Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200
Komatsu HM400-3 is an articulated off-highway truck designed for hauling material in mining, quarry, and large earthmoving applications. It is part of Komatsu's HM series and is commonly used for site development, road construction, and bulk material transport on rough terrain. The HM400-3 features a payload capacity suited to medium-duty haul cycles, all-wheel drive, and articulated steering for maneuverability on uneven ground. It is typically powered by a Komatsu diesel engine and built with a rigid dump body, suspension system, and operator cab designed for productivity, stability, and durability in demanding off-road conditions.