Head to head
Caterpillar D4K2 vs HD Hyundai Construction Equipment R35Z-9A
The Caterpillar D4K2 has 51kW more power. The HD Hyundai Construction Equipment R35Z-9A is the bigger machine by 176kg.
Last reviewed 13 September 2026
Key differences
- Engine power: the Caterpillar D4K2 has 51kW more power.
- Operating weight: the HD Hyundai Construction Equipment R35Z-9A is the bigger machine by 176kg.
Specifications side by side
| Caterpillar D4K2 | HD Hyundai Construction Equipment R35Z-9A | |
|---|---|---|
| Operating weight | 8,168kg (XL) / 8,476kg (LGP) | 8,344 lb |
| Engine power | 92hp (68.8kW), Cat C4.4 ACERT | 23.7 hp at 2,200 rpm (Yanmar 3TNV88F) |
| Blade capacity | 1.98m3 (XL) / 1.85m3 (LGP) | - |
| Ground pressure | 38.6kPa (XL) / 29.2kPa (LGP) | - |
| Dig depth | - | 10 ft 3.4 in |
Sources: Caterpillar D4K2, 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 D4K2 if...
- you want one that has 51kW more power
Cat's smallest crawler dozer, used for grading, site clearance and landscaping where a larger machine would be too heavy or too wide. The LGP undercarriage option suits soft or wet ground.
Listed by
- B & T Plant Hire - Gravesend
- B & T Plant Hire Ltd - Morden
Buy or hire the R35Z-9A if...
- you want one that is the bigger machine by 176kg
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 D4K2 and the HD Hyundai Construction Equipment R35Z-9A?
The Caterpillar D4K2 has 51kW more power. The HD Hyundai Construction Equipment R35Z-9A is the bigger machine by 176kg. The Caterpillar D4K2 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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