Head to head
Caterpillar D3 vs Hitachi ZX85USB-6
The Caterpillar D3 has 35kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 35kW more power.
Specifications side by side
| Caterpillar D3 | Hitachi ZX85USB-6 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 8,430 - 9,060kg |
| Engine power | 77.6kW (104hp) | 42.4kW |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 3,910 - 4,510mm |
Sources: Caterpillar D3, Hitachi ZX85USB-6. 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 35kW 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 ZX85USB-6 if...
A popular hire-fleet size for groundworkers and utility contractors who need more reach and dig depth than a mini excavator but still want a zero-swing tail for working close to walls and other plant. Common on drainage and footing jobs on housing sites.
Listed by
- Red Plant Sales Ltd - Colchester, Frating
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Caterpillar D3 and the Hitachi ZX85USB-6?
The Caterpillar D3 has 35kW more power. The Caterpillar D3 is a small crawler dozer; the Hitachi ZX85USB-6 is a 8.4-9.1 tonne zero tail swing crawler excavator.
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