Head to head
Caterpillar D4K2 vs Hitachi ZX145W-6
The Hitachi ZX145W-6 has 36kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX145W-6 has 36kW more power.
Specifications side by side
| Caterpillar D4K2 | Hitachi ZX145W-6 | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 15,000 - 17,200kg |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | 105kW (ISO14396) |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Dig depth | - | 5,520 - 5,770mm |
Sources: Caterpillar D4K2, Hitachi ZX145W-6. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D4K2 if...
Cat's smallest crawler dozer, used for grading, site clearance and landscaping where a larger machine would be too heavy or too wide. The LGP undercarriage option suits soft or wet ground.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the ZX145W-6 if...
- you want one that has 36kW more power
Suits municipal and utility contractors who need a mobile, road-going digger for drainage and reinstatement work spread across several sites in a day. The wheeled undercarriage trades some stability for speed between jobs.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Common questions
What is the difference between the Caterpillar D4K2 and the Hitachi ZX145W-6?
The Hitachi ZX145W-6 has 36kW more power. The Caterpillar D4K2 is a small crawler dozer; the Hitachi ZX145W-6 is a 14-17 tonne wheeled excavator.
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