Head to head
Caterpillar D3 vs Yanmar ViO20-6
The Caterpillar D3 has 63kW more power and is the bigger machine by 7,237kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 63kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 7,237kg.
Specifications side by side
| Caterpillar D3 | Yanmar ViO20-6 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 2,125 kg (4,685 lb) (rubber track, canopy) |
| Engine power | 77.6kW (104hp) | 15.0 kW (20.1 hp) at 2,400 rpm |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 2,410 mm (94.9 in) (blade down) |
| Overall width | - | 1,380 mm (54.3 in) |
Sources: Caterpillar D3, Yanmar ViO20-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D3 if...
- you want one that has 63kW more power
- you want one that is the bigger machine by 7,237kg
Caterpillar's smallest crawler dozer, used for fine grading, landscaping and confined-site work where a full-size dozer won't fit. Common in UK plant hire fleets alongside mini excavators.
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 Caterpillar D3 and the Yanmar ViO20-6?
The Caterpillar D3 has 63kW more power and is the bigger machine by 7,237kg. The Caterpillar D3 is a small crawler dozer; the Yanmar ViO20-6 is a a 2.0-2.1 tonne true zero tail swing mini excavator.
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