Head to head
JCB Loadall 540-140 vs Komatsu D51PX
The Komatsu D51PX is the bigger machine by 3,322kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D51PX is the bigger machine by 3,322kg.
Specifications side by side
| JCB Loadall 540-140 | Komatsu D51PX | |
|---|---|---|
| Operating weight | 10,858kg | 14,180kg |
| Maximum lift height | 13.8m with stabilisers extended | - |
| Maximum forward reach | 9.25m | - |
| Maximum lift capacity | 4,000kg at ground level with stabilisers deployed | - |
| Class | - | 14 tonne |
Sources: JCB Loadall 540-140, Komatsu D51PX. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Loadall 540-140 if...
A high-reach telehandler for construction sites and larger farms that need to place material at height rather than move pallets around a yard. Lift capacity falls sharply as the boom extends, which is the number that actually governs what it can do.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the D51PX if...
- you want one that is the bigger machine by 3,322kg
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 Loadall 540-140 and the Komatsu D51PX?
The Komatsu D51PX is the bigger machine by 3,322kg. The JCB Loadall 540-140 is a telescopic handler, 4 tonne and 14m class; the Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class.
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