Head to head
JCB 25Z-1 vs Kubota U17-3a
The JCB 25Z-1 has 7kW more power and is the bigger machine by 850kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the JCB 25Z-1 has 7kW more power.
- Operating weight: the JCB 25Z-1 is the bigger machine by 850kg.
- Dig depth: the JCB 25Z-1 digs 36cm (1ft) deeper.
Specifications side by side
| JCB 25Z-1 | Kubota U17-3a | |
|---|---|---|
| Operating weight | 2550 kg | 1,700kg |
| Dig depth | 2.82 m | 2,460mm |
| Engine power | 18.4 kW | 11.3kW |
| Dump height | 3 m | - |
Sources: JCB 25Z-1, Kubota U17-3a. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 25Z-1 if...
- you want one that has 7kW more power
- you want one that is the bigger machine by 850kg
- you want one that digs 36cm (1ft) deeper
Used by hire firms and small contractors for patios, drainage, footings and work next to walls and fences where a zero-tailswing machine is needed. Sits in the weight class that can be towed on a trailer in restricted regions.
Full 25Z-1 specifications →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
- Beaver Tool Hire - Isleworth, Twickenham
- Standard Plant Hire - Keston
- HG Plant Sales - Maldon, Langford
Common questions
What is the difference between the JCB 25Z-1 and the Kubota U17-3a?
The JCB 25Z-1 has 7kW more power and is the bigger machine by 850kg. The JCB 25Z-1 is a 2.5 tonne zero-tailswing mini excavator; the Kubota U17-3a is a 1.7 tonne mini excavator.
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