Head to head
Caterpillar D6K2 vs Hitachi 33U
The Caterpillar D6K2 is the bigger machine by 25,771kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D6K2 is the bigger machine by 25,771kg.
Specifications side by side
| Caterpillar D6K2 | Hitachi 33U | |
|---|---|---|
| Operating weight | 29,258lb (XL) / 30,664lb (LGP) | 3,487 kg |
| Net power | Cat C4.4, 130hp | - |
| Blade capacity | 4.26yd3 (XL) / 4.98yd3 (LGP) | - |
| Width | - | 1,550 mm |
| Rated power ISO 9249 | - | 21.2 kW (28.4 HP) at 2,400 min-1 (rpm) (net) |
| Fuel tank | - | 42.0 L |
Sources: Caterpillar D6K2, Hitachi 33U. 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 25,771kg
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 33U if...
A compact tracked excavator from Hitachi's smaller size class, used for groundworks, drainage and landscaping jobs too tight for a larger machine. It is bought and sold through the used plant market rather than as a current Hitachi catalogue model.
Listed by
- Plant Sales Northern Ireland | P & A Plant Sales - Ballynahinch
Common questions
What is the difference between the Caterpillar D6K2 and the Hitachi 33U?
The Caterpillar D6K2 is the bigger machine by 25,771kg. The Caterpillar D6K2 is a medium crawler dozer; the Hitachi 33U is a mini excavator, approximately 3 tonne class.
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