Komatsu D21A-3 Crawler Dozer
Crawler Dozer // Komatsu
Komatsu D21A-3 Dimensions
| Ground Clearance: | 1.1 ft (0 m) |
| Height - Top of Cab: | 6.9 ft (2 m) |
| Length of Track on Ground: | 5.5 ft (2 m) |
| Length w/ Blade: | 11.4 ft (3 m) |
| Length w/o Blade: | 8.1 ft (2 m) |
| Width Over Tracks: | 4 ft (1 m) |
| Track Gauge: | 5.1 ft in (13 cm) |
Komatsu D21A-3 Engine
| Displacement: | 159 cu in (0 m) |
| Engine Model: | 4D92-1 |
| Gross Power: | 37 hp (28 kw) |
| Number of Cylinders: | 4.0 |
| Power Measured @: | 2450 rpm |
Komatsu D21A-3 Hydraulic System
Komatsu D21A-3 Operating Specifications
| Cooling System Fluid Capacity: | 3.7 gal (14 l) |
| Fuel Capacity: | 15.9 gal (60 l) |
| Operating Weight: | 7561.9 lbs (3,430 kg) |
Komatsu D21A-3 Standard Blade
| Blade Angle (both directions): | 1 cu yds (1 m) |
| Height: | 22.3 in (57 cm) |
| Width: | 7.6 ft (2 m) |
Komatsu D21A-3 Transmission
| Max Speed - Forward: | 4.3 mph (7 kph) |
| Max Speed - Reverse: | 4 mph (6 kph) |
| Number of Forward Gears: | 3.0 |
| Number of Reverse Gears: | 3.0 |
| Transmission Type: | HS |
Komatsu D21A-3 Undercarriage
| Ground Pressure: | 4.2 psi |
| Number of Shoes per Side: | 37.0 |
| Number of Track Rollers per Side: | 5.0 |
| Standard Shoe Size: | 11.9 in (30 cm) |
| Track Gauge: | 4 ft (1 m) |
