Komatsu D21A-8 Dozer

Dimensions

Height – Top of Cab 8 ft (2 m)
Length w/ Blade 11 ft (3 m)
Width Over Tracks 4 ft (1 m)

Engine

Aspiration naturally aspirated
Displacement 186 cu in (3,048 cu cm)
Engine Model 4D94LE-2
Gross Power 43 hp (32 kw)
Make Komatsu
Model 4D94LE-2
Net Power 40 hp (30 kw)
Number of Cylinders 4

Operating Specifications

Cooling System Fluid Capacity 3 gal (10 l)
Engine Oil Capacity 2 gal (6 l)
Final Drives Fluid Capacity 2 gal (6 l)
Fuel Capacity 16 gal (60 l)
Hydraulic Fluid Capacity 6 gal (21 l)
Operating Weight 8,690 lbs (3,942 kg)

Standard Blade

Blade Angle (both directions) 25 degrees
Height 3 in (7 cm)
Width 7 ft (2 m)

Transmission

Max Speed – Forward 3 mph (4 kph)
Max Speed – Reverse 4 mph (6 kph)
Number of Forward Gears 2
Number of Reverse Gears 2
Transmission Type Komatsu HYDROSHIFT transmission

Undercarriage

Ground Contact Area 1,570 cu in (25,728 cu cm)
Ground Pressure 4.8 psi
Number of Shoes per Side 37
Number of Track Rollers per Side 5
Standard Shoe Size 12 in (30 cm)
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