Head to head
Caterpillar D3 vs Hitachi ZX135USB-7
The Caterpillar D3 has 4kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 4kW more power.
Specifications side by side
| Caterpillar D3 | Hitachi ZX135USB-7 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 13,800 - 16,000kg |
| Engine power | 77.6kW (104hp) | 74kW (ISO14396) / 73kW (ISO9249) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
Sources: Caterpillar D3, Hitachi ZX135USB-7. 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 4kW 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 ZX135USB-7 if...
Built for sites with tight working margins - roadside, urban and confined yards - where a swinging counterweight would foul walls, parked vehicles or passing traffic. Popular with utility and demolition contractors working close to structures.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Caterpillar D3 and the Hitachi ZX135USB-7?
The Caterpillar D3 has 4kW more power. The Caterpillar D3 is a small crawler dozer; the Hitachi ZX135USB-7 is a 13 tonne zero tail swing crawler excavator.
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