Head to head
Caterpillar D3 vs Develon DX17Z-7
The Caterpillar D3 has 66kW more power and is the bigger machine by 7,452kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 66kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 7,452kg.
Specifications side by side
| Caterpillar D3 | Develon DX17Z-7 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 1,910 kg (4,211 lb) |
| Engine power | 77.6kW (104hp) | 11.9 kW (16.0 hp) at 2,400 rpm |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 2,200 mm (7 ft 3 in) |
Sources: Caterpillar D3, Develon DX17Z-7. 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 66kW more power
- you want one that is the bigger machine by 7,452kg
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 DX17Z-7 if...
The Develon DX17Z-7 is the smallest excavator in the Develon range, formerly sold as a Doosan model before the 2023 rebrand, and competes for the same confined-space and landscaping hire jobs as the JCB 8008 CTS and Kubota KX019-4. UK dealers that previously stocked it as a Doosan now sell and service it under the Develon name with the same parts and support lines. It gives hire companies a mini excavator option outside the usual Kubota, JCB and Takeuchi trio at a similar size point.
Full DX17Z-7 specifications →Common questions
What is the difference between the Caterpillar D3 and the Develon DX17Z-7?
The Caterpillar D3 has 66kW more power and is the bigger machine by 7,452kg. The Caterpillar D3 is a small crawler dozer; the Develon DX17Z-7 is a a 1.7 tonne mini excavator, Develon's smallest excavator model.
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