Skip to content
WorksiteMachines

Comparison · Mini excavator

Caterpillar 308 CR vs Kubota KX040-4

The Caterpillar 308 CR is about 103% heavier than the Kubota KX040-4 (8,750 vs 4,300 kg), which usually means more stability and lifting capacity but higher transport weight.

The Caterpillar 308 CR has about 70% more engine power (51 kW (68 hp) vs 30 kW (40 hp)).

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

Caterpillar 308 CR
Caterpillar Caterpillar 308 CR
Orange Kubota compact excavator working in a city park
Kubota Kubota KX040-4
Operating weight 8,750 kg (19,300 lb)4,300 kg (9,500 lb)
Engine power 51 kW (68 hp)30 kW (40 hp)
Net power ≈51 kW (69 hp)—
Max. digging depth ≈4.6 m (15 ft)≈3.5 m (11 ft 5 in)
Engine power —≈30 kW (40 hp)
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
  • + Midi performance with compact radius
  • + Cat dealer support
  • + Legendary Kubota reliability and resale value
  • + Strong, smooth hydraulics for its class
  • + Comfortable, roomy cab
  • + Simple to maintain
Watch-outs
  • − Transport needs a truck and low-loader
  • − Wider than 3-tonne class machines for tight access
  • − Needs a heavier trailer and tow vehicle than smaller minis
Full 308 CR reviewFull KX040-4 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.