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Komatsu D51PX vs Wacker Neuson ET18

The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class. The Wacker Neuson ET18 is a 1.5 tonne class mini excavator.

Last reviewed 13 September 2026

D51PX
Komatsu D51PX
Wacker Neuson ET18
Wacker Neuson ET18 - image: wackerneuson.co.uk

Specifications side by side

Komatsu D51PXWacker Neuson ET18
Operating weight14,180kg1,725 to 2,405 kg
Class14 tonne-
Breakout force-18.8 kN
Length-3,854 mm
Dig depth-2,402 mm
Width-990 mm
Height-2,289 mm
Engine power-13.8 kW

Sources: Komatsu D51PX, Wacker Neuson ET18. 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.

Listed by

Full D51PX specifications →

Buy or hire the ET18 if...

The 1.5 tonne class is the busiest size in UK hire fleets. At 1,725kg it digs to 2,402 mm for footings, drainage runs and fence posts.

Listed by

Full ET18 specifications →

Common questions

What is the difference between the Komatsu D51PX and the Wacker Neuson ET18?

The Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class; the Wacker Neuson ET18 is a 1.5 tonne class mini excavator.

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