Zetor 6711
Built: 1972–1977 · Series: 7 er-Serie (UR 1)
More machines from model year 1972
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Zetor 7 series (UR I) – types 4712, 5711 and 6711 from the Brno Unified Range I: three- and four-cylinder diesels, 33.1 to 47.8 kW, 45 to 65 hp, 2.05 to 2.62 t unladen weight
From the mid-1960s Zetor developed in Brno the Unified Range I (UR I), a new, modularly built tractor generation that replaced the older Zetor series and remained in production into the 1990s. This collective page brings together the types 4712, 5711 and 6711 from the UR I's 7 series; the first two digits of the four-digit type designation give an approximate power class in hp, while the following digits mark cylinder count and version. The engines came from Zetor's own diesel engine production in Brno.
Read on 3 more paragraphs
The register lists 3 versions with 33.1 to 47.8 kW (45 to 65 hp) from three- and four-cylinder diesel engines of 2,592 to 3,456 cm³ displacement, torque figures of 144 to 191 Nm at 2,200 rpm. Unladen weights range from 2,050 to 2,620 kg, lengths from 3,160 to 3,670 mm, widths from 1,727 to 1,790 mm and heights from 1,600 to 1,635 mm.
The UR I formed the backbone of Czechoslovak farm machinery and was exported in large numbers to Comecon states as well as through Western trade; in this power class it competed with smaller IHC and Massey Ferguson types of the era. The rugged, easily serviced design made the range a standard tractor for medium-sized farms.
When buying used, check the condition of clutch and gearbox, rust on wings and cab, the tightness of the hydraulics, and the cylinder head and injection pump of the diesel engine. Parts for engine, gearbox and axles remain well available through the Czech Zetor parts trade and independent farm machinery dealers.
Sources: SpecCodex register, model data: Zetor 7er-Serie (UR I)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 65 hp (47.8 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,456 cm³correct |
| Bore | 100 mmcorrect |
| Stroke | 110 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,670 mmcorrect |
|---|---|
| Width | 1,790 mmcorrect |
| Height | 1,635 mmcorrect |
| Wheelbase | 2,247 mmcorrect |
| Ground clearance | 330 mmcorrect |
| Unladen weight | 2,620 kgcorrect |
| Gross vehicle weight | 7,590 kgcorrect |
Drivetrain and chassis
| Drive | rear- and four-wheel drivecorrect |
|---|---|
| Gearbox | 10 V/2 R or 20 V/4 Rcorrect |
| Front tyres | 7.50-16 ASF (A: 11.2-24 AS)correct |
| Rear tyres | 14.9-28 AS (A: 16.9-28 AS)correct |
| Top speed | 25 km/hcorrect |
Working data
| Fuel tank capacity | 79 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: 18.2 kW/t (48 kW / 2.6 t)
Power class: Universal (40–100 hp)
Stronger than 44% 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 6711 have?
The Zetor 6711 delivers 65 hp.
How much does the Zetor 6711 weigh?
The unladen weight is 2,620 kg.
What is the gross vehicle weight of the Zetor 6711?
7,590 kg.
What engine does the Zetor 6711 have?
4 cylinders, 3,456 cm³ displacement, Diesel.
How fast does the Zetor 6711 go?
Top speed is 25 km/h.
What are the dimensions of the Zetor 6711?
3,670 mm × 1,790 mm × 1,635 mm.
When was the Zetor 6711 built?
Production years: 1972–1977.
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.
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 27 individual figures for this model. They come from 3 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Other models in this series
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
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