Head to head
Komatsu D51PX vs Yanmar ViO20-6
The Komatsu D51PX is the bigger machine by 12,055kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 12,055kg.
Specifications side by side
| Komatsu D51PX | Yanmar ViO20-6 | |
|---|---|---|
| Operating weight | 14,180kg | 2,125 kg (4,685 lb) (rubber track, canopy) |
| Class | 14 tonne | - |
| Dig depth | - | 2,410 mm (94.9 in) (blade down) |
| Engine power | - | 15.0 kW (20.1 hp) at 2,400 rpm |
| Overall width | - | 1,380 mm (54.3 in) |
Sources: Komatsu D51PX, Yanmar ViO20-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D51PX if...
- you want one that is the bigger machine by 12,055kg
A mid-size dozer built with wider, low ground pressure tracks for soft or wet ground. Groundworks and landfill contractors choose the PX variant over a standard-track D51 where the ground itself would otherwise bog a machine down.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
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 Komatsu D51PX and the Yanmar ViO20-6?
The Komatsu D51PX is the bigger machine by 12,055kg. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator.
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