Sisu SM 300-CA-KH
Built: 1988 · Series: SM
More machines from model year 1988
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
Sisu SM – heavy Finnish truck for forestry and construction work: six-cylinder diesel engines from 10 to 14 litres, 248 to 392 kW, axle configurations up to 8x2, gross weights up to 44 tonnes
Sisu is a Finnish truck maker with a plant in Kaipiainen and a long tradition as the main supplier of heavy military and special vehicles for the Finnish armed forces, as well as a provider of rugged chassis for forestry, construction and winter road maintenance across northern Europe. The SM range stands in this tradition and was built before the current E range (E11M/E12M), which is listed separately in the register; the letter combinations in the model names, such as CKH or CAKH, distinguish individual versions within the range, though their exact meaning cannot be conclusively resolved from the register alone. A straight-six diesel engine is fitted throughout. The register lists 131 versions with power outputs from 248 to 392 kW and displacements from 10,000 to 14,000 cm³, all with six cylinders. Unladen weights range from 6,800 to 24,750 kg, permissible gross weights from 20,000 to 44,200 kg at widths between 2,500 and 2,850 mm. With axle configurations up to 8x2 and bodies for round-timber haulage, tipper work or towing piste groomers, the SM range serves a niche segment in which Sisu traditionally competes against Volvo, Scania and its own, newer E range. On used examples, important points are rust on the frame and crane mounts on forestry vehicles, the condition of the rear-axle final drive and transfer case on multi-axle versions, the braking system including engine brake, the crane hydraulics on appropriately equipped vehicles, and spare-parts supply, which is limited outside Finland due to low production volumes.
Sources: SpecCodex register, model data: Sisu SM
Technical data
Engine
| Power | 298 kWcorrect |
|---|---|
| Cylinders | 6correct |
| Displacement | 14,000 cm³correct |
Dimensions and weights
| Length | 11,600 mmcorrect |
|---|---|
| Width | 2,800 mmcorrect |
| Unladen weight | 12,050 kgcorrect |
| Gross vehicle weight | 34,000 kgcorrect |
Drivetrain and chassis
| Gears | 4correct |
|---|
Where this model stands
Power-to-weight ratio: 24.7 kW/t (298 kW / 12.1 t)
Stronger than 54% of the trucks in the register — out of 25,242 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Sisu SM 300-CA-KH have?
The Sisu SM 300-CA-KH delivers 298 kW.
How much does the Sisu SM 300-CA-KH weigh?
The unladen weight is 12,050 kg.
What is the gross vehicle weight of the Sisu SM 300-CA-KH?
34,000 kg.
What engine does the Sisu SM 300-CA-KH have?
6 cylinders, 14,000 cm³ displacement.
What are the dimensions of the Sisu SM 300-CA-KH?
11,600 mm × 2,800 mm.
When was the Sisu SM 300-CA-KH built?
Production years: 1988.
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.
- 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
SM
SM 260
SM 260 CKH-41-6X2/590+130
SM 260 CKH-6X2
SM 270
SM 270 CAM-41-6X2
SM 270 CKH-44-6X2
SM 270 CKH-8X2
SM 282 CAM-41-6X2/610+132
SM 300
SM 300 CAKH-8X2
SM 300 CKH-44-6X2
Sources: Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
Truck in 3D section
Turn the model, look inside and click an assembly — each one is explained.