Komatsu D21A-5 Dozer

Dimensions

Ground Clearance 1 ft (0 m)
Height – Top of Cab 7 ft (2 m)
Length of Track on Ground 6 ft (2 m)
Length w/ Blade 11 ft (3 m)
Length w/o Blade 8 ft (2 m)
Width Over Tracks 5 ft (2 m)

Engine

Displacement 180 cu in (2,941 cu cm)
Engine Model 4D92-2P
Gross Power 39 hp (29 kw)
Max Torque 109 lbs ft (147 nm)
Number of Cylinders 4
Power Measured @ 2450 rpm

Hydraulic System

Pump Flow Capacity 14 gpm (53 lpm)
Relief Valve Pressure 2204.7 psi

Operating Specifications

Cooling System Fluid Capacity 4 gal (13 l)
Fuel Capacity 16 gal (60 l)
Operating Weight 7,981 lbs (3,620 kg)

Standard Blade

Capacity 1 cu yd (1 cu m)
Height 23 in (59 cm)
Width 7 ft (2 m)

Transmission

Max Speed – Forward 3 mph (5 kph)
Max Speed – Reverse 3 mph (5 kph)
Number of Forward Gears 2
Number of Reverse Gears 2
Transmission Type HS

Undercarriage

Ground Pressure 4.3 psi
Number of Shoes per Side 37
Number of Track Rollers per Side 5
Standard Shoe Size 12 in (30 cm)
Track Gauge 4 ft (1 m)
Track Pitch 5 in (14 cm)
Ask A Question