Head to head
Caterpillar D3 vs Caterpillar D6K2
The Caterpillar D6K2 is the bigger machine by 19,896kg.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Caterpillar D6K2 is the bigger machine by 19,896kg.
Specifications side by side
| Caterpillar D3 | Caterpillar D6K2 | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 29,258lb (XL) / 30,664lb (LGP) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | 4.26yd3 (XL) / 4.98yd3 (LGP) |
| Engine power | 77.6kW (104hp) | - |
| Engine | Cat C3.6 | - |
| Net power | - | Cat C4.4, 130hp |
Sources: Caterpillar D3, Caterpillar D6K2. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the D3 if...
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 D6K2 if...
- you want one that is the bigger machine by 19,896kg
A medium dozer for site grading, cut-and-fill and light earthmoving where a full-size dozer would be overkill. It is hired by groundworks and landscaping contractors needing precise grading as much as raw pushing power.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Common questions
What is the difference between the Caterpillar D3 and the Caterpillar D6K2?
The Caterpillar D6K2 is the bigger machine by 19,896kg. The Caterpillar D3 is a small crawler dozer; the Caterpillar D6K2 is a medium 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.