Head to head
Hitachi ZX85USB-6 vs Kubota U17-3a
The Hitachi ZX85USB-6 is the bigger machine by 6,730kg and has 31kW more power.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Hitachi ZX85USB-6 is the bigger machine by 6,730kg.
- Engine power: the Hitachi ZX85USB-6 has 31kW more power.
Specifications side by side
| Hitachi ZX85USB-6 | Kubota U17-3a | |
|---|---|---|
| Operating weight | 8,430 - 9,060kg | 1,700kg |
| Dig depth | 3,910 - 4,510mm | 2,460mm |
| Engine power | 42.4kW | 11.3kW |
Sources: Hitachi ZX85USB-6, Kubota U17-3a. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX85USB-6 if...
- you want one that is the bigger machine by 6,730kg
- you want one that has 31kW more power
A popular hire-fleet size for groundworkers and utility contractors who need more reach and dig depth than a mini excavator but still want a zero-swing tail for working close to walls and other plant. Common on drainage and footing jobs on housing sites.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the U17-3a if...
A step up from a micro excavator for landscaping and groundworks contractors who need more dig depth and breakout force while still fitting through a standard gate or gap. Common on garden and small drainage jobs.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
- Compact Plant Sales - Farnham
- Standard Plant Hire - Keston
Common questions
What is the difference between the Hitachi ZX85USB-6 and the Kubota U17-3a?
The Hitachi ZX85USB-6 is the bigger machine by 6,730kg and has 31kW more power. The Hitachi ZX85USB-6 is a 8.4-9.1 tonne zero tail swing crawler excavator; the Kubota U17-3a is a 1.7 tonne mini excavator.
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