Head to head
Caterpillar D4K2 vs Kubota U17-3a
The Caterpillar D4K2 has 57kW more power and is the bigger machine by 6,468kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D4K2 has 57kW more power.
- Operating weight: the Caterpillar D4K2 is the bigger machine by 6,468kg.
Specifications side by side
| Caterpillar D4K2 | Kubota U17-3a | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 1,700kg |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | 11.3kW |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Dig depth | - | 2,460mm |
Sources: Caterpillar D4K2, Kubota U17-3a. 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 57kW more power
- you want one that is the bigger machine by 6,468kg
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 U17-3a if...
A step up from a micro excavator for landscaping and groundworks contractors who need more dig depth and breakout force while still fitting through a standard gate or gap. Common on garden and small drainage jobs.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
- Compact Plant Sales - Farnham
- Beaver Tool Hire - Isleworth, Twickenham
- Standard Plant Hire - Keston
- HG Plant Sales - Maldon, Langford
Common questions
What is the difference between the Caterpillar D4K2 and the Kubota U17-3a?
The Caterpillar D4K2 has 57kW more power and is the bigger machine by 6,468kg. The Caterpillar D4K2 is a small crawler dozer; the Kubota U17-3a is a 1.7 tonne mini excavator.
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