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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 13 September 2026

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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