Kubota M128GX
Series: Other models
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The Kubota M128GX is part of the tractor group and represents a mid‑range model designed for agricultural use. It is equipped with a four‑stroke engine with four cylinders and a displacement of 6 124 cm³, delivering 133 hp (98 kW) at a rated speed of 2 200 rpm. Its compact dimensions of 4 460 mm length, 2 320 mm width and 2 885 mm height together with a wheelbase of 2 690 mm provide good maneuverability on narrow fields. An empty weight of 4 780 kg ensures sufficient traction, while a top speed of 40 km/h allows rapid travel between work sites.
From a technical perspective, the 133 hp output enables the M128GX to handle heavy implements such as plows or harvesters without overloading the engine. The relatively low empty weight reduces soil pressure, which is beneficial on delicate soils because the load is spread more evenly. The 2 690 mm wheelbase contributes to stability at higher speeds, and the 40 km/h maximum speed facilitates quick movement to subsequent fields, improving daily operational efficiency.
Since no comparative figures are provided within the series, the M128GX cannot be directly positioned against smaller or larger models of the same line. It is suited for typical tasks in the middle power segment, where both adequate pulling power and moderate weight are required, for example in field work, harvest assistance and on‑farm load transport.
Kubota – other models: the collective page of tractors outside the named ranges, from the B and L compacts (B7100, L3350) through the M range to the M7 and the smallest tractors of the 1970s, 9 to 129 kW
This page gathers the Kubota tractors the register could not assign to a named range – the Osaka group that began in 1890 as a foundry, built its first tractor in 1960 and came to North America and Europe with compact tractors in the 1970s, where it dominates the class under 50 hp to this day. The type logic: the letter gives the range – B for the compacts under 30 hp, L for the mid-range up to 60 hp, M for the full-size tractors above, BX and GR for lawn tractors – the number roughly the hp class (B7100 about 16 hp, L3350 about 33 hp, M9540 about 95 hp), D and DT four-wheel drive, HST the hydrostatic transmission, GL, GX and X equipment lines; since 2014 Kubota has also built tractors up to 170 hp with the M7 range from the Bierne plant in France. The engines are throughout Kubota's own diesels – the D and V series of 0.5 to 6.1 litres, which Bobcat, Manitou and many other makers also source.
Read on 3 more paragraphs
The register lists here 657 versions with 8.9 to 129 kW from two- to five-cylinders of 500 to 6,129 cm³, PTO outputs from 14 to 140 hp, lift capacities from 300 to 5,350 kg, unladen weights from 440 to 7,350 kg, lengths from 1,800 to 4,940 mm and widths from 900 to 2,795 mm.
Kubota is the world's largest maker of compact tractors and market leader in Japan, North America and Southeast Asia; in Europe the brand gained a foothold through municipalities, horticulture and hobby farms and is growing into agriculture with the M range.
On used tractors, operating hours, engine condition (Kubota diesels are regarded as long-lived), hydrostat or clutch, four-wheel-drive clutch, front loader and mower PTO, on younger models the exhaust aftertreatment count; parts run through the dense Kubota network.
Sources: SpecCodex register, model data: Kubota (weitere Modelle), Kubota Europe (manufacturer)
Technical data
Engine
| Power | 133 hp (98 kW)correct |
|---|---|
| Rated speed | 2,200 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 6,124 cm³correct |
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
| 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 have?
The Kubota M128GX delivers 133 hp.
How much does the Kubota M128GX weigh?
The unladen weight is 4,780 kg.
What engine does the Kubota M128GX have?
4 cylinders, 6,124 cm³ displacement.
How fast does the Kubota M128GX go?
Top speed is 40 km/h.
What are the dimensions of the Kubota M128GX?
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.
- 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.
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This page carries 11 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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Other models in this series
Sources: UK government data (DVLA) (retrieved August 2026) · Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved September 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
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