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Comparison · Bulldozer

Caterpillar D4 vs Caterpillar D6

The Caterpillar D6 is about 71% heavier than the Caterpillar D4 (22,250 vs 13,000 kg), which usually means more stability and lifting capacity but higher transport weight.

The Caterpillar D6 has about 65% more engine power (160 kW (215 hp) vs 97 kW (130 hp)).

Caterpillar Caterpillar D4
Caterpillar D6T crawler dozer on a river project
Caterpillar Caterpillar D6
Operating weight 13,000 kg (28,700 lb)22,250 kg (49,100 lb)
Engine power 97 kW (130 hp)160 kW (215 hp)
Net power ≈97 kW (130 hp)≈160 kW (215 hp)
Blade capacity —up to ≈5.6 m³ (7.3 yd³), SU blade
Engine —Cat C9.3B
Drive —Powershift or electric drive (XE)
Emissions —EPA Tier 4 Final / EU Stage V
Strengths
  • + Versatile size
  • + Cat Grade options
  • + Electric-drive D6 XE claims significantly lower fuel use
  • + Cat Grade and Assist features as factory options
  • + Huge dealer, parts and resale support
Watch-outs
  • − Heavier transport than small dozers
  • − Expensive, especially in XE form with technology
  • − Electric-drive complexity requires dealer expertise
Full D4 reviewFull D6 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.