Valmet 8400-4-4X4/256 – specifications
Built: 1993–1995 · Series: Other models
Data for the version built 1993–1995 · Data origin: Official register · sources
More machines from model year 1993
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The Valmet 8400-4-4X4/256 is a heavy agricultural tractor positioned within the 8400 series. Production of this model took place between 1993 and 1995. As an all-wheel-drive vehicle with four driven wheels and two steered axles, it is designed for demanding soil conditions. The construction follows the typical design of large tractors from this era, which are engineered for high traction and stability during heavy fieldwork.
The tractor is powered by a six-cylinder diesel engine with a displacement of 6,590 cm³, delivering an output of 103 kW. This engine configuration enables the towing of large mounted implements and heavy trailers under adverse conditions. The unladen weight of 4,960 kg ensures good traction, while the gross vehicle weight rating of 11,000 kg defines the maximum permissible load. The dimensions, with a length of 4,750 mm and a width of 2,535 mm, require careful planning for transport on public roads. The transmission offers nine gears, allowing for a coarse but effective gear ratio spread for various working speeds.
Based on the available data, a direct classification through adjacent models in the series is not possible. Tractors in this weight class and power category are typically used for intensive soil cultivation, pulling heavy plows, or operating large manure spreaders. The combination of high curb weight and all-wheel drive makes them a cornerstone in the operation of large agricultural areas.
Valmet – other models: the collective page of Finnish tractors outside the named ranges, from the Valmet 20 through the 300 to 700 types to the Mezzo range 6100 to 6850, 11 to 120 kW
This page gathers the Valmet tractors the register could not assign to a named range – from the first tractor designed in Finland to the Mezzo models of the 1980s and 1990s. Valmet emerged from the state-owned Finnish engineering combine Valtion Metallitehtaat and built its own tractors from 1951, starting with the Valmet 15 and the Valmet 20 presented in 1956. The type logic changed over the decades: the three-digit types of the 1960s and 1970s such as 305, 359, 455, 505, 605 and 700 order the power class in ascending order, the suffix -4 and -4X4 marks four-wheel-drive models, the number after the slash an internal equipment or transmission code; the 6000 range (Mezzo) of the 1980s and 1990s from 6100 to 6850 replaced the older ranges. In 1997 the brand passed to Valtra after the sale to the engine maker Sisu.
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The register lists here 112 versions with 11 to 120 kW from three- to six-cylinders of 1,400 to 7,400 cm³, unladen weights from 780 to 6,640 kg, gross weights from 1,250 to 13,000 kg, lengths from about 2,490 to 5,250 mm and widths from 1,430 to 2,640 mm.
Valmet was one of the leading brands in Finland and Scandinavia for decades and shaped the Nordic farm-machinery market with cold-resistant engineering – sturdy cab heating, cold-start-capable diesel engines, sealed drivetrains; part of the output was exported to the former Soviet Union and to Eastern Europe, where the simple technology and parts supply were valued.
On used tractors, rust on panels and cab, clutch and synchro gearbox, hydraulic pump and PTO count on the older ranges, and electronics, cab mounting and engine condition on the Mezzo models of the 6000 range; parts for most model years now run through the Valtra network, which has continued the brand since the 1997 renaming.
Sources: SpecCodex register, model data: Valmet (weitere Modelle), Valtra (Rechtsnachfolger von Valmet)
Technical data
Engine
| Power | 103 kWcorrect |
|---|---|
| Cylinders | 6correct |
| Displacement | 6,590 cm³correct |
Dimensions and weights
| Length | 4,750 mmcorrect |
|---|---|
| Width | 2,535 mmcorrect |
| Unladen weight | 4,960 kgcorrect |
| Gross vehicle weight | 11,000 kgcorrect |
Drivetrain and chassis
| Gears | 9correct |
|---|
Where this model stands
Power-to-weight ratio: 20.8 kW/t (103 kW / 5 t)
Power class: Large (100–180 hp)
Stronger than 81% 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 Valmet 8400-4-4X4/256 have?
The Valmet 8400-4-4X4/256 delivers 103 kW.
How much does the Valmet 8400-4-4X4/256 weigh?
The unladen weight is 4,960 kg.
What is the gross vehicle weight of the Valmet 8400-4-4X4/256?
11,000 kg.
What engine does the Valmet 8400-4-4X4/256 have?
6 cylinders, 6,590 cm³ displacement.
What are the dimensions of the Valmet 8400-4-4X4/256?
4,750 mm × 2,535 mm.
When was the Valmet 8400-4-4X4/256 built?
Production years: 1993–1995.
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.
- 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 9 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.
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
455-4
504/2110
6300-4-4X4/233
6400-4-4X4/233
6550-4
702/2240
705/2390
802-4X4
8550-4-4X4/275
VALMET 15
Valmet 602
Sources: Traficom — Finnish vehicle register (retrieved August 2026) · Data sources and cross-checks
Tractor in 3D section
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