Head to head
Komatsu D51PX vs Kubota U27-4
The Komatsu D51PX is the bigger machine by 11,590kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 11,590kg.
Specifications side by side
| Komatsu D51PX | Kubota U27-4 | |
|---|---|---|
| Operating weight | 14,180kg | 2,590kg or 2,490kg depending on variant |
| Class | 14 tonne | - |
| Dig depth | - | 2,820mm maximum |
| Maximum reach | - | 4,740mm |
Sources: Komatsu D51PX, Kubota U27-4. 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 11,590kg
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 U27-4 if...
The step up from the KX019-4 when you need more depth and reach but still have to work close to walls and fences. Tight tail swing is what makes it usable in an occupied garden, and it is one of the most common hire machines in Britain for exactly that reason.
Listed by
- MY Tool Hire Ltd - Harrow
- Standard Plant Hire - Keston
Common questions
What is the difference between the Komatsu D51PX and the Kubota U27-4?
The Komatsu D51PX is the bigger machine by 11,590kg. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Kubota U27-4 is a tight tail swing compact excavator, around 2.5 tonnes.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.