Skip to content
WorksiteMachines

Comparison · Bulldozer

Caterpillar D6 vs Komatsu D65EX-18

The Komatsu D65EX-18 is about 3% heavier than the Caterpillar D6 (23,000 vs 22,250 kg), which usually means more stability and lifting capacity but higher transport weight.

Engine output is effectively the same on both machines.

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 D6T crawler dozer on a river project
Caterpillar Caterpillar D6
Komatsu crawler dozer working on a bypass road
Komatsu Komatsu D65EX-18
Operating weight 22,250 kg (49,100 lb)23,000 kg (50,700 lb)
Engine power 160 kW (215 hp)162 kW (217 hp)
Net power ≈160 kW (215 hp)≈162 kW (217 hp)
Blade capacity up to ≈5.6 m³ (7.3 yd³), SU blade≈5.6 m³ (7.3 yd³), Sigmadozer
Engine Cat C9.3BKomatsu SAA6D114E-6
Drive Powershift or electric drive (XE)—
Emissions EPA Tier 4 Final / EU Stage V—
Transmission —Automatic powershift with lock-up torque converter
Strengths
  • + Electric-drive D6 XE claims significantly lower fuel use
  • + Cat Grade and Assist features as factory options
  • + Huge dealer, parts and resale support
  • + 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
  • − Expensive, especially in XE form with technology
  • − Electric-drive complexity requires dealer expertise
  • − Premium pricing
  • − iMC version adds significant cost
Full D6 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.