Comparison · Bulldozer
Caterpillar D1 vs Komatsu D155AX-8
The Komatsu D155AX-8 is about 400% heavier than the Caterpillar D1 (40,506 vs 8,099 kg), which usually means more stability and lifting capacity but higher transport weight.
The Komatsu D155AX-8 has about 340% more engine power (264 kW (354 hp) vs 60 kW (80 hp)).
Beyond the numbers, compare local dealer support, parts availability and resale value for Caterpillar and Komatsu in your region: over the life of a machine they often matter more than small specification differences.
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| Operating weight | 8,099 kg (17,900 lb) | 40,506 kg (89,300 lb) |
| Engine power | 60 kW (80 hp) | 264 kW (354 hp) |
| Net power (SAE J1349 / ISO 9249) | 59.7 kW (80 hp) at 2,200 rpm | — |
| Engine | Cat C3.6, 3.6 L (220 in³) | Komatsu SAA6D140E-7, 15.24 L, six cylinders |
| Drive | Hydrostatic, 1 drive pump, 2 track motors | — |
| Max. travel speed | 9 km/h (5.6 mph) forward; 10 km/h (6.2 mph) reverse | — |
| Track shoes | 355 mm (14 in) standard; 635 mm (25 in) or 762 mm (30 in) LGP | — |
| Blade widths | 2.64 m (104 in) standard; 3.15 m (124 in) LGP with grade-control prep | — |
| Net power (ISO 9249) | — | 264 kW (354 hp) at 1,900 rpm |
| Blade capacity | — | 9.4–11.9 m³ (12.3–15.6 yd³) |
| Transmission | — | Automatic TORQFLOW with lock-up torque converter |
| Forward 1st / 2nd / 3rd | — | 3.8 / 5.6 / 11.6 km/h |
| Reverse 1st / 2nd / 3rd | — | 4.6 / 6.8 / 14 km/h |
| Blade tilt | — | 160 mm |
| Ripper lift / tilt | — | 180 mm / 200 mm |
| Undercarriage | — | PLUS with rotating bushings |
| Emissions | — | US EPA Tier 4 Final |
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| Full D1 review | Full D155AX-8 review |
Specifications are typical figures for standard configurations and may be measured differently by each manufacturer (for example net vs gross power). Always confirm with the manufacturer or dealer. Build another comparison.