The Volvo FH includes a  14-speed range/splitter gearbox.

The gearbox has a wide range of gear ratios, and close, well balanced shift increments. This provides very high starting traction while also offering the capacity for high average speeds. The highest gear is a direct gear where power passes through the gearbox with minimal loses.

 The gearbox is divided into a forward basic unit and rear range housing. The basic unit is made of cast iron and contains three basic gears, an integrated splitter gear, and crawler and reverse gears. The clutch casing is made of aluminium, and combined with an aluminium range housing results in a gearbox with low weight.

The gearbox is fitted with a new cable link gear-changing mechanism, resulting in a vibration-free gear lever and distinct gear positions. The gearbox is also fitted with patented synchronization, which contributes to low gear changing forces and a high level of driver comfort. The gearnox  has extended oil change intervals for lower operating costs, and reduced environmental impact.