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Deutz Allis 7120

Built: 1986–1989 · Series: 7.100 er- Serie

More machines from model year 1986

Source: https://www.tractordata.com/farm-tractors/003/1/7/3171-deutz

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The 7120 from Deutz Allis is part of the 7100er series. Production: 1986–1989. The engine delivers 124 hp (91.2 kW), has 6 cylinders, with a displacement of 6,128 cm³. Torque is 508 Nm. Rated speed is 2,300 rpm. The machine is 4,560 mm long, 2,370 mm wide and 2,784 mm high. The unladen weight is 5,100 kg. The wheelbase measures 2,687 mm. Ground clearance is 620 mm. Top speed is 30 km/h. The tank holds 151 litres. Transmission: 24 V/8 R or 32 V/8 R. The engine is air-cooled. Tyres: front 11.00-16 ASF (4 WD: 14.9-28 AS), rear 18.4 R 38 AS. The fuel is diesel. The bore measures 102 mm. The stroke is 125 mm. Maximum torque is reached at 1,702 rpm. Construction: unit construction (no separate frame). The linkage is category II/III. The PTO runs at 540/1000 rpm. The 7.100 er- Serie series covers 4 models. Rated output within it ranges from 89 to 146 hp; the 7120 sits in the upper part of that range with 124 hp. Its immediate neighbours are the 7110 below it with 112 hp and the 7145 above it with 146 hp. Unladen weight within it ranges from 3,840 to 5,400 kg; here the 7120 sits in the upper part of that range with 5,100 kg. 36 Deutz Allis models across 10 series are on record.

Deutz-Allis 7100 series – mid power class of the US brand active 1985 to 1990: Deutz engines, 65 to 107 kW, 7085 to 7145 models, transition to AGCO Allis

The Deutz-Allis 7100 series formed the mid power class of the American brand that produced tractors with Deutz engines from 1985 to 1990, built partly at Deutz-Fahr's plant in Lauingen and partly at White. The register covers the 7085, 7110, 7120 and 7145 models with four- to six-cylinder diesel engines.

Read on 3 more paragraphs

The register holds 4 versions rated at 65.4 to 107.4 kW (85 to 144 hp), with engines of 4,086 to 6,128 cm³ and four to six cylinders. Weights range from 3,840 to 5,400 kg, lengths from 4,178 to 4,770 mm, widths from 2,299 to 2,370 mm and heights from 2,642 to 2,789 mm. Torque falls between 320 and 523 Nm at 2,300 to 2,400 rpm.

The 7100 series targeted medium-sized arable farms, covering with models from 85 to 144 hp the segment between the smaller 6000s and the larger 8000s. When the brand ended in 1990, the models carried on under the successor brand AGCO Allis.

When buying used, check the engine and injection system, clutch and gearbox, and rust on the panels and mudguards. Spare parts availability is more limited than for current ranges, given the brand's short existence; parts mostly come through dealers specialising in Deutz-Fahr and Allis-Chalmers. Given the brand's short production run, it is also worth matching the serial number and data plate against available parts catalogues.

Sources: SpecCodex register, model data: Deutz Allis 7.100 er-Serie

Technical data

Engine

Fuel	dieselcorrect
Power	124 hp (91.2 kW)correct
Rated speed	2,300 rpmcorrect
Torque	508 Nmcorrect
Speed at max. torque	1,702 rpmcorrect
Cylinders	6correct
Displacement	6,128 cm³correct
Bore	102 mmcorrect
Stroke	125 mmcorrect
Cooling	air-cooledcorrect

Dimensions and weights

Length	4,560 mmcorrect
Width	2,370 mmcorrect
Height	2,784 mmcorrect
Wheelbase	2,687 mmcorrect
Ground clearance	620 mmcorrect
Unladen weight	5,100 kgcorrect

Drivetrain and chassis

Drive	rear- or four-wheel drivecorrect
Gearbox	24 V/8 R or 32 V/8 Rcorrect
Front tyres	11.00-16 ASF (4 WD: 14.9-28 AS)correct
Rear tyres	18.4 R 38 AScorrect
Top speed	30 km/hcorrect

Working data

Fuel tank capacity	151 lcorrect

Origin and approval

Construction	unit construction (no separate frame)correct

Other data

Linkage category	Cat II/IIIcorrect
PTO speed	540/1000 rpmcorrect

Where this model stands

Power-to-weight ratio: 17.9 kW/t (91 kW / 5.1 t)

Power class: Large (100–180 hp)

Stronger than 76% 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 Deutz Allis 7120 have?

The Deutz Allis 7120 delivers 124 hp.

How much does the Deutz Allis 7120 weigh?

The unladen weight is 5,100 kg.

What engine does the Deutz Allis 7120 have?

6 cylinders, 6,128 cm³ displacement, Diesel.

How fast does the Deutz Allis 7120 go?

Top speed is 30 km/h.

What are the dimensions of the Deutz Allis 7120?

4,560 mm × 2,370 mm × 2,784 mm.

When was the Deutz Allis 7120 built?

Production years: 1986–1989.

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 27 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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