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Ursus C-335

Built: 1967–1987 · Series: Other models

More machines from model year 1967

The photo shows the C-3110 from the same series. Source: https://commons.wikimedia.org/w/index.php?curid=66594033 up

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The Ursus C-335 is a machine built by Ursus. Production: 1967–1987. The engine delivers 30.5 hp (22.4 kW), has 2 cylinders, with a displacement of 1,961 cm³. Torque is 104 Nm. Rated speed is 2,200 rpm. The machine is 3,080 mm long, 1,535 mm wide and 2,070 mm high. The unladen weight is 1,780 kg. The wheelbase measures 1,870 mm. Ground clearance is 400 mm. Top speed is 24 km/h. The tank holds 35 litres. Transmission: 6 V/2 R. The engine is water-cooled. Tyres: front 6.00-16 ASF, rear 11-28 AS. The fuel is diesel. The bore measures 102 mm. The stroke is 120 mm. The compression ratio is 17:1. Maximum torque is reached at 1,820 rpm. Construction: unit construction (no separate frame). The gearbox offers 6 forward gears. There are also 2 reverse gears. The linkage is category II. Rated output across the Ursus range ranges from 8 to 192.6 hp; the C-335 sits at the bottom of that range with 30.5 hp. Its immediate neighbours are the C-330 below it with 30 hp and the C-335 B above it with 35 hp. Rated output across the Ursus range ranges from 8 to 190 hp; here the C-335 sits at the bottom of that range with 30.5 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
Power30.5 hp (22.4 kW)correct
Rated speed2,200 rpmcorrect
Torque104 Nmcorrect
Speed at max. torque1,820 rpmcorrect
Cylinders2correct
Displacement1,961 cm³correct
Bore102 mmcorrect
Stroke120 mmcorrect
Compression ratio17correct
Coolingwater-cooledcorrect

Dimensions and weights

Length3,080 mmcorrect
Width1,535 mmcorrect
Height2,070 mmcorrect
Wheelbase1,870 mmcorrect
Ground clearance400 mmcorrect
Unladen weight1,780 kgcorrect

Drivetrain and chassis

Driverear-wheel drivecorrect
Gearbox6 V/2 Rcorrect
Forward gears6correct
Reverse gears2correct
Front tyres6.00-16 ASFcorrect
Rear tyres11-28 AScorrect
Top speed24 km/hcorrect

Working data

Fuel tank capacity35 lcorrect

Origin and approval

Constructionunit construction (no separate frame)correct

Other data

Linkage categoryCat IIcorrect

Where this model stands

Power-to-weight ratio: 12.6 kW/t (22 kW / 1.8 t)

Power class: Compact (< 40 hp)

Stronger than 18% 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 C-335 have?

The Ursus C-335 delivers 30.5 hp.

How much does the Ursus C-335 weigh?

The unladen weight is 1,780 kg.

What engine does the Ursus C-335 have?

2 cylinders, 1,961 cm³ displacement, Diesel.

How fast does the Ursus C-335 go?

Top speed is 24 km/h.

What are the dimensions of the Ursus C-335?

3,080 mm × 1,535 mm × 2,070 mm.

When was the Ursus C-335 built?

Production years: 1967–1987.

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 29 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

Sources: [1] [2]

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