Merceron M343SRRPO
Built: 1998 · Series: Other models
More machines from model year 1998
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Merceron M343SRRPO: heavy O4-class EU trailer with a 34,000 kg gross weight, only 5,860 kg unladen weight and 28,140 kg payload
The Merceron M343SRRPO falls into EU trailer category O4 with a gross weight of 34,000 kg, the heavy trailers and semi-trailers above 10 tonnes used in long-haul haulage and industrial logistics behind suitably approved tractor units.
Read on 3 more paragraphs
At 12,400 mm long and 2,520 mm wide, the vehicle weighs only 5,860 kg unladen, leaving 28,140 kg of payload – more than four-fifths of the gross weight. The wheelbase is around 8,900 mm, roughly 72 percent of the overall length. That gives a payload share of around 83 percent of the gross weight.
An unladen weight of only about a sixth of the gross weight is typical of vehicles built to carry heavy, dense cargo such as bulk goods, steel or building materials rather than to be heavy structures themselves. Towing one requires licence category CE, since the gross weight is far above 3.5 tonnes. Under EU rules, O3 and O4 trailers must carry retroreflective contour markings at the rear and along the sides.
Buying a vehicle with such a high payload share used calls for a close look at the frame for deformation and cracking, since sustained overloading shows up here first. Also check the braking system, the axle bearings and, depending on the body style, the mounting of the load bed or side panels for wear. After a test drive it is also worth checking that the wheel nuts are properly torqued and inspecting the tyre tread depth.
Sources: SpecCodex-Register: Kennwerte des Modells Merceron M343SRRPO
Technical data
Dimensions and weights
| Length | 12,400 mmcorrect |
|---|---|
| Width | 2,520 mmcorrect |
| Wheelbase | 8,900 mmcorrect |
| Unladen weight | 5,860 kgcorrect |
| Gross vehicle weight | 34,000 kgcorrect |
Drivetrain and chassis
| Top speed | 100 km/hcorrect |
|---|
Frequently asked questions
How much does the Merceron M343SRRPO weigh?
The unladen weight is 5,860 kg.
What is the gross vehicle weight of the Merceron M343SRRPO?
34,000 kg.
Up to what speed is the Merceron M343SRRPO approved?
Approved up to 100 km/h.
What are the dimensions of the Merceron M343SRRPO?
12,400 mm × 2,520 mm.
When was the Merceron M343SRRPO built?
Production years: 1998.
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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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.
