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Current number of specifications

 
Komatsu D21A-3 Crawler Tractor

Selected Dimensions

Dimensions
A. Length w/ Blade11.3 ft in3450 mm
B. Width Over Tracks5.1 ft in1540 mm
C. Height to Top of Cab6.8 ft in2085 mm
D. Length of Track on Ground5.5 ft in1675 mm
E. Ground Clearance1 ft in310 mm
F. Length w/o Blade8.1 ft in2465 mm
Undercarriage
G. Track Gauge3.9 ft in1190 mm
H. Standard Shoe Size11.8 in300 mm

Specification

Engine
MakeKomatsu
Model4D92-1
Gross Power37 hp27.6 kw
Power Measured @2450 rpm
Displacement159 cu in2.6 L
Number of Cylinders4
Operational
Operating Weight7561.9 lb3430 kg
Fuel Capacity15.9 gal60 L
Cooling System Fluid Capacity3.7 gal14 L
Transmission
TypeHS
Number of Forward Gears3
Number of Reverse Gears3
Max Speed - Forward4.3 mph6.9 km/h
Max Speed - Reverse4 mph6.4 km/h
Undercarriage
Ground Pressure4.1 psi28.4 kPa
Standard Shoe Size11.8 in300 mm
Number of Shoes per Side37
Number of Track Rollers per Side5
Track Pitch5.3 in135 mm
Track Gauge3.9 ft in1190 mm
Standard Blade
Width7.5 ft in2300 mm
Height22.2 in565 mm
Capacity0.97 yd30.74 m3
Cutting Depth12.6 in320 mm
Dimensions
Length w/o Blade8.1 ft in2465 mm
Length w/ Blade11.3 ft in3450 mm
Width Over Tracks5.1 ft in1540 mm
Height to Top of Cab6.8 ft in2085 mm
Length of Track on Ground5.5 ft in1675 mm
Ground Clearance1 ft in310 mm