Head to head
Kubota KX037-4 vs Yanmar ViO20-6
The Kubota KX037-4 is the bigger machine by 1,393kg and digs 1.0m (3.5ft) deeper.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Kubota KX037-4 is the bigger machine by 1,393kg.
- Dig depth: the Kubota KX037-4 digs 1.0m (3.5ft) deeper.
- Engine power: the Kubota KX037-4 has 3kW more power.
Specifications side by side
| Kubota KX037-4 | Yanmar ViO20-6 | |
|---|---|---|
| Operating weight | 3518 kg | 2,125 kg (4,685 lb) (rubber track, canopy) |
| Dig depth | 3410 mm | 2,410 mm (94.9 in) (blade down) |
| Engine power | 17.8 kw | 15.0 kW (20.1 hp) at 2,400 rpm |
| Width | 1550 mm | - |
| Overall width | - | 1,380 mm (54.3 in) |
Sources: Kubota KX037-4, Yanmar ViO20-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the KX037-4 if...
- you want one that is the bigger machine by 1,393kg
- you want one that digs 1.0m (3.5ft) deeper
- you want one that has 3kW more power
A 3.5 tonne class digger used by groundworkers, utility contractors and hire fleets for trenching, foundations and landscaping. Suits sites that need more reach and lift than a 3 tonne machine.
Full KX037-4 specifications →Buy or hire the ViO20-6 if...
The Yanmar ViO20-6 steps up from the ViO17 into the roughly 2 tonne mini excavator class, still with Yanmar's true zero tail swing geometry for working in confined spaces. It competes with the Caterpillar 301.7 CR and similarly sized Kubota and Takeuchi machines for UK groundworks and utility hire jobs. Its fixed rather than variable undercarriage keeps the design simpler than some rivals, at the cost of not being able to narrow down for transport.
Full ViO20-6 specifications →Common questions
What is the difference between the Kubota KX037-4 and the Yanmar ViO20-6?
The Kubota KX037-4 is the bigger machine by 1,393kg and digs 1.0m (3.5ft) deeper. The Kubota KX037-4 is a 3.5 tonne class mini excavator; the Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator.
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