Lag O-3-43 PT
Built: 2000-2002 · Series: O-3-43
More machines from model year 2000
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
Lag O-3-43: six three-axle class O4 semi-trailers from Bree, Belgium, unladen weight 6.98 to 8.02 t, gross vehicle weight 42 to 43 t, lengths 12.05 to 14.00 m
The O-3-43 range from Belgian maker Lag in Bree covers three-axle class O4 semi-trailers. The versions listed in the register, from O-3-43 01 to O-3-43 PT, differ in body and axle variant within the range. As with many semi-trailer ranges, equipment details such as axle count, braking system and underrun protection vary by order year and customer specification.
Read on 3 more paragraphs
The register lists 6 versions with unladen weights from 6,980 to 8,020 kg, gross vehicle weights from 42,000 to 43,000 kg, lengths from 12.05 to 14.00 m and widths from 2.50 to 2.55 m.
Lag builds semi-trailers mainly for heavy and special haulage; the three-axle layout of the O-3-43 range with its high gross vehicle weight is designed for maximum payload within European axle-load limits. The third axle spreads the high payload across more wheels, reducing axle load compared with two-axle semi-trailers of the same payload.
When buying used, what counts on three-axle semi-trailers of this weight class is the condition of axles, wheel bearings and the braking system, corrosion on the chassis and kingpin plate from sustained full load, the function of the lift axle where fitted, and the condition of the landing legs; a current inspection report should be in place before purchase. Checking that the chassis number matches the registration papers, and reviewing the service book, also belong to the pre-purchase inspection.
Sources: SpecCodex register, model data: Lag O-3-43
Technical data
Dimensions and weights
| Length | 12,052 mmcorrect |
|---|---|
| Width | 2,550 mmcorrect |
| Wheelbase | 9,260 mmcorrect |
| Unladen weight | 6,980 kgcorrect |
| Gross vehicle weight | 42,500 kgcorrect |
Drivetrain and chassis
| Top speed | 100 km/hcorrect |
|---|
Frequently asked questions
How much does the Lag O-3-43 PT weigh?
The unladen weight is 6,980 kg.
What is the gross vehicle weight of the Lag O-3-43 PT?
42,500 kg.
Up to what speed is the Lag O-3-43 PT approved?
Approved up to 100 km/h.
What are the dimensions of the Lag O-3-43 PT?
12,052 mm × 2,550 mm.
When was the Lag O-3-43 PT built?
Production years: 2000-2002.
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 9 individual figures for this model. They come from 2 recorded sources; 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
Sources: RDW — Dutch national vehicle register (retrieved August 2026) · 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.
