Head to head
Caterpillar D3 vs Hitachi ZX220W-7
The Hitachi ZX220W-7 has 50kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX220W-7 has 50kW more power.
Specifications side by side
| Caterpillar D3 | Hitachi ZX220W-7 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 20,100 - 24,900kg |
| Engine power | 77.6kW (104hp) | 128kW |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 5,810 - 6,300mm |
Sources: Caterpillar D3, Hitachi ZX220W-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 ZX220W-7 if...
- you want one that has 50kW more power
Targets larger utility, sewer and civils contractors who need crawler-class digging power on a road-going wheeled chassis. It sits at the top of Hitachi's current wheeled-excavator line, giving extra reach and depth over the 170W and 145W.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Caterpillar D3 and the Hitachi ZX220W-7?
The Hitachi ZX220W-7 has 50kW more power. The Caterpillar D3 is a small crawler dozer; the Hitachi ZX220W-7 is a 20-25 tonne wheeled excavator, the largest in Hitachi's ZX-7 wheeled range.
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