Head to head
Komatsu D65PX vs Kubota U55-4
The Komatsu D65PX has 121kW more power and is the bigger machine by 15.6 tonnes.
Last reviewed 13 September 2026
Key differences
- Engine power: the Komatsu D65PX has 121kW more power.
- Operating weight: the Komatsu D65PX is the bigger machine by 15.6 tonnes.
Specifications side by side
| Komatsu D65PX | Kubota U55-4 | |
|---|---|---|
| Operating weight | 21,000kg | 5400kg |
| Engine power | 155kW (208hp) at 1950rpm | 46PS |
| Blade capacity | 3.69m3 (straight tilt dozer) | - |
Sources: Komatsu D65PX, Kubota U55-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D65PX if...
- you want one that has 121kW more power
- you want one that is the bigger machine by 15.6 tonnes
The wide-track, low ground pressure version of Komatsu's D65 dozer, used on soft or sensitive ground where a standard-track machine would sink or damage the surface, such as landfill and reclamation work.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the U55-4 if...
A midi excavator for groundworks, utilities and landscaping contractors. At 5.4 tonnes it arrives on a lorry rather than behind a car.
Listed by
- Yorkshire Plant Sales - Wakefield, Leeds
Common questions
What is the difference between the Komatsu D65PX and the Kubota U55-4?
The Komatsu D65PX has 121kW more power and is the bigger machine by 15.6 tonnes. The Komatsu D65PX is a mid-size low ground pressure crawler dozer; the Kubota U55-4 is a midi excavator, 3 to 6 tonnes.
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