Head to head
Caterpillar D3 vs Kubota KX018-4
The Caterpillar D3 is a small crawler dozer. The Kubota KX018-4 is a 1.5 tonne class mini excavator.
Last reviewed 13 September 2026
Specifications side by side
| Caterpillar D3 | Kubota KX018-4 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | up to 1720kg |
| Engine power | 77.6kW (104hp) | - |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 2380mm |
| Width | - | 1300mm |
Sources: Caterpillar D3, Kubota KX018-4. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D3 if...
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 KX018-4 if...
The 1.5 tonne class is the busiest size in UK hire fleets. At 1,720kg it goes on a braked plant trailer behind a large 4x4 or pickup, and digs to 2380mm for footings, drainage runs and fence posts.
Full KX018-4 specifications →Common questions
What is the difference between the Caterpillar D3 and the Kubota KX018-4?
The Caterpillar D3 is a small crawler dozer; the Kubota KX018-4 is a 1.5 tonne class mini excavator.
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