Deutz-Fahr Agrotron K 420
Built: 2008–2013 · Series: Agrotron K
More machines from model year 2008
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Deutz-Fahr Agrotron K 90 to K 420 – the compact mid-range version: K for short wheelbase and tight turning circle, Profiline as trim line, four- and six-cylinders, 62 to 85 kW, 4.44 to 4.85 t
The Agrotron K is the compact variant of Deutz-Fahr's mid-range tractor line: a shorter wheelbase and tighter turning circle than the standard version make it the preferred machine for cattle farming, front-loader work in the barn and on tight yards where the longer Agrotron models reach their limits. The type logic: the number after K on the Profiline models (K 90, K 100, K 110, K 120) gives roughly the power class in hp, Profiline marking the corresponding trim line; the K 420 belongs to a younger generation carrying three-digit model numbers like other SDF ranges. The engines range from a four-cylinder of just over 4 litres to a six-cylinder of just over 6 litres, one model also approved for biodiesel (B100).
Read on 3 more paragraphs
The register lists 5 versions with 61.8 to 84.6 kW, operating weights from 4,440 to 4,850 kg and lengths from 4,139 to 4,367 mm at widths of 2,250 to 2,256 mm and heights of 2,630 to 2,660 mm; the linkage lift capacity reaches up to 6,220 kg.
The Agrotron K competes with compact mid-range tractors such as the Fendt 200 Vario or the compact John Deere 6M and is common chiefly in dairy and beef cattle farming.
On used tractors, the condition of front-loader mounts and brackets, leak-free hydraulics and PTO, rust on cab and mudguards, the condition of clutch and gearbox and parts supply through the SDF dealer network are what count.
Sources: SpecCodex register, model data: Deutz-Fahr Agrotron K, Deutz-Fahr (Hersteller, SDF-Gruppe)
Technical data
Engine
| Fuel | Diesel, Biodiesel (B100)correct |
|---|---|
| Power | 100 hp (73 kW)correct |
| Rated speed | 2,300 rpmcorrect |
| Torque | 413 Nmcorrect |
| Cylinders | 4correct |
| Displacement | 4,038 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,139 mmcorrect |
|---|---|
| Width | 2,250 mmcorrect |
| Height | 2,630 mmcorrect |
| Wheelbase | 2,419 mmcorrect |
| Ground clearance | 470 mmcorrect |
| Unladen weight | 4,440 kgcorrect |
| Gross vehicle weight | 7,500 kgcorrect |
Drivetrain and chassis
| Drive | four-wheel drivecorrect |
|---|---|
| Gearbox | powershift transmission transmission 24V / 8Rcorrect |
| Front tyres | 480/65 R 24correct |
| Rear tyres | 540/65 R 34correct |
| Top speed | 40 km/hcorrect |
Working data
| Lifting capacity | 6,220 kgcorrect |
|---|---|
| Fuel tank capacity | 180 lcorrect |
Other data
| Linkage category | Cat II/IIIcorrect |
|---|
Where this model stands
Power-to-weight ratio: 16.4 kW/t (73 kW / 4.4 t)
Power class: Universal (40–100 hp)
Stronger than 65% 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-Fahr Agrotron K 420 have?
The Deutz-Fahr Agrotron K 420 delivers 100 hp.
How much does the Deutz-Fahr Agrotron K 420 weigh?
The unladen weight is 4,440 kg.
What is the gross vehicle weight of the Deutz-Fahr Agrotron K 420?
7,500 kg.
What engine does the Deutz-Fahr Agrotron K 420 have?
4 cylinders, 4,038 cm³ displacement, Diesel, Biodiesel (B100).
How fast does the Deutz-Fahr Agrotron K 420 go?
Top speed is 40 km/h.
How much does the rear linkage of the Deutz-Fahr Agrotron K 420 lift?
The rear linkage lifts 6,220 kg.
What are the dimensions of the Deutz-Fahr Agrotron K 420?
4,139 mm × 2,250 mm × 2,630 mm.
When was the Deutz-Fahr Agrotron K 420 built?
Production years: 2008–2013.
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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 26 individual figures for this model. They come from 3 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
The technical data on this page comes from official vehicle registration records (RDW/Traficom), not from the manufacturer.
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Other models in this series
Agrotron K 100 (Profiline)
Agrotron K 110 (Profiline)
Agrotron K 120 (Profiline)
Agrotron K 90 (Profiline)
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Traficom — Finnish vehicle register (retrieved August 2026) · Latvian open data portal (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
