Sisu R-142 BPT-6X2
Built: 1977 · Series: R-142
More machines from model year 1977
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 R-142 – the collective page of the Finnish Sisu truck type in the register: six-cylinder diesel of 11,100 to 14,000 cm³, 183 to 276 kW, gross weight of 22 tonnes
This page gathers the Sisu R-142 – heavy trucks from the Finnish maker Sisu of Karis (Karjaa) in southern Finland. The type designation R-142 follows the maker's own system; the suffixes in the model names such as BPT, CST, CEV-LAV or DET-6X2 denote different chassis, axle and drivetrain versions of the same base type, with the digit combinations after them giving frame lengths and wheelbases.
Read on 3 more paragraphs
The register lists here 10 versions with 183 to 276 kW from six-cylinders of 11,100 to 14,000 cm³, unladen weights from 8,550 to 13,300 kg, a gross weight of 22,000 kg, lengths from 8,100 to 9,550 mm and widths from 2,400 to 2,550 mm.
With a gross weight of 22 tonnes and large-capacity six-cylinder diesels, the R-142 ranks among the heavy class of Finnish construction, long-haul and forestry trucks that Sisu built for decades for customers outside the large-volume makers. The range of axle and body variants shows use from flatbed through tipper to tanker, and the R-142's presence in this weight class put it in direct competition with the volume makers on Sisu's home market.
On a used example, the condition and mileage of the six-cylinder diesel, wear on clutch, gearbox and brakes at this weight, the condition of frame and body, and corrosion on cab and mudguards all matter. Drivetrain and chassis parts run through the Finnish Sisu service network, body parts through the respective body builders.
Sources: SpecCodex register, model data: Sisu R-142, Zulassungsdaten Traficom (Finnland)
Technical data
Engine
| Power | 183 kWcorrect |
|---|---|
| Displacement | 11,100 cm³correct |
Dimensions and weights
| Length | 8,400 mmcorrect |
|---|---|
| Width | 2,500 mmcorrect |
| Unladen weight | 9,350 kgcorrect |
Where this model stands
Power-to-weight ratio: 19.6 kW/t (183 kW / 9.3 t)
Stronger than 26% 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 R-142 BPT-6X2 have?
The Sisu R-142 BPT-6X2 delivers 183 kW.
How much does the Sisu R-142 BPT-6X2 weigh?
The unladen weight is 9,350 kg.
What engine does the Sisu R-142 BPT-6X2 have?
11,100 cm³ displacement.
What are the dimensions of the Sisu R-142 BPT-6X2?
8,400 mm × 2,500 mm.
When was the Sisu R-142 BPT-6X2 built?
Production years: 1977.
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 6 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
Sources: Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
Truck in 3D section
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