Head to head
Caterpillar D4K2 vs Genie Z-45/25J RT
The Caterpillar D4K2 is the bigger machine by 1,653kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D4K2 is the bigger machine by 1,653kg.
Specifications side by side
| Caterpillar D4K2 | Genie Z-45/25J RT | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 6,515kg |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | - |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Working height | - | 15.86m (51ft 6in) maximum |
| Platform height | - | 13.86m (45ft 6in) maximum |
| Platform capacity | - | 227kg unrestricted |
Sources: Caterpillar D4K2, Genie Z-45/25J RT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D4K2 if...
- you want one that is the bigger machine by 1,653kg
Cat's smallest crawler dozer, used for grading, site clearance and landscaping where a larger machine would be too heavy or too wide. The LGP undercarriage option suits soft or wet ground.
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 D4K2 and the Genie Z-45/25J RT?
The Caterpillar D4K2 is the bigger machine by 1,653kg. The Caterpillar D4K2 is a small crawler dozer; the Genie Z-45/25J RT is a rough terrain articulating boom lift.
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