Head to head
Caterpillar D4K2 vs Kubota KX030-4
The Caterpillar D4K2 has 51kW more power and is the bigger machine by 5,378kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D4K2 has 51kW more power.
- Operating weight: the Caterpillar D4K2 is the bigger machine by 5,378kg.
Specifications side by side
| Caterpillar D4K2 | Kubota KX030-4 | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 2790 kg |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | 17.7 kw |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Dig depth | - | 2870 mm |
| Width | - | 1500 mm |
Sources: Caterpillar D4K2, Kubota KX030-4. 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 has 51kW more power
- you want one that is the bigger machine by 5,378kg
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 KX030-4 if...
A 3 tonne class digger for hire fleets, groundworkers and landscapers on trenching, drainage and foundation work in confined spaces. The reduced overhang helps on tight sites.
Full KX030-4 specifications →Common questions
What is the difference between the Caterpillar D4K2 and the Kubota KX030-4?
The Caterpillar D4K2 has 51kW more power and is the bigger machine by 5,378kg. The Caterpillar D4K2 is a small crawler dozer; the Kubota KX030-4 is a 2.8 tonne class mini excavator.
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