SPECS / COMPARISON
Komatsu D155AX-7 vs Komatsu WF550T-3
A detailed comparison of the Komatsu D155AX-7 and the Komatsu WF550T-3. Click a model name to view its full specifications.
Horsepower
Komatsu D155AX-7268.5 kW (360 HP)
Komatsu WF550T-3235.0 kW (315.2 HP)
Operating Weight
Komatsu D155AX-739507.9 kg (87100 lbs)
Komatsu WF550T-335100.0 kg (77382.3 lbs)
| Specification | Komatsu D155AX-7 Crawler Dozers | Komatsu WF550T-3Crawler Dozers |
|---|---|---|
| Type | Crawler Dozer | Crawler Dozer |
| Horsepower | 268.5 kW (360 HP) | 235.0 kW (315.2 HP) |
| Operating Weight | 39507.9 kg (87100 lbs) | 35100.0 kg (77382.3 lbs) |
| Pump Flow | 180.2 LPM (47.6 GPM) | — |
| Engine Manufacturer | Komatsu | Komatsu |
| Engine Model | SAA6D140E-6 | SA6D140E |
| Gross Power | 268.5 kW (360 HP) | 235.0 kW (315.2 HP) |
| Net Power | 264.0 kW (354 HP) | — |
| Number of Cylinders | 6 | — |
| Displacement | 250.7 cc (15.3 cu in.) | 15200.7 cc (927.6 cu in.) |
| Power Measured RPM | 1900 RPM | — |
| Transmission Type | Torqflow | Full powershift |
| Number of Forward Gears | 3 | 4 |
| Number of Reverse Gears | 3 | 4 |
| Max Speed Forward | 11.6 km/h (7.2 mph) | 8.2 km/h (5.1 mph) |
| Max Speed Reverse | 14.0 km/h (8.7 mph) | 12.7 km/h (7.9 mph) |
| Ground Pressure | 0.8 bar (11.9 psi) | — |
| Fuel Capacity | 624.6 l (165 gal) | 336.9 l (89 gal) |
| Engine Oil Capacity | 37.1 l (9.8 gal) | 37.9 l (10 gal) |
| Cooling System Capacity | 103.3 l (27.3 gal) | 68.1 l (18 gal) |
| Hydraulic Capacity | 91.6 l (24.2 gal) | 159.0 l (42 gal) |
| Final Drives Capacity | 31.0 l (8.2 gal) | — |
| Pump type | Piston | 2 pump system w/main, switch pump |
| Hydraulic Pump Flow | 180.2 LPM (47.6 GPM) | — |
| Relief Valve Pressure | 274.4 bar (3980 psi) | — |
| Ground Contact Area | 101.6 cm³ (6.2 cu in.) | — |
| No of Carrier Rollers Per Side | 2 | — |
| No of Shoes Per Side | 42 | — |
| No of Track Rollers Per Side | 7 | — |
| Shoe Size | 71.1 cm (28 in.) | — |
| Weight (Operating) | 39507.9 kg (87100 lbs) | 35100.0 kg (77382.3 lbs) |
| Max Torque | — | 1375.1 N-m (1014.2 lbs/ft) |
| Alternator Supplied Amp. | — | 75 A |
| Alternator | — | 75 A |
| Battery | — | 24 V |
| Cab Height | — | 423.7 cm (166.8 in.) |
| Width Over Track | — | 121.9 cm (48.0 in.) |
| Length Overall | — | 816.9 cm (321.6 in.) |
| Ground Clearance | — | 51.8 cm (20.4 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.