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Comparison · Wheel tractor scraper

Caterpillar 621K vs Caterpillar 623K

Wheel tractor-scraper working on a levee
Caterpillar Caterpillar 621K
Caterpillar Caterpillar 623K
Operating weight ——
Engine power ——
Heaped capacity ≈18 m³ (24 yd³)≈17.6 m³ (23 yd³)
Rated load ≈22,000 kg (48,500 lb)—
Engine Cat C13—
Configuration Single engine, open bowlElevating, single engine
Strengths
  • + Versatile mid-size capacity
  • + Lower cost than twin-engine models
  • + Cat dealer support
  • + No push tractor needed
  • + Good in finish work
Watch-outs
  • − Needs a push dozer to load fully
  • − Not suited to rocky material
Full 621K reviewFull 623K 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.