Head to head
Komatsu D51PX vs Kubota KX018-4
The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class. The Kubota KX018-4 is a 1.5 tonne class mini excavator.
Last reviewed 13 September 2026
Specifications side by side
| Komatsu D51PX | Kubota KX018-4 | |
|---|---|---|
| Operating weight | 14,180kg | up to 1720kg |
| Class | 14 tonne | - |
| Dig depth | - | 2380mm |
| Width | - | 1300mm |
Sources: Komatsu D51PX, Kubota KX018-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D51PX if...
A mid-size dozer built with wider, low ground pressure tracks for soft or wet ground. Groundworks and landfill contractors choose the PX variant over a standard-track D51 where the ground itself would otherwise bog a machine down.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the KX018-4 if...
The 1.5 tonne class is the busiest size in UK hire fleets. At 1,720kg it goes on a braked plant trailer behind a large 4x4 or pickup, and digs to 2380mm for footings, drainage runs and fence posts.
Full KX018-4 specifications →Common questions
What is the difference between the Komatsu D51PX and the Kubota KX018-4?
The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Kubota KX018-4 is a 1.5 tonne class mini excavator.
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