Head to head
Caterpillar D3 vs Hitachi ZX225US-7
The Hitachi ZX225US-7 has 51kW more power.
Last reviewed 13 September 2026
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Key differences
- Engine power: the Hitachi ZX225US-7 has 51kW more power.
Specifications side by side
| Caterpillar D3 | Hitachi ZX225US-7 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 24,800 - 29,100kg |
| Engine power | 77.6kW (104hp) | 128.4kW (ISO14396) / 122kW (ISO9249) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 6,120mm |
Sources: Caterpillar D3, Hitachi ZX225US-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 ZX225US-7 if...
- you want one that has 51kW more power
For contractors working in restricted yards or alongside live structures who still need the dig performance of a 20-tonne-plus machine. The reduced tail swing keeps the counterweight closer to the tracks than a standard crawler excavator of this size.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Caterpillar D3 and the Hitachi ZX225US-7?
The Hitachi ZX225US-7 has 51kW more power. The Caterpillar D3 is a small crawler dozer; the Hitachi ZX225US-7 is a 22-29 tonne reduced-tail-swing medium excavator.
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