Head to head
Komatsu D51PX vs Kubota U50-5
The Komatsu D51PX is the bigger machine by 9,405kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 9,405kg.
Specifications side by side
| Komatsu D51PX | Kubota U50-5 | |
|---|---|---|
| Operating weight | 14,180kg | 4,775kg |
| Class | 14 tonne | - |
| Dig depth | - | 3,370mm |
| Engine power | - | 40.4kW |
Sources: Komatsu D51PX, Kubota U50-5. 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 9,405kg
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 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 Komatsu D51PX and the Kubota U50-5?
The Komatsu D51PX is the bigger machine by 9,405kg. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Kubota U50-5 is a 4.8 tonne mini excavator.
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