Head to head
Caterpillar D3 vs Doosan DX63-3
The Caterpillar D3 has 46kW more power. The Doosan DX63-3 is the bigger machine by 193kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 46kW more power.
- Operating weight: the Doosan DX63-3 is the bigger machine by 193kg.
Specifications side by side
| Caterpillar D3 | Doosan DX63-3 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 9,555lb (4,334kg) |
| Engine power | 77.6kW (104hp) | 42.6hp gross / 39.5hp net at 2200rpm |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Max dig depth | - | 10ft 6in (3.2m) |
| Bucket capacity | - | 0.19yd3 (0.145m3) |
Sources: Caterpillar D3, Doosan DX63-3. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D3 if...
- you want one that has 46kW more power
Caterpillar's smallest crawler dozer, used for fine grading, landscaping and confined-site work where a full-size dozer won't fit. Common in UK plant hire fleets alongside mini excavators.
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 193kg
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 D3 and the Doosan DX63-3?
The Caterpillar D3 has 46kW more power. The Doosan DX63-3 is the bigger machine by 193kg. The Caterpillar D3 is a small crawler dozer; the Doosan DX63-3 is a 6-tonne class mini excavator.
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