Head to head
Caterpillar D6K LGP vs Liebherr L556 XPower
The Caterpillar D6K LGP is a low ground pressure track-type bulldozer. The Liebherr L556 XPower is a large wheel loader with xpower power-split driveline.
Last reviewed 13 September 2026

Specifications side by side
| Caterpillar D6K LGP | Liebherr L556 XPower | |
|---|---|---|
| Operating weight | 13.5 tonnes | 19,600 - 21,600 kg |
| Engine | Cat C6.6 ACERT, 97kW | - |
| Blade | 6-way blade, 3.08m front width | - |
| Track width | 760mm | - |
| Tipping load | - | 9,300 - 13,750 kg |
| Bucket capacity | - | 2.80 - 10.00 m3 |
| Rated output ISO 14396 / ECE-R.120 | - | 183 kW / 249 HP |
Sources: Caterpillar D6K LGP, Liebherr L556 XPower. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D6K LGP if...
A low ground pressure version of Cat's D6K dozer, built with wider tracks to work on soft or wet ground without sinking in. Groundworks and landfill contractors use the LGP variant over the standard D6K where the site itself, not just the job, dictates the machine.
Listed by
- Eco Plant Hire And Sales Ltd - Peterborough, Whittlesey
Buy or hire the L556 XPower if...
A large wheel loader for quarry and bulk material handling work. Liebherr's XPower driveline splits power between hydrostatic and mechanical drive to cut fuel use on repetitive load-and-carry cycles.
Listed by
- ChapmanPlant - Bristol, Iron Acton
Common questions
What is the difference between the Caterpillar D6K LGP and the Liebherr L556 XPower?
The Caterpillar D6K LGP is a low ground pressure track-type bulldozer; the Liebherr L556 XPower is a large wheel loader with XPower power-split driveline.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.
