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Comparison · Bulldozer

Caterpillar D8 vs Komatsu D65EX-18

The Caterpillar D8 is about 70% heavier than the Komatsu D65EX-18 (39,000 vs 23,000 kg), which usually means more stability and lifting capacity but higher transport weight.

The Caterpillar D8 has about 63% more engine power (264 kW (354 hp) vs 162 kW (217 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.

Caterpillar D8 bulldozer
Caterpillar Caterpillar D8
Komatsu crawler dozer working on a bypass road
Komatsu Komatsu D65EX-18
Operating weight 39,000 kg (86,000 lb)23,000 kg (50,700 lb)
Engine power 264 kW (354 hp)162 kW (217 hp)
Net power ≈264 kW (354 hp)≈162 kW (217 hp)
Blade capacity —≈5.6 m³ (7.3 yd³), Sigmadozer
Engine —Komatsu SAA6D114E-6
Transmission —Automatic powershift with lock-up torque converter
Strengths
  • + High pushing and ripping power
  • + Long component life
  • + 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
  • − Heavy transport
  • − Premium pricing
  • − iMC version adds significant cost
Full D8 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.