Head to head
Caterpillar D3 vs Hitachi ZX135W-7
The Hitachi ZX135W-7 has 27kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX135W-7 has 27kW more power.
Specifications side by side
| Caterpillar D3 | Hitachi ZX135W-7 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 14,500 - 15,900kg |
| Engine power | 77.6kW (104hp) | 105kW (ISO14396) / 100kW (ISO9249) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
Sources: Caterpillar D3, Hitachi ZX135W-7. 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 ZX135W-7 if...
- you want one that has 27kW more power
A road-legal wheeled excavator for contractors who need to self-drive between sites without a low-loader, such as utilities and highways crews. The short-tail-swing design keeps it usable on narrow verges and in traffic-managed lanes.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Caterpillar D3 and the Hitachi ZX135W-7?
The Hitachi ZX135W-7 has 27kW more power. The Caterpillar D3 is a small crawler dozer; the Hitachi ZX135W-7 is a 13-16 tonne short-tail wheeled excavator.
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