Head to head
Caterpillar D4K2 vs Niftylift HR15 4x4
The Caterpillar D4K2 is the bigger machine by 3,668kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D4K2 is the bigger machine by 3,668kg.
Specifications side by side
| Caterpillar D4K2 | Niftylift HR15 4x4 | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 4,500kg diesel, 4,800kg hybrid, stated as minimum |
| 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 | - | 15.7m (51ft 6in) |
| Working outreach | - | 9.4m (31ft) |
| Platform capacity | - | 225kg |
Sources: Caterpillar D4K2, Niftylift HR15 4x4. 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 3,668kg
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 HR15 4x4 if...
A British-built boom lift favoured by hire fleets for its narrow 2m width and tight turning circle, which let it reach working heights that normally require a much larger machine on a more constrained site. The flexible boom design allows working up and over obstacles.
Full HR15 4x4 specifications →Common questions
What is the difference between the Caterpillar D4K2 and the Niftylift HR15 4x4?
The Caterpillar D4K2 is the bigger machine by 3,668kg. The Caterpillar D4K2 is a small crawler dozer; the Niftylift HR15 4x4 is a self-propelled articulating boom lift.
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