Belarus 100X
Built: 1985–1990 · Series: 100
More machines from model year 1985
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Belarus 100X: the water-cooled four-cylinder tractor from the Minsk Tractor Works, 77 kW (105 hp) at 2,200 rpm, built 1985 to 1990
Belarus is the export brand of the Minsk Tractor Works (MTZ), founded in 1946 and among the world's largest tractor makers. The model 100X was built from 1985 to 1990.
Read on 3 more paragraphs
The engine is a water-cooled four-cylinder diesel of 4,750 cm³ displacement, producing 77 kW (105 hp) at 2,200 rpm. The tractor is 4,040 mm long, 2,800 mm wide and 2,900 mm high, with a wheelbase of 2,470 mm, a weight of 3,800 kg and a top speed of 18 km/h. At just under 3.8 tonnes and 77 kW, the 100X sits in the lower half of the heavy MTZ general-purpose tractors.
A four-cylinder of around 4.75 litres displacement and 105 hp belongs to the class of medium-heavy general-purpose tractors, of the kind needed for tilling larger fields and working with heavier implements; at 18 km/h, the tractor was built for pure fieldwork rather than fast road transport. This comparatively low top speed was typical of the design of general-purpose tractors of this weight class at the time.
When buying an MTZ tractor of this age used, what matters is the engine's operating hours, the condition of the clutch and gearbox, rust on sheet-metal and frame parts, and the hydraulics. The electrics, starter battery and hydraulic system seals should also be checked. Spare parts for Belarus tractors are, thanks to the high production numbers and the simple, robust design, still comparatively easy to obtain even for older models.
Sources: SpecCodex-Register: Kennwerte des Modells Belarus 100X, Minsker Traktorenwerk (Wikipedia)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 105 hp (77 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 4,750 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,040 mmcorrect |
|---|---|
| Width | 2,800 mmcorrect |
| Height | 2,900 mmcorrect |
| Wheelbase | 2,470 mmcorrect |
| Ground clearance | 620 mmcorrect |
| Unladen weight | 3,800 kgcorrect |
Drivetrain and chassis
| Drive | 3×2correct |
|---|---|
| Gearbox | 24/8correct |
| Front tyres | 12-16 oder 13, 0/75-16correct |
| Rear tyres | 15, 5R38correct |
| Top speed | 18 km/hcorrect |
Origin and approval
| Construction | semi-frame constructioncorrect |
|---|
Where this model stands
Power-to-weight ratio: 20.3 kW/t (77 kW / 3.8 t)
Power class: Large (100–180 hp)
Stronger than 69% 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 Belarus 100X have?
The Belarus 100X delivers 105 hp.
How much does the Belarus 100X weigh?
The unladen weight is 3,800 kg.
What engine does the Belarus 100X have?
4 cylinders, 4,750 cm³ displacement, Diesel.
How fast does the Belarus 100X go?
Top speed is 18 km/h.
What are the dimensions of the Belarus 100X?
4,040 mm × 2,800 mm × 2,900 mm.
When was the Belarus 100X built?
Production years: 1985–1990.
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.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- 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 19 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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Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.