Zetor 8520/8540
Built: 1992–1999 · Series: UR-3 Baureihe
More machines from model year 1992
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Zetor UR III – tractors 7520/7540, 8520/8540, 9520/9540 and 10540 from Brno in the 1990s, four-cylinder diesels from 52 to 76 kW with a uniform 4.16-litre displacement, two- and four-wheel-drive variants
With the UR III generation, Zetor replaced the preceding Crystal series (UR II) from the 1990s onward, still built at the home plant in Brno. Type numbers 7520 to 10540 reflect the power class in horsepower in their first two digits, while the last two digits, 20 and 40, distinguish the drive type at Zetor: models ending in 20 are two-wheel-drive tractors, models ending in 40 are four-wheel-drive versions of the same base type. All four sizes in this range share the same four-cylinder engine of 4.16 litres displacement.
Read on 3 more paragraphs
The register lists four versions here with 51.5 to 75.8 kW from four-cylinder diesel engines with a uniform 4,156 cm³ displacement. Rated speed is 2,200 rpm, unladen weight ranges from 3,475 to 4,255 kg with lengths from 4,190 to 4,380 mm, widths from 1,950 to 2,100 mm and heights from 2,640 to 2,705 mm; torque lies between 238 and 373 Nm.
The UR III series targeted medium-sized farms in central and eastern Europe and, after the political changes of the 1990s, stood for the first time in direct competition with western European brands such as Fendt, Deutz-Fahr and Case IH, which were newly pushing into the Czech and Slovak markets.
When buying used, check the condition of the clutch and gearbox, tightness of the hydraulic pump, on the four-wheel-drive models additionally the front axle differential and driveshafts, and corrosion on the wings and cab floor. Parts are well available through Zetor's distribution and a dense network of eastern European specialist dealers.
Sources: SpecCodex register, model data: Zetor UR-3 Baureihe, Zetor (manufacturer)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 84 hp (61.8 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 297 Nmcorrect |
| Speed at max. torque | 1,450 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 4,156 cm³correct |
| Bore | 105 mmcorrect |
| Stroke | 120 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,190 mmcorrect |
|---|---|
| Width | 1,950 mmcorrect |
| Height | 2,640 mmcorrect |
| Wheelbase | 2,375 mmcorrect |
| Ground clearance | 536 mmcorrect |
| Unladen weight | 3,785 kgcorrect |
Drivetrain and chassis
| Drive | rear- or four-wheel drivecorrect |
|---|---|
| Gearbox | 18 V/6 R or 16 V/4 Rcorrect |
| Front tyres | 7.50-20 ASF (A: 12.4 R 24 AS)correct |
| Rear tyres | 16.9 R 38 AScorrect |
| Top speed | 30 km/hcorrect |
Working data
| Fuel tank capacity | 105 lcorrect |
|---|
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Other data
| Linkage category | Cat IIcorrect |
|---|---|
| PTO speed | 540/1000 rpmcorrect |
Where this model stands
Power-to-weight ratio: 16.3 kW/t (62 kW / 3.8 t)
Power class: Universal (40–100 hp)
Stronger than 58% 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 Zetor 8520/8540 have?
The Zetor 8520/8540 delivers 84 hp.
How much does the Zetor 8520/8540 weigh?
The unladen weight is 3,785 kg.
What engine does the Zetor 8520/8540 have?
4 cylinders, 4,156 cm³ displacement, Diesel.
How fast does the Zetor 8520/8540 go?
Top speed is 30 km/h.
What are the dimensions of the Zetor 8520/8540?
4,190 mm × 1,950 mm × 2,640 mm.
When was the Zetor 8520/8540 built?
Production years: 1992–1999.
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 27 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: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
