Head to head
Hitachi ZX135USB-7 vs Iseki TF321F
The Hitachi ZX135USB-7 has 58kW more power.
Last reviewed 13 September 2026
Key differences
- Engine power: the Hitachi ZX135USB-7 has 58kW more power.
Specifications side by side
| Hitachi ZX135USB-7 | Iseki TF321F | |
|---|---|---|
| Engine power | 74kW (ISO14396) / 73kW (ISO9249) | 21HP |
| Operating weight | 13,800 - 16,000kg | - |
| Drive | - | 4WD |
Sources: Hitachi ZX135USB-7, Iseki TF321F. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the ZX135USB-7 if...
- you want one that has 58kW more power
Built for sites with tight working margins - roadside, urban and confined yards - where a swinging counterweight would foul walls, parked vehicles or passing traffic. Popular with utility and demolition contractors working close to structures.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
Buy or hire the TF321F if...
A small 4WD compact tractor aimed at smallholdings, paddocks and estate grounds work rather than full-scale farming. Its low power puts it alongside garden and topper attachments, not ploughing or heavy haulage.
Listed by
- Baz plant Sales agricultural plant and machinery dealer - Chesterfield
Common questions
What is the difference between the Hitachi ZX135USB-7 and the Iseki TF321F?
The Hitachi ZX135USB-7 has 58kW more power. The Hitachi ZX135USB-7 is a 13 tonne zero tail swing crawler excavator; the Iseki TF321F is a 4WD compact tractor.
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