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Ursus 4512 2WD

Series: Other models

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The Ursus 4512 is a tractor from Ursus. The four-cylinder engine, displacing 4.1 litres, produces 70 hp (51.2 kW). Rated output is reached at 2,000 rpm, so it works in the lower rev range.

Top speed is 28 km/h. It is 1.93 m wide. Unladen weight is 2,880 kg.

Within the range, rated power spans from 30.5 to 193 hp; with 69.7 hp, the 4512 sits in the mid-field. Directly alongside are the 5024 with 68 hp below and the 5312/5314 with 71 hp above.

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

Engine model4,410correct
Power69.7 hp (51.2 kW)correct
Rated speed2,000 rpmcorrect
Torque267.1correct
Speed at max. torque1,500 rpmcorrect
Cylinders4correct
Displacement4,068.9 cm³correct
Coolant capacity14.8 lcorrect
Engine oil capacity7.2 lcorrect

Dimensions and weights

Width1,932.4correct
Wheelbase2,255.5correct
Unladen weight2,880 kgcorrect

Drivetrain and chassis

Gearbox typesliding-gear transmissionscorrect
Forward gears8correct
Reverse gears2correct
Top speed27.5 km/hcorrect
System voltage12 Vcorrect

Working data

Pump flow26.5 l/mincorrect
Hydraulic oil capacity42 lcorrect
Fuel tank capacity80.3 lcorrect

Where this model stands

Power-to-weight ratio: 17.8 kW/t (51 kW / 2.9 t)

Power class: Universal (40–100 hp)

Stronger than 49% of the tractors in the register — out of 15,240 models with a stated power figure.

Calculated from the documented figures above — not a rating.

Frequently asked questions

How much power does the Ursus 4512 have?

The Ursus 4512 delivers 69.7 hp.

How much does the Ursus 4512 weigh?

The unladen weight is 2,880 kg.

What engine does the Ursus 4512 have?

4 cylinders, 4,069 cm³ displacement.

How fast does the Ursus 4512 go?

Top speed is 27.5 km/h.

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.
  • 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 21 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

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