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MAN 4 R 1

Q: What engine does the MAN 4 R 1 have?

4 cylinders, 3,473 cm³ displacement, Diesel.

Q: What are the dimensions of the MAN 4 R 1?

3,620 mm × 1,865 mm × 1,930 mm.

Built: 1956–1957 · Series: R

More machines from model year 1956

Source: https://www.technikboerse.at/gebraucht/traktor-357/man-751

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With the 4 R 1, MAN offers a model from the R series. Production: 1956–1957. The engine delivers 40 hp (29.3 kW), has 4 cylinders, with a displacement of 3,473 cm³. Rated speed is 1,800 rpm. The machine is 3,620 mm long, 1,865 mm wide and 1,930 mm high. The unladen weight is 2,530 kg. The wheelbase measures 2,215 mm. Ground clearance is 400 mm. Top speed is 18.4 km/h. The tank holds 60 litres. The engine is water-cooled. Tyres: front 6.50-20 AS, rear 13-30 AS. The fuel is diesel. Construction: frameless unit construction. Around 878 units were built. The R series covers 6 models. Rated output within it ranges from 40 to 45 hp; the 4 R 1 sits at the bottom of that range with 40 hp. Its immediate neighbours are the 2R3 above it with 45 hp. Unladen weight within it ranges from 2,350 to 2,640 kg; here the 4 R 1 sits in the upper part of that range with 2,530 kg. 5237 MAN models across 68 series are on record.

MAN R (Nuremberg) – diesel tractors of the four-wheel-drive pioneer before tractor production ended in 1962: 2R1 to 4R3, four-cylinder diesels of 2.6 to 3.9 litres, 40 to 45 hp, 2.35 to 2.64 t

MAN built diesel tractors in Nuremberg from 1921 to 1962 and is counted among the pioneers of four-wheel drive in the tractor business; the R range is among the last series before tractor production ended, when MAN handed the business to Fendt in 1962. The 2R1 to 4R3 models all carry four-cylinder diesel engines, one of which the register lists as a MAN D 0024 M 220; the 1,865 mm width is identical across all six versions, pointing to a shared axle and chassis for the whole range.

Read on 3 more paragraphs

The register lists 6 versions with 29.3 to 32.9 kW (40 to 45 hp) from four-cylinder diesels of 2,560 to 3,927 cm³ at 1,800 to 2,200 rpm, unladen weights from 2,350 to 2,640 kg, lengths from 3,300 to 3,620 mm, a width of 1,865 mm and heights from 1,505 to 1,930 mm; hydraulic lift capacity reaches up to 2,880 kg.

The R range served the Bavarian post-war reconstruction market, where MAN competed with Deutz, Hanomag, Eicher and Fendt for mid-size field tractors; with the sale of the tractor division to Fendt in 1962, MAN's independent tractor manufacture in Nuremberg came to an end.

On used tractors, the MAN diesel engine with injection pump, clutch and gearbox, hydraulics and linkage, brakes and sheet metal and frame for rust count; since the make has built no tractors for over six decades, parts now run only through specialists and collector markets.

Sources: SpecCodex register, model data: MAN R

Technical data

Engine

Fuel	dieselcorrect
Power	40 hp (29.3 kW)correct
Rated speed	1,800 rpmcorrect
Cylinders	4correct
Displacement	3,473 cm³correct
Cooling	water-cooledcorrect

Dimensions and weights

Length	3,620 mmcorrect
Width	1,865 mmcorrect
Height	1,930 mmcorrect
Wheelbase	2,215 mmcorrect
Ground clearance	400 mmcorrect
Unladen weight	2,530 kgcorrect

Drivetrain and chassis

Drive	four-wheel drivecorrect
Gearbox	5/1-Getriebecorrect
Front tyres	6.50-20 AScorrect
Rear tyres	13-30 AScorrect
Top speed	18.4 km/hcorrect

Working data

Fuel tank capacity	60 lcorrect

Origin and approval

Construction	frameless unit constructioncorrect
Units built	878correct

Where this model stands

Power-to-weight ratio: 11.6 kW/t (29 kW / 2.5 t)

Power class: Compact (< 40 hp)

Stronger than 25% 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 MAN 4 R 1 have?

The MAN 4 R 1 delivers 40 hp.

How much does the MAN 4 R 1 weigh?

The unladen weight is 2,530 kg.

What engine does the MAN 4 R 1 have?

4 cylinders, 3,473 cm³ displacement, Diesel.

How fast does the MAN 4 R 1 go?

Top speed is 18.4 km/h.

What are the dimensions of the MAN 4 R 1?

3,620 mm × 1,865 mm × 1,930 mm.

When was the MAN 4 R 1 built?

Production years: 1956–1957.

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 22 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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