Overview
The Komatsu HM400-3 is a articulated dump truck listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 334 hp, capacity of 25.9 yd3, travel speed of 58.5 mph and fuel capacity of 518.0 gal. This model can be reviewed for equipment comparison, jobsite planning, fleet research, and specification-based machine selection. Use the full specifications table to compare the Komatsu HM400-3 against similar articulated dump truck models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Net Power
334
hp
Gross Power
338
hp
Rated Payload
40
lb
Overall Length
36.44
ft
Full Specifications
22 specs
Dimensions
Capacity - Heaped
24 yd³ / 18.35 m³
Capacity - Struck
18.20 yd³ / 13.91 m³
Dump Ground Clearance
28.88 ft / 8.80 m
Ground Clearance
2.33 ft / 0.71 m
Overall Height
12.26 ft / 3.74 m
Overall Length
36.44 ft / 11.11 m
Overall Width
11.32 ft / 3.45 m
Rated Payload
40 lb / 18 kg
Wheelbase
9.72 ft / 2.96 m
Engine
Capacity - Heaped
25.90 yd³ / 19.80 m³
Displacement
15 cu in / 0.3 L
Engine Model
Komatsu SAA6D140E-5
Fuel Capacity
518 gal / 1,960.8 L
Gross Power
338 hp / 252.0 kW
Max Speed
58.50 mph / 94.1 km/h
Net Power
334 hp / 249.1 kW
Number of Cylinders
6
Number of Forward Gears
6
Number of Reverse Gears
2
Power Measured @
2,000 rpm
Total Empty
43 lb / 20 kg
Total Loaded
71 lb / 32 kg
Related Machines
Frequently Asked Questions
How powerful is the Komatsu HM400-3 engine? +
The Komatsu HM400-3 produces 338 hp (252.0 kW) of engine power. This output is typical for its weight class and designed to handle demanding Articulated Dump Truck work cycles efficiently.
How does the Komatsu HM400-3 compare to similar Articulated Dump Truck models? +
You can compare the Komatsu HM400-3 side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.