Volvo FMX 420
Built: 2011-2017 · Series: FMX
More machines from model year 2011
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Volvo FMX – the construction and off-road variant of the FM from Gothenburg: portal axles, 6x4 to 10x4 axle configurations, D11/D13/D16 engines, 278 to 405 kW, up to 53 tonnes gross weight
The FMX is Volvo's construction and off-road variant of the FM, in the range since 2010 and built at the Tuve plant near Gothenburg. It takes over the cab and basic structure of the FM but gets a reinforced frame, greater ground clearance and portal axles for use in quarries, mining and on construction sites. The type designation gives the power in hp after FMX – FMX 460 is thus about 460 hp – the abbreviation EEV stands for the voluntary Enhanced Environmentally friendly Vehicle emission standard, Tridem for the triple rear axle on tippers, and the axle formula (6x4, 6x6, 8x4, 8x6, 10x4) for the number of driven wheels and total axles. The FMX is powered by Volvo's own in-line six-cylinder D11, D13 and D16 engines.
Read on 3 more paragraphs
The register lists here 35 versions with 278 to 405 kW from six-cylinders of 10,837 to 12,780 cm³ displacement, unladen weights from 11,766 to 25,745 kg, gross weights from 19,300 to 53,000 kg, lengths from 7,600 to 13,520 mm and widths from 2,500 to 2,800 mm.
In the construction segment the FMX competes chiefly with the Mercedes-Benz Arocs, the Scania XT and the MAN TGS; it is common as a tipper, mixer chassis, mining haul truck and with crane bodies, and is regarded as particularly capable off-road thanks to the sturdy portal axles and high ground clearance.
On used examples, the condition of the portal axles and differential locks, wear on the clutch and brakes from construction-site use, frame cracks under tipper bodies, the service history of the D11/D13/D16 engines and corrosion on the underrun protection and frame extensions all count; spare parts run through the Volvo dealer network.
Sources: SpecCodex register, model data: Volvo FMX, Volvo Trucks (manufacturer)
Technical data
Engine
| Power | 315 kWcorrect |
|---|---|
| Cylinders | 6correct |
| Displacement | 12,780 cm³correct |
Dimensions and weights
| Length | 8,950 mmcorrect |
|---|---|
| Width | 2,550 mmcorrect |
| Wheelbase | 6,420 mmcorrect |
| Unladen weight | 18,200 kgcorrect |
| Gross vehicle weight | 43,000 kgcorrect |
Drivetrain and chassis
| Gears | 12correct |
|---|---|
| Wheels | 8correct |
Where this model stands
Power-to-weight ratio: 17.3 kW/t (315 kW / 18.2 t)
Stronger than 62% of the trucks in the register — out of 25,242 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Volvo FMX 420 have?
The Volvo FMX 420 delivers 315 kW.
How much does the Volvo FMX 420 weigh?
The unladen weight is 18,200 kg.
What is the gross vehicle weight of the Volvo FMX 420?
43,000 kg.
What engine does the Volvo FMX 420 have?
6 cylinders, 12,780 cm³ displacement.
What are the dimensions of the Volvo FMX 420?
8,950 mm × 2,550 mm.
When was the Volvo FMX 420 built?
Production years: 2011-2017.
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 13 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
330 EEV 8X4
370 4X4
380 6X6R
410 6X6
410 8X2
420 10X4
420 6X6R
420 EEV 6X4
460 10X4 MIDLIFT
460 6X4R
460 6X6
460 8X6R
Sources: RDW — Dutch national vehicle register (retrieved August 2026) · How we check the data
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