SPECS / COMPARISON
Caterpillar D4E vs Komatsu D31EX-21 KOMSTAT II
A detailed comparison of the Caterpillar D4E and the Komatsu D31EX-21 KOMSTAT II. Click a model name to view its full specifications.
Horsepower
Caterpillar D4E55.9 kW (75 HP)
Komatsu D31EX-21 KOMSTAT II55.9 kW (75 HP)
Operating Weight
Caterpillar D4E8820.0 kg (19444.8 lbs)
Komatsu D31EX-21 KOMSTAT II7130.5 kg (15720 lbs)
| Specification | Caterpillar D4E Crawler Dozers | Komatsu D31EX-21 KOMSTAT II Crawler Dozers |
|---|---|---|
| Type | Crawler Dozer | Crawler Dozer |
| Horsepower | 55.9 kW (75 HP) | 55.9 kW (75 HP) |
| Operating Weight | 8820.0 kg (19444.8 lbs) | 7130.5 kg (15720 lbs) |
| Engine Manufacturer | Caterpillar | Komatsu |
| Engine Model | 3304 | SAA4D102E-2 |
| Gross Power | 55.9 kW (75 HP) | — |
| Aspiration | Naturally | Turbocharged with aftercooled |
| Displacement | 7000.6 cc (427.2 cu in.) | 3932.9 cc (240 cu in.) |
| Transmission Type | PowerShift | Dual Power Shift |
| Number of Forward Gears | 3 | 3 |
| Number of Reverse Gears | 3 | 3 |
| Max Speed Forward | 9.3 km/h (5.8 mph) | 8.5 km/h (5.3 mph) |
| Max Speed Reverse | 11.4 km/h (7.1 mph) | 8.5 km/h (5.3 mph) |
| Ground Pressure | 0.9 bar (13.3 psi) | 0.4 bar (6.3 psi) |
| Fuel Capacity | 238.1 l (62.9 gal) | 165.0 l (43.6 gal) |
| Cab Height | 271.3 cm (106.8 in.) | 271.3 cm (106.8 in.) |
| Width Over Track | 198.1 cm (78.0 in.) | 185.9 cm (73.2 in.) |
| Length Overall | 387.1 cm (152.4 in.) | 402.3 cm (158.4 in.) |
| Length without Blade | 320.0 cm (126.0 in.) | — |
| Length of Track on Ground | 185.9 cm (73.2 in.) | 201.2 cm (79.2 in.) |
| Track Gauge | 152.4 cm (60.0 in.) | 146.3 cm (57.6 in.) |
| Ground Clearance | 36.6 cm (14.4 in.) | 39.6 cm (15.6 in.) |
| Ground Contact Area | 30989.6 cm³ (1891.1 cu in.) | 40902.2 cm³ (2496 cu in.) |
| No of Track Rollers Per Side | 5 | 5 |
| Shoe Size | 33.0 cm (13 in.) | 40.6 cm (16 in.) |
| Weight (Operating) | 8820.0 kg (19444.8 lbs) | 7130.5 kg (15720 lbs) |
| Net Power | — | 55.9 kW (75 HP) |
| Engine Oil Capacity | — | 12.5 l (3.3 gal) |
| Cooling System Capacity | — | 26.9 l (7.1 gal) |
| Hydraulic Capacity | — | 46.9 l (12.4 gal) |
| Final Drives Capacity | — | 3.4 l (0.9 gal) |
| Relief Valve Pressure | — | 206.2 bar (2990 psi) |
| No of Shoes Per Side | — | 38 |
| Track Pitch | — | 144.8 cm (57 in.) |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.