Overview
The Komatsu D21A-3 is a crawler tractor listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 37 hp, operating weight of 7,562 lb, working depth of 12.60 ft and fuel capacity of 15.9 gal. This model can be reviewed for pulling power, implement matching, agricultural operations, and equipment comparison. Use the full specifications table to compare the Komatsu D21A-3 against similar crawler tractor models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Operating Weight
7,561.90
lb
Gross Power
37
hp
Full Specifications
29 specs
Dimensions
Ground Clearance
1.02 ft / 0.31 m
Height to Top of Cab
6.85 ft / 2.09 m
Length of Track on Ground
5.50 ft / 1.68 m
Length w/ Blade
11.32 ft / 3.45 m
Length w/o Blade
8.09 ft / 2.47 m
Width Over Tracks
5.06 ft / 1.54 m
Engine
Cooling System Fluid Capacity
3.70 gal / 14.0 L
Displacement
159 cu in / 2.6 L
Engine Make
2238
Engine Model
4D92-1
Fuel Capacity
15.90 gal / 60.2 L
Gross Power
37 hp / 27.6 kW
Height
22.30 ft / 6.80 m
Max Speed - Forward
4.30 mph / 6.9 km/h
Max Speed - Reverse
4 mph / 6.4 km/h
Number of Cylinders
4
Number of Forward Gears
3
Number of Reverse Gears
3
Operating Weight
7,562 lb / 3,430 kg
Power Measured @
2,450 rpm
Width
7.60 ft / 2.32 m
Hydraulics
Capacity
1 yd³ / 0.76 m³
Cutting Depth
12.60 ft / 3.84 m
Undercarriage
Ground Pressure
4 psi / 0.3 bar
Number Of Shoes Per Side
37
Number of Track Rollers per Side
5
Standard Shoe Size
11.82 in / 300 mm
Track Gauge
3.91 ft / 1.19 m
Track Pitch
5.32 in / 135 mm
Frequently Asked Questions
What is the operating weight of the Komatsu D21A-3? +
The Komatsu D21A-3 has an operating weight of 7,562 lb (3,430 kg). This places it in a class suited for crawler tractor applications where ground pressure and transport weight are key considerations.
How powerful is the Komatsu D21A-3 engine? +
The Komatsu D21A-3 produces 37 hp (27.6 kW) of engine power. This output is typical for its weight class and designed to handle demanding Crawler Tractor work cycles efficiently.
How does the Komatsu D21A-3 compare to similar Crawler Tractor models? +
You can compare the Komatsu D21A-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.