Kubota M128GX II
Series: MGX II
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Kubota MGX II series: mid-range tractors from the Sakai plant, from the M110GX II to the M128GX II, 78 to 98 kW from four-cylinder diesel engines of 3,769 to 6,124 cm³
Kubota builds its larger agricultural tractors at the Sakai plant near Osaka. This page collects the MGX II series, from the M110GX II to the M128GX II; the M designation marks the marque's mid-to-large tractor series, the leading number the power class, and GX II the second generation of the GX equipment line with a revised cab and hydraulics.
Read on 3 more paragraphs
The register lists 2 versions from 78 to 98 kW from four-cylinder diesel engines of 3,769 to 6,124 cm³ displacement at 2,200 to 2,600 rpm. Kerb weights range from 3,990 to 4,780 kg, lengths from 4,245 to 4,460 mm, with a width of 2,320 mm and heights from 2,830 to 2,885 mm.
Tractors of this class cover Kubota's entry into the large-tractor segment and are used for heavy tillage, front-loader work and hauling larger trailers; they are aimed at operations that previously ran European or American large tractors. The powerful, large-displacement four-cylinder engines deliver high torque at low revs, which reduces fuel consumption during drawbar work.
When buying a used example, check operating hours and the service history of engine and turbocharger, the condition of gearbox and clutch, the tightness of the hydraulics and front power take-off, and corrosion on cab and wings; Kubota maintains a dense dealer network, so spare parts for this series are generally well available. On heavily used examples, also check the rear-axle seals and the cab mounts.
Sources: SpecCodex register, model data: Kubota MGX II, Kubota (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 133 hp (98 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 6,124 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,460 mmcorrect |
|---|---|
| Width | 2,320 mmcorrect |
| Height | 2,885 mmcorrect |
| Wheelbase | 2,690 mmcorrect |
| Unladen weight | 4,780 kgcorrect |
Drivetrain and chassis
| Front tyres | 420/70R24correct |
|---|---|
| Rear tyres | 520/70R38correct |
| Top speed | 40 km/hcorrect |
Where this model stands
Power-to-weight ratio: 20.5 kW/t (98 kW / 4.8 t)
Power class: Large (100–180 hp)
Stronger than 79% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Kubota M128GX II have?
The Kubota M128GX II delivers 133 hp.
How much does the Kubota M128GX II weigh?
The unladen weight is 4,780 kg.
What engine does the Kubota M128GX II have?
4 cylinders, 6,124 cm³ displacement, Diesel.
How fast does the Kubota M128GX II go?
Top speed is 40 km/h.
What are the dimensions of the Kubota M128GX II?
4,460 mm × 2,320 mm × 2,885 mm.
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.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- 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 16 individual figures for this model. They come from 2 recorded sources; 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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