Humbaur HN 357725
Built: 2020-2021 · Series: Trailers up to 3.5 t (Class O2)
More machines from model year 2020
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The Humbaur HN 357725 is a car trailer from Humbaur (EU vehicle class O2), built from 2020 to 2021. It is 9,370 mm long and 2,540 mm wide, weighs 1,296 kg unladen and has a permitted gross weight of 3,500 kg.
Payload for the Humbaur HN 357725, i.e. permitted gross weight minus unladen weight, is 2,204 kg. More than half of the gross weight is therefore available for cargo.
For the driving licence this means: category B allows combinations up to 3,500 kg, code 96 up to 4,250 kg permitted total mass. With a 3,500 kg trailer too little would remain for the towing vehicle even with code 96 – in practice a BE licence is needed, which covers trailers up to 3,500 kg. Being over 750 kg, the trailer must be braked, and the towing vehicle needs a braked towing capacity of at least 3,500 kg.
Among the 416 car trailers from Humbaur with a stated length, the Humbaur HN 357725 at 9,370 mm is among the longest (rank 42); the range runs from 3,190 to 14,594 mm. The Finnish vehicle register lists 3 units.
Humbaur car trailers up to 3.5 t (class O2) – from Atis, Balios and Carrus to box trailers: 645 versions, kerb weight 178 to 3,440 kg, widths up to 2,650 mm
Humbaur is a German family business based in Gersthofen near Augsburg, founded in 1957 by Anton Humbaur in Donauwörth as an agency for agricultural machinery; the firm moved to Gersthofen in 1980 and sold its first own car trailer in 1981. Since 1998 horse trailers have been among its core products, and today, under owner Ulrich Humbaur, the company builds around 60,000 trailers a year. This EU class O2 collective page groups all Humbaur trailers with a gross weight of 0.75 to 3.5 tonnes: from the Atis, Balios, Carrus and Equitos ranges (horse trailers with aluminium or poly bodywork) through Ftk platform trailers to simple open box trailers; the number in the type name, such as 2000, 2400 or 3500, by manufacturer logic usually denotes the load or weight class in kilograms.
Read on 3 more paragraphs
The register lists 645 versions with kerb weights from 178 to 3,440 kg, gross weights from 1,000 to 3,500 kg and widths from 1,460 to 2,650 mm; lengths range from 3,190 to 11,910 mm.
Humbaur is among Europe's largest trailer makers, and this collective page covers the full car-trailer range, from fire-brigade and site trailers to horse and simple load trailers; its main rivals are Böckmann, Westfalia and the Dutch makers of the Kempen region.
When buying used, check the condition of the coupling head and its damper, whether the overrun brake and its linkage work, the state of the axles and rubber-torsion suspension, frame corrosion especially at welds and axle mounts, the lighting system, the condition of the floor and tarpaulin or bodywork, and tyre age; spares are readily available through Humbaur's dense dealer network.
Sources: SpecCodex register, model data: Humbaur Anhänger bis 3,5 t (Klasse O2)
Technical data
Dimensions and weights
| Length | 9,370 mmcorrect |
|---|---|
| Width | 2,540 mmcorrect |
| Unladen weight | 1,296 kgcorrect |
| Gross vehicle weight | 3,500 kgcorrect |
Frequently asked questions
How much does the Humbaur HN 357725 weigh?
The unladen weight is 1,296 kg.
What is the gross vehicle weight of the Humbaur HN 357725?
3,500 kg.
What are the dimensions of the Humbaur HN 357725?
9,370 mm × 2,540 mm.
When was the Humbaur HN 357725 built?
Production years: 2020-2021.
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.
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 5 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
3326
ANH OFFENER KASTEN
All Comfort 3500
H
HAMBAUR
HD 35
HD 35 81 24
HD 356124
HD3000
HD35
HD3500
HDIV
Sources: Traficom — Finnish 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.
