Head to head
Caterpillar D3 vs Komatsu D65PX
The Komatsu D65PX is the bigger machine by 11,638kg and has 77kW more power.
Last reviewed 13 September 2026
Key differences
- Operating weight: the Komatsu D65PX is the bigger machine by 11,638kg.
- Engine power: the Komatsu D65PX has 77kW more power.
Specifications side by side
| Caterpillar D3 | Komatsu D65PX | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 21,000kg |
| Engine power | 77.6kW (104hp) | 155kW (208hp) at 1950rpm |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | 3.69m3 (straight tilt dozer) |
| Engine | Cat C3.6 | - |
Sources: Caterpillar D3, Komatsu D65PX. 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 D65PX if...
- you want one that is the bigger machine by 11,638kg
- you want one that has 77kW more power
The wide-track, low ground pressure version of Komatsu's D65 dozer, used on soft or sensitive ground where a standard-track machine would sink or damage the surface, such as landfill and reclamation work.
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 Komatsu D65PX?
The Komatsu D65PX is the bigger machine by 11,638kg and has 77kW more power. The Caterpillar D3 is a small crawler dozer; the Komatsu D65PX is a mid-size low ground pressure crawler dozer.
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