Technical register for agricultural, construction and commercial machinery · sourced data
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Fiat Trattori 451 C

Built: 1958–1964 · Series: 100 er C-Baureihe

More machines from model year 1958

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With the 451 C, Fiat Trattori offers a model from the 100er C series. Production: 1958–1964. The engine delivers 40 hp (29.4 kW), has 4 cylinders, with a displacement of 2,270 cm³. Torque is 140 Nm. Rated speed is 2,300 rpm. The machine is 2,530 mm long, 1,640 mm wide and 1,300 mm high. The unladen weight is 2,510 kg. The wheelbase measures 1,318 mm. Ground clearance is 270 mm. Top speed is 10 km/h. Transmission: 6 V/2 R. The engine is water-cooled. The fuel is diesel. 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. The 100 er C-Baureihe series covers 3 models. 99 Fiat Trattori models across 9 series are on record.

Fiat Trattori 100 C – the 1970s farm tractors from Modena: 411 C to 451 C, four-cylinder diesel with 29.4 kW, 2,335 to 2,510 kg weight

Fiat Trattori, the agricultural machinery division of the Turin-based Fiat group, with production centred in Modena in northern Italy, built the 100 C range as a medium-power farm tractor for the European market in the 1970s. This page covers the three versions 411 C (CI), 431 C and 451 C, whose three-digit type number distinguishes the models within the range.

Read on 3 more paragraphs

The register lists 3 versions here with a uniform 29.4 kW rated output from a four-cylinder diesel engine of a constant 2,270 cc displacement. Kerb weight ranges from 2,335 to 2,510 kg, length is a constant 2,530 mm, width ranges from 1,110 to 1,640 mm, and height is 1,300 mm. Maximum torque is recorded at 140 Nm at a rated speed of 2,300 rpm.

With the 100 C range, Fiat Trattori served the mid-power segment in which numerous European makers such as Massey Ferguson, Deutz and Same competed for market share among medium-sized farms in the 1970s. The uniform four-cylinder engine across all three models points to a shared technical base with different equipment or axle configuration.

When buying a used Fiat Trattori from the 100 C range, check the condition of the injection pump and cylinder head, wear on the clutch and gearbox, and corrosion on the frame, bonnet and mudguards after decades of use. Spare parts for this generation are available through dealers in historic Fiat and New Holland agricultural machinery, as well as specialist mechanics.

Sources: SpecCodex register, model data: Fiat Trattori 100 C, New Holland (Nachfolgemarke)

Technical data

Engine

Fueldieselcorrect
Power40 hp (29.4 kW)correct
Rated speed2,300 rpmcorrect
Torque140 Nmcorrect
Speed at max. torque1,600 rpmcorrect
Cylinders4correct
Displacement2,270 cm³correct
Bore85 mmcorrect
Stroke100 mmcorrect
Compression ratio21.5correct
Coolingwater-cooledcorrect

Dimensions and weights

Length2,530 mmcorrect
Width1,640 mmcorrect
Height1,300 mmcorrect
Wheelbase1,318 mmcorrect
Ground clearance270 mmcorrect
Unladen weight2,510 kgcorrect

Drivetrain and chassis

Drivechain drivecorrect
Gearbox6 V/2 Rcorrect
Top speed10 km/hcorrect

Where this model stands

Power-to-weight ratio: 11.7 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 Fiat Trattori 451 C have?

The Fiat Trattori 451 C delivers 40 hp.

How much does the Fiat Trattori 451 C weigh?

The unladen weight is 2,510 kg.

What engine does the Fiat Trattori 451 C have?

4 cylinders, 2,270 cm³ displacement, Diesel.

How fast does the Fiat Trattori 451 C go?

Top speed is 10 km/h.

What are the dimensions of the Fiat Trattori 451 C?

2,530 mm × 1,640 mm × 1,300 mm.

When was the Fiat Trattori 451 C built?

Production years: 1958–1964.

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.
  • 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 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

Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · How we check the data

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