Volvo FMFH 42 9.0E4

The register lists 6 versions with up to 364 kW from six-cylinder engines of 9,365 to 12,780 cc. Kerb weights range from 7,680 to 28,018 kg, gross vehicle weights from 18,200 to 37,000 kg. Lengths run from 5,950 to 11,100 mm, widths from 2,520 to 2,600 mm.

The span of roughly 9.4 to 12.8 litres of displacement shows that both D9 and D13 engines from the FM and FH series are gathered here; as tractor units and chassis for heavy-transport and box bodies they covered Volvo's middle to upper long-haul segment.

On a used example, checks should cover corrosion on the frame outriggers and spring brackets, the condition of the fifth-wheel coupling and air suspension on tractor units, and sealing of the charge-air cooler and exhaust aftertreatment on the six-cylinder engine; spare parts are widely available through Volvo's service network.

With gross vehicle weights from 18,200 to 37,000 kg, these chassis belong to EU class N3 (over 12 t); operating them requires a category CE driving licence, a tachograph and compliance with driving and rest times, plus, on most European long-haul roads, a distance-based toll. As tractor units, these chassis transfer the towed load through the fifth wheel to the semi-trailer, while heavy chassis versions with their own body are designed for heavy-transport applications.