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Oliver / Fiat 1250 (4 WD)

Built: 1965–1969 · Series: 50 er-Baureihe

More machines from model year 1965

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The 1250 (4 WD) from Oliver / Fiat is part of the 50er series. Production: 1965–1969. The engine delivers 42 hp (30.9 kW), has 4 cylinders, with a displacement of 2,270 cm³. Torque is 143 Nm. Rated speed is 2,500 rpm. The machine is 2,997 mm long, 1,283 mm wide and 1,300 mm high. The unladen weight is 1,490 kg. The wheelbase measures 1,918 mm. Ground clearance is 390 mm. Top speed is 25 km/h. The engine is water-cooled. Tyres: front 6.00-16 (4WD = 7.50-20), rear 12.4-28. The fuel is Diesel/Benzin. The bore measures 85 mm. The stroke is 100 mm. The compression ratio is 21.5:1. Maximum torque is reached at 1,600 rpm. Blockbauweise. Injection pressure is 113 bar. The 50 er-Baureihe series covers 3 models. Rated output within it ranges from 42 to 66 hp; the 1250 (4 WD) sits at the bottom of that range with 42 hp. Its immediate neighbours are the 1450 (4 WD) above it with 66 hp. Unladen weight within it ranges from 1,490 to 2,720 kg; here the 1250 (4 WD) sits at the bottom of that range with 1,490 kg. 7 Oliver / Fiat models across 3 series are on record.

Oliver/Fiat 50 series – US tractors 1250 and 1450 built under Fiat licence, 31 to 49 kW, three- and four-cylinder engines of 2,270 to 4,397 cm³, diesel or dual-fuel diesel/petrol

The 50 series grew out of the cooperation between the US maker Oliver and Fiat, which supplied Oliver with licence-built tractors from the 1960s; the types covered here, 1250, 1250-A and 1450, all carry the 4 WD suffix for four-wheel drive. The four-digit type numbers order the models by size, with the 1450 the largest of the three versions.

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The register lists here 3 versions with 30.9 to 48.6 kW from three- and four-cylinder engines of 2,270 to 4,397 cm³, unladen weights from 1,490 to 2,720 kg, lengths from 2,997 to 3,452 mm, widths from 1,283 to 1,585 mm and heights from 1,300 to 2,355 mm, at speeds of 1,900 to 2,500 rpm.

With four-wheel drive on all three models, the range targeted more demanding terrain in North America and Europe; the combination of Oliver distribution and Fiat engineering was part of the growing international ties among tractor makers of the period, before Oliver was absorbed into the White Motor Corporation in the 1970s.

On a used example of this range, the condition of the four-wheel-drive clutch and front-axle gearing, rust on the chassis and wings, the function of the hydraulics, and, on the rare dual-fuel diesel/petrol versions, the condition of the carburettor or ignition system all count; parts for the Fiat engineering are easier to source than Oliver-specific fittings.

Sources: SpecCodex register, model data: Oliver/Fiat 50er-Baureihe

Technical data

Engine

Fuel	Diesel/Benzincorrect
Power	42 hp (30.9 kW)correct
Rated speed	2,500 rpmcorrect
Torque	143 Nmcorrect
Speed at max. torque	1,600 rpmcorrect
Cylinders	4correct
Displacement	2,270 cm³correct
Bore	85 mmcorrect
Stroke	100 mmcorrect
Compression ratio	21.5correct
Injection pressure	113 barcorrect
Cooling	water-cooledcorrect

Dimensions and weights

Length	2,997 mmcorrect
Width	1,283 mmcorrect
Height	1,300 mmcorrect
Wheelbase	1,918 mmcorrect
Ground clearance	390 mmcorrect
Unladen weight	1,490 kgcorrect

Drivetrain and chassis

Drive	rear- or four-wheel drivecorrect
Front tyres	6.00-16 (4WD = 7.50-20)correct
Rear tyres	12.4-28correct
Top speed	25 km/hcorrect

Origin and approval

Construction	Rahmen- bzw. Blockbauweisecorrect

Where this model stands

Power-to-weight ratio: 20.7 kW/t (31 kW / 1.5 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 Oliver / Fiat 1250 (4 WD) have?

The Oliver / Fiat 1250 (4 WD) delivers 42 hp.

How much does the Oliver / Fiat 1250 (4 WD) weigh?

The unladen weight is 1,490 kg.

What engine does the Oliver / Fiat 1250 (4 WD) have?

4 cylinders, 2,270 cm³ displacement, Diesel/Benzin.

How fast does the Oliver / Fiat 1250 (4 WD) go?

Top speed is 25 km/h.

What are the dimensions of the Oliver / Fiat 1250 (4 WD)?

2,997 mm × 1,283 mm × 1,300 mm.

When was the Oliver / Fiat 1250 (4 WD) built?

Production years: 1965–1969.

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.
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 24 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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