Overview
The Komatsu D21A-8 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 40 hp, operating weight of 8,690 lb, working depth of 14.00 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-8 against similar crawler tractor models by power, weight, capacity, dimensions, speed, and other technical values.
Key Specifications
Operating Weight
8,690
lb
Net Power
40
hp
Gross Power
43.10
hp
Full Specifications
28 specs
Dimensions
Height to Top of Cab
8.04 ft / 2.45 m
Length w/ Blade
11.04 ft / 3.36 m
Width Over Tracks
4.33 ft / 1.32 m
Engine
Cooling System Fluid Capacity
2.60 gal / 9.8 L
Displacement
186 cu in / 3.0 L
Engine Make
2238
Engine Model
4D94LE-2
Engine Oil Capacity
1.70 gal / 6.4 L
Final Drives Fluid Capacity
1.60 gal / 6.1 L
Fuel Capacity
15.90 gal / 60.2 L
Gross Power
43 hp / 32.1 kW
Height
2.70 ft / 0.82 m
Hydraulic Fluid Capacity
5.50 gal / 20.8 L
Max Speed - Forward
2.70 mph / 4.3 km/h
Max Speed - Reverse
3.50 mph / 5.6 km/h
Net Power
40 hp / 29.8 kW
Number of Cylinders
4
Number of Forward Gears
2
Number of Reverse Gears
2
Operating Weight
8,690 lb / 3,942 kg
Width
7.10 ft / 2.16 m
Hydraulics
Blade Angle (Both Directions)
25 deg
Cutting Depth
14 ft / 4.27 m
Undercarriage
Ground Contact Area
1,570 in² / 10,129.0 cm²
Ground Pressure
5 psi / 0.3 bar
Number Of Shoes Per Side
37
Number of Track Rollers per Side
5
Standard Shoe Size
11.80 in / 300 mm
Frequently Asked Questions
What is the operating weight of the Komatsu D21A-8? +
The Komatsu D21A-8 has an operating weight of 8,690 lb (3,942 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-8 engine? +
The Komatsu D21A-8 produces 43 hp (32.1 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-8 compare to similar Crawler Tractor models? +
You can compare the Komatsu D21A-8 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.