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Caterpillar D3 vs Comacchio GEO 900

The Caterpillar D3 is a small crawler dozer. The Comacchio GEO 900 is a crawler-mounted multipurpose drilling rig.

Last reviewed 13 September 2026

Specifications side by side

Caterpillar D3Comacchio GEO 900
Engine power77.6kW (104hp)126-180kW (169-240hp)
Operating weight9362kg (20,640lb)-
Blade capacity2.19m3, or 2.34m3 with LGP tracks-
EngineCat C3.6-
Weight-16-18 tonnes
Torque range-1,300-1,520 daNm
Feed stroke-4,000-7,000mm

Sources: Caterpillar D3, Comacchio GEO 900. 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

Full D3 specifications →

Buy or hire the GEO 900 if...

A crawler-mounted rig for geotechnical investigation, water well and geothermal drilling, adaptable to several drilling methods on the same base machine. Ground investigation and specialist drilling contractors hire it rather than general groundworks firms.

Listed by

Full GEO 900 specifications →

Common questions

What is the difference between the Caterpillar D3 and the Comacchio GEO 900?

The Caterpillar D3 is a small crawler dozer; the Comacchio GEO 900 is a crawler-mounted multipurpose drilling rig.

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