Yanmar FK663 4WD
Series: Other models
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As a tractor, the Yanmar FK663 belongs to the Yanmar 4WD Tractor series. Under the bonnet works a four-cylinder engine displacing 3.3 litres, producing 47 kW. Rated power is reached at 2,500 rpm.
It will not go faster than 32 km/h — a working pace, not a travelling one. Unladen, it tips the scales at 2,375 kg.
Within the range, rated power spans from 9.2 to 69.9 kW; with 47 kW, the FK663 sits in the upper third. Directly alongside are the US601 with 44.1 kW below and the T80 with 58.9 kW above.
Technical data
Engine
| Engine model | 4TNV106Tcorrect |
|---|---|
| Power | 47 kWcorrect |
| Rated speed | 2,500 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 3,318.4 cm³correct |
Dimensions and weights
| Ground clearance | 385.1correct |
|---|---|
| Unladen weight | 2,375 kgcorrect |
Drivetrain and chassis
| Gearbox type | Power shiftcorrect |
|---|---|
| Forward gears | 18correct |
| Reverse gears | 18correct |
| Tyre size | Front 8.30-20 6PR, Rear 12.4-32 6 PRcorrect |
| Top speed | 31.5 km/hcorrect |
Working data
| Fuel tank capacity | 65.1 lcorrect |
|---|
Other data
| Height | 2,487.2correct |
|---|
Where this model stands
Power-to-weight ratio: 19.8 kW/t (47 kW / 2.4 t)
Power class: Universal (40–100 hp)
Stronger than 45% of the tractors in the register — out of 15,240 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Yanmar FK663 have?
The Yanmar FK663 delivers 47 kW.
How much does the Yanmar FK663 weigh?
The unladen weight is 2,375 kg.
What engine does the Yanmar FK663 have?
4 cylinders, 3,318 cm³ displacement.
How fast does the Yanmar FK663 go?
Top speed is 31.5 km/h.
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.
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 14 individual figures for this model. They come from 2 recorded sources; 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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Other models in this series
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.