Head to head
Kubota KX037-4 vs Kubota U50-5
The Kubota U50-5 has 23kW more power and is the bigger machine by 1,257kg. The Kubota KX037-4 digs 4cm deeper.
Last reviewed 13 September 2026
Key differences
- Engine power: the Kubota U50-5 has 23kW more power.
- Operating weight: the Kubota U50-5 is the bigger machine by 1,257kg.
- Dig depth: the Kubota KX037-4 digs 4cm deeper.
Specifications side by side
| Kubota KX037-4 | Kubota U50-5 | |
|---|---|---|
| Operating weight | 3518 kg | 4,775kg |
| Dig depth | 3410 mm | 3,370mm |
| Engine power | 17.8 kw | 40.4kW |
| Width | 1550 mm | - |
Sources: Kubota KX037-4, Kubota U50-5. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the KX037-4 if...
- you want one that digs 4cm deeper
A 3.5 tonne class digger used by groundworkers, utility contractors and hire fleets for trenching, foundations and landscaping. Suits sites that need more reach and lift than a 3 tonne machine.
Full KX037-4 specifications →Buy or hire the U50-5 if...
- you want one that has 23kW more power
- you want one that is the bigger machine by 1,257kg
A mid-size mini excavator for groundworkers who need more reach and dig depth than the smaller Kubota models while still keeping a compact machine for site access. Suits drainage, footings and utility trenching.
Listed by
- McGovern Plant Hire - Hounslow, Cranford
- Standard Plant Hire - Keston
Common questions
What is the difference between the Kubota KX037-4 and the Kubota U50-5?
The Kubota U50-5 has 23kW more power and is the bigger machine by 1,257kg. The Kubota KX037-4 digs 4cm deeper. The Kubota KX037-4 is a 3.5 tonne class mini excavator; the Kubota U50-5 is a 4.8 tonne mini excavator.
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