Manufacturer unknown SEMI TRAILER
Built: 1989 · Series: Other models
More machines from model year 1989
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
Onbekend – trailers with unknown manufacturer in the Dutch RDW register: “unknown” instead of a brand for vehicles without type plate, military, glider and boat trailers, fairground and living wagons
Onbekend is Dutch for “unknown” and not a manufacturer: the entry that the registration authority RDW keeps in the manufacturer field when no manufacturer could be established at the registration of a trailer – because the type plate is missing, because the vehicle comes from military stocks, from abroad or from an estate, or because it was built decades ago without papers. This collective page accordingly shows vehicles of every kind: M 101 A2 and M1061A1 are trailers from US military stocks, Flugzeuganhänger and Flugzeugtransporter carry gliders, Boottrailer and Sportaanhanger boats, Kermiswagen, Geisterkasse, Geistervilla and Stagemobil the fairground and stage wagons, Jayco and Master the caravans; the abbreviations AHW and AWK stand for aanhangwagen, 2 and 3 assige aanhangwagen for the axle count, Paard Trailer for the horse trailer.
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The register lists 72 versions with kerb weights from 300 to 26,780 kg, gross weights from 800 to 30,000 kg, lengths up to 13,800 mm and widths from 1,500 to 2,600 mm.
The entry “unknown” is the register's honest answer to the variety of the trailer fleet – vehicles that are technically approved and in use, but whose origin nobody can document any more.
Anyone taking over such a trailer checks the registration certificate with particulars and inspection deadlines, frame and welds, axles, suspension and braking system, coupling, lighting and tyres; wear parts can be identified from the axle and brake brands fitted, usually Knott, AL-KO or BPW.
Sources: SpecCodex register, model data: Onbekend (Anhänger), Zulassungsdaten RDW (Niederlande), Herstellerfeld onbekend, RDW (niederländische Zulassungsbehörde)
Technical data
Dimensions and weights
| Length | 9,700 mmcorrect |
|---|---|
| Width | 2,340 mmcorrect |
| Wheelbase | 7,550 mmcorrect |
| Unladen weight | 1,640 kgcorrect |
| Gross vehicle weight | 4,340 kgcorrect |
Drivetrain and chassis
| Top speed | 100 km/hcorrect |
|---|
Frequently asked questions
How much does the Manufacturer unknown SEMI TRAILER weigh?
The unladen weight is 1,640 kg.
What is the gross vehicle weight of the Manufacturer unknown SEMI TRAILER?
4,340 kg.
Up to what speed is the Manufacturer unknown SEMI TRAILER approved?
Approved up to 100 km/h.
What are the dimensions of the Manufacturer unknown SEMI TRAILER?
9,700 mm × 2,340 mm.
When was the Manufacturer unknown SEMI TRAILER built?
Production years: 1989.
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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Know this machine better? Have a photo, a manual, or know that a figure is wrong? Add it to the register →
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.
