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Ursus 4011

Built: 1965–1970 · Series: Other models

More machines from model year 1965

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The 4011 comes from Ursus. Production: 1965–1970. The engine delivers 42 hp (30.9 kW), has 4 cylinders, with a displacement of 3,119 cm³. Torque is 180 Nm. Rated speed is 2,000 rpm. The machine is 3,250 mm long, 1,790 mm wide and 1,620 mm high. The unladen weight is 2,100 kg. The wheelbase measures 2,125 mm. Ground clearance is 436 mm. Top speed is 25 km/h. The tank holds 70 litres. Transmission: 10 V/2 R. The engine is water-cooled. Tyres: front 6.00-16 ASF, rear 14.9-28 AS. The fuel is diesel. The bore measures 95 mm. The stroke is 110 mm. The compression ratio is 17:1. Maximum torque is reached at 1,500 rpm. Construction: unit construction (no separate frame). The gearbox offers 10 forward gears. There are also 2 reverse gears. Injection pressure is 160 bar. The linkage is category II. Around 98.284 units were built. Rated output across the Ursus range ranges from 8 to 192.6 hp; the 4011 sits in the lower part of that range with 42 hp. Its immediate neighbours are the 2812 below it with 40.6 hp and the C-355 above it with 45 hp. Rated output across the Ursus range ranges from 8 to 190 hp; here the 4011 sits in the lower part of that range with 42 hp. 221 Ursus models across 12 series are on record.

Ursus — one brand, two licences, many relatives

Anyone looking at an Ursus rarely sees a purely in-house design. The brand's history is a history of licences — and that is precisely why parts are often easier to find than the production figures would suggest.

Read on 4 more paragraphs

In 1965 the Warsaw plant began building the C-4011 under a licence agreement with Zetor in Brno. At its heart sat the S-4001 engine, the Polish version of Zetor's Z-4001. That kinship runs through the ranges: the later C-360, built from 1976 and in the programme until the end of 1994, used the S-4003, the strongest engine of that family.

In 1974 a second licence followed — the British one from Massey Ferguson, together with the associated production plant. Models such as the MF 235, MF 255 and MF 265 were then built in Poland with Perkins engines and became a fixture on many farms. The higher Ursus ranges with four-digit numbers descend from this line.

One remarkable long-runner stands out: the C-325 and its revised versions C-328 and C-330 — popularly the "thirties" — plus the C-335 export version, ran without interruption for 34 years until 1993.

When buying used it is therefore worth establishing the range's ancestry first. An Ursus from the Zetor line shares engine parts with Czech machines, one from the Massey Ferguson line with British ones. That decides where to look for components.

Sources: warzywa.pl, Wiadomości Rolnicze Polska, ursus.info.pl

Technical data

Engine

Fueldieselcorrect
Power42 hp (30.9 kW)correct
Rated speed2,000 rpmcorrect
Torque180 Nmcorrect
Speed at max. torque1,500 rpmcorrect
Cylinders4correct
Displacement3,119 cm³correct
Bore95 mmcorrect
Stroke110 mmcorrect
Compression ratio17correct
Injection pressure160 barcorrect
Coolingwater-cooledcorrect

Dimensions and weights

Length3,250 mmcorrect
Width1,790 mmcorrect
Height1,620 mmcorrect
Wheelbase2,125 mmcorrect
Ground clearance436 mmcorrect
Unladen weight2,100 kgcorrect

Drivetrain and chassis

Driverear-wheel drivecorrect
Gearbox10 V/2 Rcorrect
Forward gears10correct
Reverse gears2correct
Front tyres6.00-16 ASFcorrect
Rear tyres14.9-28 AScorrect
Top speed25 km/hcorrect

Working data

Fuel tank capacity70 lcorrect

Origin and approval

Constructionunit construction (no separate frame)correct
Units built98,284correct

Other data

Linkage categoryCat IIcorrect

Where this model stands

Power-to-weight ratio: 14.7 kW/t (31 kW / 2.1 t)

Power class: Universal (40–100 hp)

Stronger than 27% 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 Ursus 4011 have?

The Ursus 4011 delivers 42 hp.

How much does the Ursus 4011 weigh?

The unladen weight is 2,100 kg.

What engine does the Ursus 4011 have?

4 cylinders, 3,119 cm³ displacement, Diesel.

How fast does the Ursus 4011 go?

Top speed is 25 km/h.

What are the dimensions of the Ursus 4011?

3,250 mm × 1,790 mm × 1,620 mm.

When was the Ursus 4011 built?

Production years: 1965–1970.

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 31 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: [1]

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