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Head to head

Caterpillar D6T LGP vs Komatsu D51PX

The Caterpillar D6T LGP is the bigger machine by 36,788kg.

Last reviewed 9 November 2026

Caterpillar D6T LGP
Caterpillar D6T LGP - image: Joost J. Bakker from IJmuiden, CC BY 2.0, via Wikimedia Commons
Komatsu D51PX
Komatsu D51PX - image: Komatsu

Key differences

Specifications side by side

Caterpillar D6T LGPKomatsu D51PX
Operating weight50,968lb (23,119kg)14,180kg
EngineCat C9.3 ACERT, 215hp net / 228hp gross-
Blade capacity4.90yd3 (3.75m3), 13.4ft wide, 47in tall-
Ground pressure6.4psi-
Class-14 tonne

Sources: Caterpillar D6T LGP, Komatsu D51PX. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the D6T LGP if...

  • you want one that is the bigger machine by 36,788kg

A mid-size dozer used for bulk earthmoving, site clearance and grading on larger construction and quarry sites. The LGP variant's wider tracks let it work on soft or wet ground where a standard D6T would sink or lose traction.

Listed by

Full D6T LGP specifications →

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 →

Common questions

What is the difference between the Caterpillar D6T LGP and the Komatsu D51PX?

The Caterpillar D6T LGP is the bigger machine by 36,788kg. The Caterpillar D6T LGP is a medium low ground pressure crawler dozer; the Komatsu D51PX is a low ground pressure crawler dozer, 14 tonne class.

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