Head to head
Bobcat E55z vs Caterpillar D3
The Caterpillar D3 has 41kW more power and is the bigger machine by 4,091kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 41kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 4,091kg.
Specifications side by side
| Bobcat E55z | Caterpillar D3 | |
|---|---|---|
| Operating weight | 5271kg | 9362kg (20,640lb) |
| Engine power | 36.4kW | 77.6kW (104hp) |
| Dig depth | 3434mm | - |
| Breakout force | 30.99kN | - |
| Blade capacity | - | 2.19m3, or 2.34m3 with LGP tracks |
| Engine | - | Cat C3.6 |
Sources: Bobcat E55z, Caterpillar D3. 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 D3 if...
- you want one that has 41kW more power
- you want one that is the bigger machine by 4,091kg
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
Common questions
What is the difference between the Bobcat E55z and the Caterpillar D3?
The Caterpillar D3 has 41kW more power and is the bigger machine by 4,091kg. The Bobcat E55z is a midi excavator, zero tail swing, 3 to 6 tonnes; the Caterpillar D3 is a small crawler dozer.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.