Head to head
Genie Z-45/25J RT vs Kubota U55-4
The Genie Z-45/25J RT is the bigger machine by 1,115kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Genie Z-45/25J RT is the bigger machine by 1,115kg.
Specifications side by side
| Genie Z-45/25J RT | Kubota U55-4 | |
|---|---|---|
| Operating weight | 6,515kg | 5400kg |
| Working height | 15.86m (51ft 6in) maximum | - |
| Platform height | 13.86m (45ft 6in) maximum | - |
| Platform capacity | 227kg unrestricted | - |
| Engine power | - | 46PS |
Sources: Genie Z-45/25J RT, Kubota U55-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Z-45/25J RT if...
- you want one that is the bigger machine by 1,115kg
A widely hired rough-terrain boom for construction and outdoor maintenance. The articulating up-and-over jib is what separates it from a straight telescopic boom: it reaches over an obstacle rather than only to it, which is often the entire requirement.
Full Z-45/25J RT specifications →Buy or hire the U55-4 if...
A midi excavator for groundworks, utilities and landscaping contractors. At 5.4 tonnes it arrives on a lorry rather than behind a car.
Full U55-4 specifications →Common questions
What is the difference between the Genie Z-45/25J RT and the Kubota U55-4?
The Genie Z-45/25J RT is the bigger machine by 1,115kg. The Genie Z-45/25J RT is a rough terrain articulating boom lift; the Kubota U55-4 is a midi excavator, 3 to 6 tonnes.
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