Valtra/valmet 8400
Built: 1993–2004 · Series: MEGA-Baureihe
More machines from model year 1993
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8400 (MEGA-Baureihe series) by Valtra/Valmet: six-cylinder diesel engine rated at 103 kW (140 hp), built between 1993 and 2004.
The MEGA-Baureihe series was created under the Valmet brand, before the Finnish tractor builder later began operating as Valtra and joined the AGCO group. The series covered the upper mid-class of the 1990s and early 2000s.
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The 8400 is powered by a six-cylinder diesel engine of 6,593 cm³ displacement, delivering 103 kW (140 hp) and 520 Nm of torque at 2,200 rpm. At an unladen weight of 5,040 kg, a wheelbase of 2,558 mm and a top speed of 30 km/h, the tractor is a strong representative of the upper power class of its time.
Six-cylinder tractors of this power class handled heavy soil cultivation in the 1990s through the three-point linkage to ISO 730 and drove large implements through the 540 or 1,000 rpm power take-off. The high torque of 520 Nm at a moderate rated speed provided powerful pulling without constantly revving the engine.
On a used 8400 from this long production run, it is worth pinning down the exact build year from the chassis number, since equipment and technology could change over eleven years of production. The six-cylinder engine should also be checked for oil consumption, and the clutch for wear. Hoses and lines should also be checked for material fatigue after so many years of service. A test drive and a check of every lever and control also belong to a thorough inspection. The overall condition of the paint and sheet metal also gives clues about how the machine was stored over the years.
Sources: SpecCodex-Register: Kennwerte des Modells 8400
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 140 hp (103 kW)correct |
| Rated speed | 2,200 rpmcorrect |
| Torque | 520 Nmcorrect |
| Cylinders | 6correct |
| Displacement | 6,593 cm³correct |
| Bore | 108 mmcorrect |
| Stroke | 120 mmcorrect |
| Compression ratio | 16.5correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,844 mmcorrect |
|---|---|
| Width | 2,298 mmcorrect |
| Height | 2,790 mmcorrect |
| Wheelbase | 2,558 mmcorrect |
| Ground clearance | 510 mmcorrect |
| Unladen weight | 5,040 kgcorrect |
Drivetrain and chassis
| Drive | four-wheel drivecorrect |
|---|---|
| Gearbox | 12 V/12 R, 24 V/24 R and 36 V/36 Rcorrect |
| Front tyres | 16.9 R 28 AScorrect |
| Rear tyres | 20.8 R 38 AScorrect |
| Top speed | 30 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 20.4 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 Valtra/valmet 8400 have?
The Valtra/valmet 8400 delivers 140 hp.
How much does the Valtra/valmet 8400 weigh?
The unladen weight is 5,040 kg.
What engine does the Valtra/valmet 8400 have?
6 cylinders, 6,593 cm³ displacement, Diesel.
How fast does the Valtra/valmet 8400 go?
Top speed is 30 km/h.
What are the dimensions of the Valtra/valmet 8400?
4,844 mm × 2,298 mm × 2,790 mm.
When was the Valtra/valmet 8400 built?
Production years: 1993–2004.
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 23 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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Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.