Head to head
Komatsu D51PX vs Merlo TF42.7
The Komatsu D51PX is the bigger machine by 6,380kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 6,380kg.
Specifications side by side
| Komatsu D51PX | Merlo TF42.7 | |
|---|---|---|
| Operating weight | 14,180kg | 7800 kg |
| Class | 14 tonne | - |
| Load capacity | - | 4200 kg |
| Lifting height | - | 7 m |
| Engine power | - | 85,9 kW at 2,200 rpm |
Sources: Komatsu D51PX, Merlo TF42.7. 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 6,380kg
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 TF42.7 if...
A medium-capacity telehandler for heavier lifting on construction, agricultural and industrial sites where a 4.2 tonne capacity is needed at moderate height.
Full TF42.7 specifications →Common questions
What is the difference between the Komatsu D51PX and the Merlo TF42.7?
The Komatsu D51PX is the bigger machine by 6,380kg. The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Merlo TF42.7 is a 4.2 tonne telehandler.
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