Head to head
Caterpillar D3 vs Hitachi ZX75US-5
The Caterpillar D3 has 35kW more power and is the bigger machine by 632kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 35kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 632kg.
Specifications side by side
| Caterpillar D3 | Hitachi ZX75US-5 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 8730kg (19,244lb) |
| Engine power | 77.6kW (104hp) | 42.4kW (56.9hp) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Max digging depth | - | 4.61m (15'1") |
Sources: Caterpillar D3, Hitachi ZX75US-5. 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
- you want one that is the bigger machine by 632kg
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 ZX75US-5 if...
A 7-8 tonne excavator with a reduced tail swing radius, letting it work close to walls and in restricted urban sites. A common size in UK plant hire fleets for groundworks and drainage.
Listed by
- Red Plant Sales Ltd - Colchester, Frating
Common questions
What is the difference between the Caterpillar D3 and the Hitachi ZX75US-5?
The Caterpillar D3 has 35kW more power and is the bigger machine by 632kg. The Caterpillar D3 is a small crawler dozer; the Hitachi ZX75US-5 is a reduced tail swing excavator.
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