Head to head
Caterpillar D3 vs Yanmar ViO57-6B
The Yanmar ViO57-6B has 257kW more power. The Caterpillar D3 is the bigger machine by 3,877kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Yanmar ViO57-6B has 257kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 3,877kg.
Specifications side by side
| Caterpillar D3 | Yanmar ViO57-6B | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 5485 kg |
| Engine power | 77.6kW (104hp) | 33,5 kW (at 2200 rpm) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Breakout force | - | 41,9 kN |
| Fuel tank | - | 66 l |
Sources: Caterpillar D3, Yanmar ViO57-6B. 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 is the bigger machine by 3,877kg
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 ViO57-6B if...
- you want one that has 257kW more power
A 5 to 6 tonne zero-tail swing digger for civils and groundworks contractors on deeper trenching, pipe laying and loading. Hire fleets use it where space is tight but a bigger machine is needed.
Full ViO57-6B specifications →Common questions
What is the difference between the Caterpillar D3 and the Yanmar ViO57-6B?
The Yanmar ViO57-6B has 257kW more power. The Caterpillar D3 is the bigger machine by 3,877kg. The Caterpillar D3 is a small crawler dozer; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.
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