Head to head
Komatsu D51PX vs Komatsu D65PX
The Komatsu D65PX is the bigger machine by 6,820kg.
Last reviewed 9 November 2026
Key differences
- Operating weight: the Komatsu D65PX is the bigger machine by 6,820kg.
Specifications side by side
| Komatsu D51PX | Komatsu D65PX | |
|---|---|---|
| Operating weight | 14,180kg | 21,000kg |
| Class | 14 tonne | - |
| Engine power | - | 155kW (208hp) at 1950rpm |
| Blade capacity | - | 3.69m3 (straight tilt dozer) |
Sources: Komatsu D51PX, Komatsu D65PX. 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.
Full D51PX specifications →Buy or hire the D65PX if...
- you want one that is the bigger machine by 6,820kg
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.
Full D65PX specifications →Common questions
What is the difference between the Komatsu D51PX and the Komatsu D65PX?
The Komatsu D65PX is the bigger machine by 6,820kg. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Komatsu D65PX is a mid-size low ground pressure crawler dozer.
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.