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Comparison · Bulldozer

Komatsu D51EX-24 vs Komatsu D65EX-18

The Komatsu D65EX-18 is about 77% heavier than the Komatsu D51EX-24 (23,000 vs 13,000 kg), which usually means more stability and lifting capacity but higher transport weight.

The Komatsu D65EX-18 has about 67% more engine power (162 kW (217 hp) vs 97 kW (130 hp)).

Komatsu D51PX crawler dozer
Komatsu Komatsu D51EX-24
Komatsu crawler dozer working on a bypass road
Komatsu Komatsu D65EX-18
Operating weight 13,000 kg (28,700 lb)23,000 kg (50,700 lb)
Engine power 97 kW (130 hp)162 kW (217 hp)
Net power ≈97 kW (130 hp)≈162 kW (217 hp)
Drive Hydrostatic—
Blade PAT (power-angle-tilt)—
Blade capacity —≈5.6 m³ (7.3 yd³), Sigmadozer
Engine —Komatsu SAA6D114E-6
Transmission —Automatic powershift with lock-up torque converter
Strengths
  • + Excellent blade visibility
  • + Smooth hydrostatic drive
  • + iMC version available
  • + Sigmadozer blade moves more material per pass
  • + Automatic transmission with lock-up for efficiency
  • + iMC 2.0 integrated machine control option
  • + Strong reputation for durability
Watch-outs
  • − Smaller blade capacity than medium dozers
  • − Premium pricing
  • − iMC version adds significant cost
Full D51EX-24 reviewFull D65EX-18 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.