Unterholzner UPBSST 27/3
Built: 1992 · Series: Other models
More machines from model year 1992
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Unterholzner UPBSST 27/3 - trailer of EU class O4: 35,000 kg gross weight, 29,410 kg unladen weight, 14,940x2,520 mm, built 1992.
With a gross weight of 35,000 kg, the UPBSST 27/3 from Unterholzner belongs to the EU trailer class O4 (above 10,000 kg gross weight), the heavy trailers and semi-trailers towed behind tractor units or heavy trucks in long-haul and heavy-transport work. Year of manufacture 1992. Trailers in this class need a compressed-air brake system.
Read on 3 more paragraphs
With an unladen weight of 29,410 kg, that leaves a payload of 5,590 kg. The payload is small relative to the gross weight, which points to permanently fitted equipment rather than a plain load bed. The dimensions are 14,940 mm in length and 2,520 mm in width. The wheelbase is 8,950 mm.
Fifth-wheel or drawbar load and the design of the coupling decide which tractor unit suits a trailer like this. At this weight class the trailer is built for long-haul or heavy and abnormal-load work, not for occasional private use.
On a viewing, the brake cylinders, lines and the air system's tightness are among the first points to check. Lighting, wiring harness and plug connectors are common weak points on older trailers. Tyres and rims should be checked for age and even wear, especially if the trailer has stood unused for a while. On bodies with tarpaulins or side boards, the condition often only shows up on close inspection for leaks and deformation. Paperwork and the validity of the roadworthiness test belong to every viewing.
Sources: SpecCodex-Register: Kennwerte des Modells Unterholzner UPBSST 27/3
Technical data
Dimensions and weights
| Length | 14,940 mmcorrect |
|---|---|
| Width | 2,520 mmcorrect |
| Wheelbase | 8,950 mmcorrect |
| Unladen weight | 29,410 kgcorrect |
| Gross vehicle weight | 35,000 kgcorrect |
Drivetrain and chassis
| Top speed | 100 km/hcorrect |
|---|
Frequently asked questions
How much does the Unterholzner UPBSST 27/3 weigh?
The unladen weight is 29,410 kg.
What is the gross vehicle weight of the Unterholzner UPBSST 27/3?
35,000 kg.
Up to what speed is the Unterholzner UPBSST 27/3 approved?
Approved up to 100 km/h.
What are the dimensions of the Unterholzner UPBSST 27/3?
14,940 mm × 2,520 mm.
When was the Unterholzner UPBSST 27/3 built?
Production years: 1992.
What to check before buying
- Search the frame and welds at the axle mounts — that is where cracks start.
- Check the brakes and the last inspection in the papers.
- Work the gross weight against the towing vehicle before buying.
- Compare the chassis number with the papers.
- Look at the floor, cover or body from the inside — rust does not show from outside.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 8 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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Sources: RDW — Dutch national vehicle register (retrieved August 2026) · How we check the data
Trailer in 3D section
Turn the model, look inside and click an assembly — each one is explained.
