Head to head
Caterpillar 301.7 CR vs Yanmar ViO57-6B
The Yanmar ViO57-6B has 319kW more power and is the bigger machine by 3,570kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Yanmar ViO57-6B has 319kW more power.
- Operating weight: the Yanmar ViO57-6B is the bigger machine by 3,570kg.
Specifications side by side
| Caterpillar 301.7 CR | Yanmar ViO57-6B | |
|---|---|---|
| Operating weight | 1,915 kg (4,222 lb) | 5485 kg |
| Engine power | 15.7 kW (21 hp) | 33,5 kW (at 2200 rpm) |
| Dig depth | 2,540 mm (100 in) (long stick) | - |
| Breakout force | - | 41,9 kN |
| Fuel tank | - | 66 l |
Sources: Caterpillar 301.7 CR, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 301.7 CR if...
The Cat 301.7 CR is Caterpillar's roughly 2 tonne mini excavator, built around the Cat C1.1 engine and backed by Caterpillar's dealer network for parts and service. It is specified on UK sites for the same drainage, groundworks and utility jobs as the Kubota U27-4 and Takeuchi TB216, with buyers often citing Cat's residual values and dealer support over price. It is one of the smaller models in Caterpillar's wider mini excavator line-up, which extends up to around 10 tonnes.
Full 301.7 CR specifications →Buy or hire the ViO57-6B if...
- you want one that has 319kW more power
- you want one that is the bigger machine by 3,570kg
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 301.7 CR and the Yanmar ViO57-6B?
The Yanmar ViO57-6B has 319kW more power and is the bigger machine by 3,570kg. The Caterpillar 301.7 CR is a a sub-2 tonne conventional-tail-swing mini excavator; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.
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