Zetor 8520
Series: Other models
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The Zetor 8520 belongs to the tractor group and is a model produced by Zetor. It is equipped with a power output of 84 hp (61.8 kW) and a four‑cylinder diesel engine with a displacement of 4 156 cm³. The rated speed is 2 200 rpm and the maximum torque is 297 Nm. The machine measures 4 190 mm in length and 2 640 mm in height. The transmission is available with either 18 forward and 6 reverse gears or 16 forward and 4 reverse gears, while the power take‑off speed is 540/1000 rpm. The fuel tank capacity is 105 l and the device falls into the power‑lift category Cat II.
A power rating of 84 hp enables the pulling of medium‑size implements and handling of field work with moderate effort. The torque of 297 Nm provides sufficient pulling force when starting heavy loads, especially at low speeds. The 105 l tank allows long operating periods without frequent refuelling, and the choice between two gearbox variants offers adaptability to different working conditions. The compact overall length of 4 190 mm facilitates maneuvering in tight rows.
The Zetor 8520 is suited for typical tasks in the mid‑range class, such as operating plows, seeders and mulcher systems on medium‑sized fields. The combination of adequate power, robust torque and a generous fuel capacity makes the machine applicable to both arable farming and grassland management.
Zetor — where the name comes from and how the ranges connect, models from 11 to 120 kW, engines including Caterpillar, Perkins, Zetor and Deutz
The brand name is a compound: the "Z" of the Brno arms factory Zbrojovka and the ending "-tor". It was there, in March 1946, that the first three Z 25 tractors left the line — an eightieth anniversary in 2026.
Read on 4 more paragraphs
Order among the many Zetor types came in the 1960s with the unified UR I and UR II ranges. They brought more modern engineering and, above all, shared central components — the reason parts can be swapped across model boundaries. In the late 1960s the UR II joined the programme, designed for stronger machines and more demanding work.
Those lines still run today. The UR II range was revised and reached the market in 1998 as the Zetor Forterra. Around the turn of the millennium came the Proxima and Forterra ranges together with the modernised Major and Crystal — the generation carrying the brand through its recent history.
Anyone assessing an older model should therefore identify the base range first. A tractor from the UR II family is technically related to the Forterra, even with decades between them. That kinship decides how readily parts can be found — with a brand spanning eighty years of models, that is the most practical question of all.
Across the whole power range gathered here, 11 to 120 kW, the ISO 730 three-point linkage spans Category 0 on the smallest post-war models to Category II on the stronger series; the 540 rpm PTO speed remained, across the decades, the unchanged common denominator of every Zetor generation.
Sources: SpecCodex register, model data: Zetor (weitere Modelle), Zetor
Technical data
Engine
| Power | 84 hp (61.8 kW)correct |
|---|---|
| Rated speed | 2,200 rpmcorrect |
| Torque | 297 Nmcorrect |
| Cylinders | 4correct |
| Displacement | 4,156 cm³correct |
Dimensions and weights
| Length | 4,190 mmcorrect |
|---|---|
| Height | 2,640 mmcorrect |
Drivetrain and chassis
| Gearbox | 18 V/6 R or 16 V/4 Rcorrect |
|---|
Working data
| Fuel tank capacity | 105 lcorrect |
|---|
Other data
| Linkage category | Cat IIcorrect |
|---|---|
| PTO speed | 540/1000 rpmcorrect |
Frequently asked questions
How much power does the Zetor 8520 have?
The Zetor 8520 delivers 84 hp.
What engine does the Zetor 8520 have?
4 cylinders, 4,156 cm³ displacement.
What are the dimensions of the Zetor 8520?
4,190 mm × 2,640 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.
- 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 12 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
10111
105 41 PROXIMA PLUS
105 Forterra
10541 PROXIMA PLUS
10641 FORTERRA
10641.21 FORTERRA
10742 Forterra
11050 Silver Series
11441 Forterra
12145
12245
124 41 FORTERRA
Sources: Wikipedia (retrieved August 2026) · Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved September 2026) · How we check the data
Tractor in 3D section
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