Head to head
Caterpillar D4K2 vs Doosan DX63-3
The Caterpillar D4K2 has 37kW more power. The Doosan DX63-3 is the bigger machine by 1,387kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D4K2 has 37kW more power.
- Operating weight: the Doosan DX63-3 is the bigger machine by 1,387kg.
Specifications side by side
| Caterpillar D4K2 | Doosan DX63-3 | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 9,555lb (4,334kg) |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | 42.6hp gross / 39.5hp net at 2200rpm |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Max dig depth | - | 10ft 6in (3.2m) |
| Bucket capacity | - | 0.19yd3 (0.145m3) |
Sources: Caterpillar D4K2, Doosan DX63-3. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D4K2 if...
- you want one that has 37kW more power
Cat's smallest crawler dozer, used for grading, site clearance and landscaping where a larger machine would be too heavy or too wide. The LGP undercarriage option suits soft or wet ground.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the DX63-3 if...
- you want one that is the bigger machine by 1,387kg
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
- Red Plant Sales Ltd - Colchester, Frating
Common questions
What is the difference between the Caterpillar D4K2 and the Doosan DX63-3?
The Caterpillar D4K2 has 37kW more power. The Doosan DX63-3 is the bigger machine by 1,387kg. The Caterpillar D4K2 is a small crawler dozer; the Doosan DX63-3 is a 6-tonne class mini excavator.
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