Head to head
Komatsu D51PX vs Kubota KX019-4
The Komatsu D51PX is the bigger machine by 12.4 tonnes.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 12.4 tonnes.
Specifications side by side
| Komatsu D51PX | Kubota KX019-4 | |
|---|---|---|
| Operating weight | 14,180kg | 1,780kg with cab, 1,680kg with canopy |
| Class | 14 tonne | - |
| Dig depth | - | 2,580mm maximum |
| Maximum reach | - | 4,070mm |
Sources: Komatsu D51PX, Kubota KX019-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D51PX if...
- you want one that is the bigger machine by 12.4 tonnes
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 KX019-4 if...
Chosen as much for what it weighs as for what it digs: under two tonnes means it can go on a modest plant trailer behind a light vehicle, which removes the transport problem that decides many small jobs. Very common in UK hire fleets for garden and trenching work.
Full KX019-4 specifications →Common questions
What is the difference between the Komatsu D51PX and the Kubota KX019-4?
The Komatsu D51PX is the bigger machine by 12.4 tonnes. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Kubota KX019-4 is a sub-2 tonne mini excavator.
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