Head to head
JCB 3T-2 vs Komatsu D51PX
The Komatsu D51PX is the bigger machine by 11,835kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 11,835kg.
Specifications side by side
| JCB 3T-2 | Komatsu D51PX | |
|---|---|---|
| Operating weight | 2345 kg | 14,180kg |
| Payload | 3000 kg | - |
| Engine power | 18.9 kW | - |
| Class | - | 14 tonne |
Sources: JCB 3T-2, Komatsu D51PX. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the 3T-2 if...
A mid-size site dumper for moving spoil, aggregate and concrete on building and landscaping sites. Common on hire fleets for groundworks where a 1 tonne or 6 tonne machine is the wrong size.
Full 3T-2 specifications →Buy or hire the D51PX if...
- you want one that is the bigger machine by 11,835kg
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
Common questions
What is the difference between the JCB 3T-2 and the Komatsu D51PX?
The Komatsu D51PX is the bigger machine by 11,835kg. The JCB 3T-2 is a 3 tonne payload site dumper with front or swivel tip; the Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class.
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