Head to head
Caterpillar D6K2 vs Kubota U55-4
The Caterpillar D6K2 is the bigger machine by 23,858kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D6K2 is the bigger machine by 23,858kg.
Specifications side by side
| Caterpillar D6K2 | Kubota U55-4 | |
|---|---|---|
| Operating weight | 29,258lb (XL) / 30,664lb (LGP) | 5400kg |
| Net power | Cat C4.4, 130hp | - |
| Blade capacity | 4.26yd3 (XL) / 4.98yd3 (LGP) | - |
| Engine power | - | 46PS |
Sources: Caterpillar D6K2, Kubota U55-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D6K2 if...
- you want one that is the bigger machine by 23,858kg
A medium dozer for site grading, cut-and-fill and light earthmoving where a full-size dozer would be overkill. It is hired by groundworks and landscaping contractors needing precise grading as much as raw pushing power.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the U55-4 if...
A midi excavator for groundworks, utilities and landscaping contractors. At 5.4 tonnes it arrives on a lorry rather than behind a car.
Listed by
- Yorkshire Plant Sales - Wakefield, Leeds
Common questions
What is the difference between the Caterpillar D6K2 and the Kubota U55-4?
The Caterpillar D6K2 is the bigger machine by 23,858kg. The Caterpillar D6K2 is a medium crawler dozer; the Kubota U55-4 is a midi excavator, 3 to 6 tonnes.
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