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Head to head

Caterpillar D6K2 vs Doosan DX63-3

The Caterpillar D6K2 is the bigger machine by 19,703kg.

Last reviewed 13 September 2026

Key differences

Specifications side by side

Caterpillar D6K2Doosan DX63-3
Operating weight29,258lb (XL) / 30,664lb (LGP)9,555lb (4,334kg)
Net powerCat C4.4, 130hp-
Blade capacity4.26yd3 (XL) / 4.98yd3 (LGP)-
Engine power-42.6hp gross / 39.5hp net at 2200rpm
Max dig depth-10ft 6in (3.2m)
Bucket capacity-0.19yd3 (0.145m3)

Sources: Caterpillar D6K2, Doosan DX63-3. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the D6K2 if...

  • you want one that is the bigger machine by 19,703kg

A medium dozer for site grading, cut-and-fill and light earthmoving where a full-size dozer would be overkill. It is hired by groundworks and landscaping contractors needing precise grading as much as raw pushing power.

Listed by

Full D6K2 specifications →

Buy or hire the DX63-3 if...

A compact excavator for utility, drainage and small groundworks jobs, sized to fit through a standard gateway. It suits contractors who need real digging depth without the weight and cost of a bigger machine.

Listed by

Full DX63-3 specifications →

Common questions

What is the difference between the Caterpillar D6K2 and the Doosan DX63-3?

The Caterpillar D6K2 is the bigger machine by 19,703kg. The Caterpillar D6K2 is a medium crawler dozer; the Doosan DX63-3 is a 6-tonne class mini excavator.

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.