Head to head
Caterpillar D3 vs Genie Z-45/25J RT
The Caterpillar D3 is the bigger machine by 2,847kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D3 is the bigger machine by 2,847kg.
Specifications side by side
| Caterpillar D3 | Genie Z-45/25J RT | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 6,515kg |
| Engine power | 77.6kW (104hp) | - |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Working height | - | 15.86m (51ft 6in) maximum |
| Platform height | - | 13.86m (45ft 6in) maximum |
| Platform capacity | - | 227kg unrestricted |
Sources: Caterpillar D3, Genie Z-45/25J RT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D3 if...
- you want one that is the bigger machine by 2,847kg
Caterpillar's smallest crawler dozer, used for fine grading, landscaping and confined-site work where a full-size dozer won't fit. Common in UK plant hire fleets alongside mini excavators.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the Z-45/25J RT if...
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 →Common questions
What is the difference between the Caterpillar D3 and the Genie Z-45/25J RT?
The Caterpillar D3 is the bigger machine by 2,847kg. The Caterpillar D3 is a small crawler dozer; the Genie Z-45/25J RT is a rough terrain articulating boom lift.
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