Head to head
Caterpillar D4K2 vs Kubota U50-5
The Caterpillar D4K2 is the bigger machine by 3,393kg and has 28kW more power.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D4K2 is the bigger machine by 3,393kg.
- Engine power: the Caterpillar D4K2 has 28kW more power.
Specifications side by side
| Caterpillar D4K2 | Kubota U50-5 | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 4,775kg |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | 40.4kW |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Dig depth | - | 3,370mm |
Sources: Caterpillar D4K2, Kubota U50-5. 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 3,393kg
- you want one that has 28kW more power
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 U50-5 if...
A mid-size mini excavator for groundworkers who need more reach and dig depth than the smaller Kubota models while still keeping a compact machine for site access. Suits drainage, footings and utility trenching.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
- Standard Plant Hire - Keston
Common questions
What is the difference between the Caterpillar D4K2 and the Kubota U50-5?
The Caterpillar D4K2 is the bigger machine by 3,393kg and has 28kW more power. The Caterpillar D4K2 is a small crawler dozer; the Kubota U50-5 is a 4.8 tonne mini excavator.
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