Head to head
Caterpillar D3 vs HD Hyundai Construction Equipment R35Z-9A
The Caterpillar D3 has 60kW more power and is the bigger machine by 1,018kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D3 has 60kW more power.
- Operating weight: the Caterpillar D3 is the bigger machine by 1,018kg.
Specifications side by side
| Caterpillar D3 | HD Hyundai Construction Equipment R35Z-9A | |
|---|---|---|
| Operating weight | 9362kg (20,640lb) | 8,344 lb |
| Engine power | 77.6kW (104hp) | 23.7 hp at 2,200 rpm (Yanmar 3TNV88F) |
| Blade capacity | 2.19m3, or 2.34m3 with LGP tracks | - |
| Engine | Cat C3.6 | - |
| Dig depth | - | 10 ft 3.4 in |
Sources: Caterpillar D3, HD Hyundai Construction Equipment R35Z-9A. 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 60kW more power
- you want one that is the bigger machine by 1,018kg
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 R35Z-9A if...
The Hyundai R35Z-9A is a 3.5 tonne class zero tail swing compact excavator that gives UK contractors and hirers a lower-cost alternative to the equivalent Kubota, Takeuchi and JCB machines in the same size band. It uses a Yanmar diesel engine rather than an in-house Hyundai power unit at this size, reflecting how compact excavators across brands often share third-party engines and hydraulics. Hyundai's UK dealer coverage for this class is thinner than the market leaders, spread across several regional appointed dealers.
Full R35Z-9A specifications →Common questions
What is the difference between the Caterpillar D3 and the HD Hyundai Construction Equipment R35Z-9A?
The Caterpillar D3 has 60kW more power and is the bigger machine by 1,018kg. The Caterpillar D3 is a small crawler dozer; the HD Hyundai Construction Equipment R35Z-9A is a a 3.5 tonne class zero tail swing compact excavator.
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