SPECS / COMPARISON
Komatsu D20P-3 vs Komatsu D21A-3
A detailed comparison of the Komatsu D20P-3 and the Komatsu D21A-3. Click a model name to view its full specifications.
Horsepower
Komatsu D20P-326.1 kW (35 HP)
Komatsu D21A-327.6 kW (37 HP)
Operating Weight
Komatsu D20P-33600.0 kg (7936.7 lbs)
Komatsu D21A-33430.0 kg (7561.9 lbs)
| Specification | Komatsu D20P-3 Crawler Dozers | Komatsu D21A-3Crawler Dozers |
|---|---|---|
| Type | Crawler Dozer | Crawler Dozer |
| Horsepower | 26.1 kW (35 HP) | 27.6 kW (37 HP) |
| Operating Weight | 3600.0 kg (7936.7 lbs) | 3430.0 kg (7561.9 lbs) |
| Engine Manufacturer | Komatsu | Komatsu |
| Engine Model | 4 D92-1A | 4 D92-1 |
| Gross Power | 26.1 kW (35 HP) | 27.6 kW (37 HP) |
| Number of Cylinders | 4 | 4 |
| Displacement | 2600.6 cc (158.7 cu in.) | 2605.5 cc (159 cu in.) |
| Power Measured RPM | 2450 RPM | 2450 RPM |
| Transmission Type | Direct Drive | Hydrostatic |
| Number of Forward Gears | 3 | 3 |
| Number of Reverse Gears | 2 | 3 |
| Ground Pressure | 0.2 bar (2.6 psi) | 0.3 bar (4.2 psi) |
| Cab Height | 213.4 cm (84.0 in.) | 210.3 cm (82.8 in.) |
| Width Over Track | 185.9 cm (73.2 in.) | 155.4 cm (61.2 in.) |
| Length Overall | 326.1 cm (128.4 in.) | 347.5 cm (136.8 in.) |
| Length without Blade | 249.9 cm (98.4 in.) | 246.9 cm (97.2 in.) |
| Length of Track on Ground | 167.6 cm (66.0 in.) | 167.6 cm (66.0 in.) |
| Track Gauge | 134.1 cm (52.8 in.) | 121.9 cm (48.0 in.) |
| Ground Clearance | 39.6 cm (15.6 in.) | 33.5 cm (13.2 in.) |
| No of Shoes Per Side | 37 | 37 |
| No of Track Rollers Per Side | 5 | 5 |
| Shoe Size | 51.1 cm (20.1 in.) | 30.2 cm (11.9 in.) |
| Weight (Operating) | 3600.0 kg (7936.7 lbs) | 3430.0 kg (7561.9 lbs) |
| Track Pitch | 13.7 cm (5.4 in.) | 13.7 cm (5.4 in.) |
| Max Speed Forward | — | 6.9 km/h (4.3 mph) |
| Max Speed Reverse | — | 6.4 km/h (4 mph) |
| Fuel Capacity | — | 60.2 l (15.9 gal) |
| Cooling System Capacity | — | 14.0 l (3.7 gal) |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.