Head to head
Bobcat E55z vs Caterpillar D4K2
The Caterpillar D4K2 has 32kW more power and is the bigger machine by 2,897kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D4K2 has 32kW more power.
- Operating weight: the Caterpillar D4K2 is the bigger machine by 2,897kg.
Specifications side by side
| Bobcat E55z | Caterpillar D4K2 | |
|---|---|---|
| Operating weight | 5271kg | 8,168kg (XL) / 8,476kg (LGP) |
| Engine power | 36.4kW | 92hp (68.8kW), Cat C4.4 ACERT |
| Dig depth | 3434mm | - |
| Breakout force | 30.99kN | - |
| Blade capacity | - | 1.98m3 (XL) / 1.85m3 (LGP) |
| Ground pressure | - | 38.6kPa (XL) / 29.2kPa (LGP) |
Sources: Bobcat E55z, Caterpillar D4K2. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the E55z if...
A midi excavator for groundworks, utilities and landscaping contractors. At 5.3 tonnes it arrives on a lorry rather than behind a car. It digs to 3434mm. Zero tail swing means the back of the machine stays inside the tracks when it slews, so it can work tight against a wall or in one lane of a road.
Listed by
Buy or hire the D4K2 if...
- you want one that has 32kW more power
- you want one that is the bigger machine by 2,897kg
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
Common questions
What is the difference between the Bobcat E55z and the Caterpillar D4K2?
The Caterpillar D4K2 has 32kW more power and is the bigger machine by 2,897kg. The Bobcat E55z is a midi excavator, zero tail swing, 3 to 6 tonnes; the Caterpillar D4K2 is a small crawler dozer.
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