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Head to head

Kubota U27-4 vs Yanmar ViO57-6B

The Yanmar ViO57-6B is the bigger machine by 2,895kg.

Last reviewed 13 September 2026

Kubota U27-4
Kubota U27-4 - image: kuk.kubota-eu.com
Yanmar ViO57-6B
Yanmar ViO57-6B - image: Field & Forest Machinery Ltd

Key differences

Specifications side by side

Kubota U27-4Yanmar ViO57-6B
Operating weight2,590kg or 2,490kg depending on variant5485 kg
Dig depth2,820mm maximum-
Maximum reach4,740mm-
Engine power-33,5 kW (at 2200 rpm)
Breakout force-41,9 kN
Fuel tank-66 l

Sources: Kubota U27-4, Yanmar ViO57-6B. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the U27-4 if...

The step up from the KX019-4 when you need more depth and reach but still have to work close to walls and fences. Tight tail swing is what makes it usable in an occupied garden, and it is one of the most common hire machines in Britain for exactly that reason.

Listed by

Full U27-4 specifications →

Buy or hire the ViO57-6B if...

  • you want one that is the bigger machine by 2,895kg

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 Kubota U27-4 and the Yanmar ViO57-6B?

The Yanmar ViO57-6B is the bigger machine by 2,895kg. The Kubota U27-4 is a tight tail swing compact excavator, around 2.5 tonnes; the Yanmar ViO57-6B is a 5.5 tonne zero-tail mini excavator.

GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.