Comparison · Bulldozer
John Deere 550K vs Komatsu D39EX-24
The Komatsu D39EX-24 is about 9% heavier than the John Deere 550K (9,930 vs 9,132 kg), which usually means more stability and lifting capacity but higher transport weight.
The Komatsu D39EX-24 has about 13% more engine power (78 kW (105 hp) vs 69 kW (93 hp)).
Beyond the numbers, compare local dealer support, parts availability and resale value for John Deere 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 | 9,132 kg (20,100 lb) | 9,930 kg (21,900 lb) |
| Engine power | 69 kW (93 hp) | 78 kW (105 hp) |
| Net power | ≈69 kW (92 hp) | — |
| Drive | Dual-path hydrostatic | Dual-path hydrostatic, in-shoe-mounted travel motors |
| Blade width | 2.67–2.92 m (105–115 in) | — |
| Track on ground | 2.34 m (92 in) | — |
| Net power (ISO 9249) | — | 78 kW (105 hp) at 2,200 rpm |
| Blade capacity | — | 2.21 m³ (2.89 yd³), PAT with adjustable pitch |
| Engine | — | Komatsu SAA4D95LE-7, 3.26 L, four cylinders |
| Ground pressure | — | 36.1 kPa (5.24 psi) |
| Track gauge | — | 1.62 m (5 ft 4 in) |
| Length of track on ground | — | 2.35 m (7 ft 8 in) |
| Track shoe width | — | 510 mm |
| Type | — | PLUS undercarriage |
| Emissions | — | US EPA Tier 4 Final |
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| Full 550K review | Full D39EX-24 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.