Kubota U43 4WD
Series: Other models
The Kubota U43 is a tractor from the Kubota 4WD Tractor series. The four-cylinder engine, displacing 2.5 litres, produces 44 hp (32.1 kW). Rated output is reached at 2,600 rpm, so it works in the lower rev range.
Top speed is 30 km/h. Unladen weight is 2,200 kg.
Within the range, rated power spans from 18.2 to 116 hp; with 43.6 hp, the U43 sits in the mid-field. Directly alongside are the R41 with 41.6 hp below and the L4330DT with 43.8 hp above.
Technical data
Engine
| Engine model | S4Qcorrect |
|---|---|
| Power | 43.6 hp (32.1 kW)correct |
| Rated speed | 2,600 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 2,505.6 cm³correct |
Dimensions and weights
| Unladen weight | 2,200 kgcorrect |
|---|
Drivetrain and chassis
| Gearbox type | synchro shuttlecorrect |
|---|---|
| Forward gears | 16correct |
| Reverse gears | 16correct |
| Tyre size | front: 8.3-20 (6PR), rear 12.4-28 (6PR)correct |
| Top speed | 30.4 km/hcorrect |
| System voltage | 12 Vcorrect |
Working data
| Fuel tank capacity | 60.2 lcorrect |
|---|
Other data
| Height | 2,560.3correct |
|---|
Where this model stands
Power-to-weight ratio: 14.6 kW/t (32 kW / 2.2 t)
Power class: Universal (40–100 hp)
Stronger than 29% of the tractors in the register — out of 15,240 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Kubota U43 have?
The Kubota U43 delivers 43.6 hp.
How much does the Kubota U43 weigh?
The unladen weight is 2,200 kg.
What engine does the Kubota U43 have?
4 cylinders, 2,506 cm³ displacement.
How fast does the Kubota U43 go?
Top speed is 30.4 km/h.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 15 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.