Technical register for agricultural, construction and commercial machinery · sourced data

Ifor Williams HB 401 R – specifications

Built: 2005 · Series: Other models

Data for the version built 2005 · Data origin: Official register · sources

More machines from model year 2005

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

Ifor Williams builds the HB 401 R. According to the available register data, the vehicle dates from 2005. Dimensions: 4,250 mm long and 1,700 mm wide. Its kerb weight comes to 760 kg. Fully loaded, it may not exceed 1,600 kg. According to the Finnish vehicle register, one example of this model is on record.

Ifor Williams – other models: the collective register page for trailers outside the named ranges, class O2 up to 3.5 t, a wide model variety from GH to TA5G, 440 to 1,350 kg kerb weight

This page brings together trailers that the register could not assign to a named range within class O2 for trailers up to 3.5 t gross weight. The model list shows a wide spread of spellings and abbreviations – from GH and GX through HB and LM variants to TA5G-10 and TA5G-12 – some with an additional weight figure given directly in the model name, as in HB505R/2990.

Read on 3 more paragraphs

The register lists 28 versions here with kerb weights from 440 to 1,350 kg and gross vehicle weights from 1,600 to 2,700 kg. Lengths run from 3,200 to 6,800 mm, widths from 1,662 to 2,300 mm.

The model variety on this page reflects how differently trailers of the same weight class have been recorded over the years in workshop catalogues, parts lists and registration data: capitalisation, spacing and special characters change while the underlying vehicle type stays the same. For the used market, this means that technical dimensions are often more informative than the exact model designation when comparing listings.

When buying used, check the condition of the overrun brake and brake linings, play in the axles and suspension, tyre condition including the spare wheel, and corrosion on the chassis, floor panel and sides. Also check the lighting working across the full width, the condition of the load tie-down points and, where fitted, the ramps or tailgate, plus the completeness of the registration documents.

Sources: SpecCodex register, model data: Ifor Williams (weitere Modelle)

Technical data

Dimensions and weights

Length4,250 mmcorrect
Width1,700 mmcorrect
Unladen weight760 kgcorrect
Gross vehicle weight1,600 kgcorrect

Frequently asked questions

How much does the Ifor Williams HB 401 R weigh?

The unladen weight is 760 kg.

What is the gross vehicle weight of the Ifor Williams HB 401 R?

1,600 kg.

What are the dimensions of the Ifor Williams HB 401 R?

4,250 mm × 1,700 mm.

When was the Ifor Williams HB 401 R built?

Production years: 2005.

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 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) · Data sources and cross-checks

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