Machine-Control dozer above 350 hp, the D155AXi-8, moves material up to 8% more efficiently than a similar dozer with aftermarket grade control systems.