Härmä Trailer HTL 602
Built: 2019 · Series: Other models
More machines from model year 2019
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Härmä Trailer HTL 602 – EU class O3 trailer: 3,650 kg gross vehicle weight, 2,820 kg payload, 7.40 m length, built in 2019.
With a gross weight of 3,650 kg, the Härmä Trailer HTL 602 falls into EU trailer class O3, covering trailers between 3.5 and 10 tonnes gross weight. Vehicles in this class sit between light car trailers and the heavy semi-trailers of long-distance haulage, and mostly run behind trucks or powerful tractors. They often carry building materials, agricultural equipment or palletised goods, loads for which a single car trailer would be too small and a semi-trailer too large. The name refers to the Härmä region in Finland.
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With an unladen weight of 830 kg, payload comes to 2,820 kg, more than three times the trailer's own weight. At 7.40 m long and 2.52 m wide, it is lightly built and its gross weight sits only just above the boundary with class O2.
Trailers of this size sit at the boundary between overrun brakes and air brake systems; both are found in practice at this weight range. Towing requires at least licence category BE, and behind a category C1 or C truck the combination is driven under C1E or CE. The exact type of brake system fitted also determines which inspection intervals and testing obligations apply to the trailer.
When buying a used unit, check the loading floor: rusted-through or rotten floorboards are a common weak point. Check the wheel bearings for play and overheating, test the overrun coupling for smooth action and worn damping, check the brake cables for corrosion, and check the lighting system for reliable operation. The trailer's papers should match the chassis number stamped into the frame.
Sources: SpecCodex-Register: Kennwerte des Modells Härmä Trailer HTL 602, Zulassungsdaten Traficom (Finnland)
Technical data
Dimensions and weights
| Length | 7,400 mmcorrect |
|---|---|
| Width | 2,520 mmcorrect |
| Unladen weight | 830 kgcorrect |
| Gross vehicle weight | 3,650 kgcorrect |
Frequently asked questions
How much does the Härmä Trailer HTL 602 weigh?
The unladen weight is 830 kg.
What is the gross vehicle weight of the Härmä Trailer HTL 602?
3,650 kg.
What are the dimensions of the Härmä Trailer HTL 602?
7,400 mm × 2,520 mm.
When was the Härmä Trailer HTL 602 built?
Production years: 2019.
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 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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Sources: Traficom — Finnish vehicle register (retrieved August 2026) · How we check the data
Trailer in 3D section
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