Skip to content
WorksiteMachines

Comparison · Mini excavator

Kubota KX040-4 vs Yanmar ViO57-6

The Yanmar ViO57-6 is about 30% heavier than the Kubota KX040-4 (5,600 vs 4,300 kg), which usually means more stability and lifting capacity but higher transport weight.

The Kubota KX040-4 has about 7% more engine power (30 kW (40 hp) vs 28 kW (38 hp)).

Beyond the numbers, compare local dealer support, parts availability and resale value for Kubota and Yanmar in your region: over the life of a machine they often matter more than small specification differences.

Orange Kubota compact excavator working in a city park
Kubota Kubota KX040-4
Yanmar ViO57-6 compact excavator
Yanmar Yanmar ViO57-6
Operating weight 4,300 kg (9,500 lb)5,600 kg (12,300 lb)
Engine power 30 kW (40 hp)28 kW (38 hp)
Engine power ≈30 kW (40 hp)≈28 kW (38 hp)
Max. digging depth ≈3.5 m (11 ft 5 in)≈3.8 m (12 ft 6 in)
Engine Kubota V2607 diesel—
Tail swing Minimal tail swing—
Width ≈1.95 m (6 ft 5 in)—
Travel speed ≈2.9 / 4.8 km/h (1.8 / 3.0 mph)—
Strengths
  • + Legendary Kubota reliability and resale value
  • + Strong, smooth hydraulics for its class
  • + Comfortable, roomy cab
  • + Simple to maintain
  • + Zero tail swing at 5.5 tonnes
  • + Comfortable cab
Watch-outs
  • − Wider than 3-tonne class machines for tight access
  • − Needs a heavier trailer and tow vehicle than smaller minis
  • − Heavier transport
Full KX040-4 reviewFull ViO57-6 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.