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McCormick 523 (A)

Built: 6/1965–3/1972 · Series: CM-Baureihe

More machines from model year 1965

Source: https://commons.wikimedia.org/w/index.php?curid=21343162

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The McCormick 523 (A) belongs to the CM series. Production: 6/1965–3/1972. The engine delivers 48 hp (35.3 kW), has 3 cylinders, with a displacement of 2,934 cm³. Rated speed is 2,100 rpm. The machine is 3,110 mm long, 1,815 mm wide and 2,419 mm high. The unladen weight is 2,440 kg. The wheelbase measures 2,000 mm. Ground clearance is 380 mm. Top speed is 20 km/h. Transmission: 8 V/4 R or 12 V/4 R. The engine is water-cooled. Tyres: front 7.50-16 ASF (A: 9-24 AS), rear 11-32 AS (A: 14-30 AS). The fuel is diesel. The bore measures 98.4 mm. The stroke is 128.5 mm. Construction: unit construction (no separate frame). Around 17.571 units were built. The CM-Baureihe series covers 7 models. Rated output within it ranges from 26 to 74 hp; the 523 (A) sits in the middle of that range with 48 hp. Its immediate neighbours are the 453 below it with 45 hp and the 724 (A) above it with 67 hp. Unladen weight within it ranges from 1,876 to 3,925 kg; here the 523 (A) sits in the lower part of that range with 2,440 kg. 381 McCormick models across 40 series are on record.

McCormick CM series 323 to 824 – compact and mid-range tractors of the brand revived in 2001: three- and four-cylinder diesels, 19 to 54 kW, built by ARGO Tractors in Italy

The name McCormick goes back to Cyrus McCormick and his reaper company, which was absorbed into International Harvester in 1902 and served there as a tractor and harvester brand name into the 1980s. In 2001 the successor group, Case IH, sold the name rights to the Italian ARGO group (Landini, Valpadana), which has since run McCormick as an independent tractor brand headquartered in Fabbrico near Reggio Emilia. The CM series covers the compact and lower mid-range class; the type number orders the models from 323 to 824 by ascending power, and the suffix A marks an equipment variant of the larger 523, 724 and 824 models.

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The register lists here 7 versions with 19.1 to 54.4 kW (26 to 67 hp) from three- and four-cylinder diesel engines of 1,825 to 3,911 cm³, torque from 109 to 251 Nm at 1,900 to 2,300 rpm, unladen weights from 1,876 to 3,925 kg, lengths from 3,110 to 3,390 mm, widths from 1,504 to 1,990 mm and heights from 1,434 to 2,489 mm.

In this power segment the CM series targets smaller and medium-sized farms, fruit and wine growing, and municipal users, competing there with Same, Deutz-Fahr and the compact classes of Kubota and New Holland; production takes place at the Italian ARGO plants.

On used examples, what counts is operating hours and service history of the diesel engine, the condition of clutch and gearbox, the hydraulic system and PTO, and rust on wings and cab; parts run through the McCormick/ARGO dealer network, and the series shares some components technically with Landini.

Sources: SpecCodex register, model data: McCormick CM-Baureihe, McCormick (ARGO Tractors, Hersteller)

Technical data

Engine

Fuel	dieselcorrect
Power	48 hp (35.3 kW)correct
Rated speed	2,100 rpmcorrect
Cylinders	3correct
Displacement	2,934 cm³correct
Bore	98.4 mmcorrect
Stroke	128.5 mmcorrect
Cooling	water-cooledcorrect

Dimensions and weights

Length	3,110 mmcorrect
Width	1,815 mmcorrect
Height	2,419 mmcorrect
Wheelbase	2,000 mmcorrect
Ground clearance	380 mmcorrect
Unladen weight	2,440 kgcorrect

Drivetrain and chassis

Drive	rear- or four-wheel drivecorrect
Gearbox	8 V/4 R or 12 V/4 Rcorrect
Front tyres	7.50-16 ASF (A: 9-24 AS)correct
Rear tyres	11-32 AS (A: 14-30 AS)correct
Top speed	20 km/hcorrect

Origin and approval

Construction	unit construction (no separate frame)correct
Units built	17,571correct

Where this model stands

Power-to-weight ratio: 14.5 kW/t (35 kW / 2.4 t)

Power class: Universal (40–100 hp)

Stronger than 32% 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 McCormick 523 (A) have?

The McCormick 523 (A) delivers 48 hp.

How much does the McCormick 523 (A) weigh?

The unladen weight is 2,440 kg.

What engine does the McCormick 523 (A) have?

3 cylinders, 2,934 cm³ displacement, Diesel.

How fast does the McCormick 523 (A) go?

Top speed is 20 km/h.

What are the dimensions of the McCormick 523 (A)?

3,110 mm × 1,815 mm × 2,419 mm.

When was the McCormick 523 (A) built?

Production years: 6/1965–3/1972.

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 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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