Head to head
Caterpillar D3 vs Mecalac 6MCR
The Mecalac 6MCR has 476kW more power. The Caterpillar D3 is the bigger machine by 3,662kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Mecalac 6MCR has 476kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 3,662kg.
Specifications side by side
| Caterpillar D3 | Mecalac 6MCR | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 5700 kg (12,600 lb) / 6100 kg (13,500 lb) |
| Engine power | 77.6kW (104hp) | 55,4 kW |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Tail swing radius | - | 1170 mm |
| Travel speed | - | 10 km/h |
Sources: Caterpillar D3, Mecalac 6MCR. 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 is the bigger machine by 3,662kg
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 6MCR if...
- you want one that has 476kW more power
A compact crawler excavator for utility trenching, landscaping and work between buildings where a 2 tonne class footprint is needed with 6 tonne digging performance. Used by groundworks and utility contractors on tight UK sites.
Full 6MCR specifications →Common questions
What is the difference between the Caterpillar D3 and the Mecalac 6MCR?
The Mecalac 6MCR has 476kW more power. The Caterpillar D3 is the bigger machine by 3,662kg. The Caterpillar D3 is a small crawler dozer; the Mecalac 6MCR is a 6 tonne crawler skid-excavator with compact tail swing.
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