Known for its maneuverability and tight turning radius, the HD405-8 helps you deliver high productivity and offers impressive durability. A fully automatic K-ATOMiCS transmission with lock-up torque converter, a hydro-pneumatic suspension system and oil-cooled multiple-disc brakes makes this the right choice for a variety of jobs.
Up to 6% reduction in fuel consumption*
Increased horsepower by 3.2%*
Enhanced serviceability*
Improved operator environment*
Features and benefits
MacPherson-strut-type suspension
A comfortable ride, even on uneven roads. The MacPherson-strut-type independent front suspension allows the front wheels to follow uneven road surfaces smoothly.
Fully hydraulic wet multiple-disc brakes
Give your operator greater confidence at higher downhill speeds with wet multiple-disc brakes. Continuously oil-cooled, multiple-disc brakes function as a highly responsive retarder for added reliability and stable brake performance.
Automatic retard speed control
Let your operator concentrate more on steering by simply setting the downhill travel speed at increments of 0.6 mph to match the optimum speed for slope. Travel speed is automatically lowered if oil temperature increases to a set limit.
K-ATOMiCS transmission
Komatsu Advanced Transmission with Optimum Modulation Control System (K-ATOMiCS) helps avoid unnecessary fuel consumption, reduce material spillage and provide a smoother ride for operators by automatically selecting a gear position depending on grade, speed and acceleration.