A Volvo truck with a Volvo engine.

Four or six cylinders. 5.1 or 7.7 litres. Plenty of torque, power and a quick response to match. With Volvo’s diesel engines D5K or D8K you’ll always be best prepared for the demands of the inner city. Maximum productivity and profitability. Every time, every working day.

Try it yourself
Find your nearest Volvo dealer and book a test drive of the new Volvo FL.

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Euro 6

Euro 6 – never compromise.

The D5K and D8K have been constructed to comply with the strict European exhaust standards for diesel engines that are set to regulate the amount of pollutants. The Volvo solution to the Euro 6 demands has been to add a cooled exhaust gas recirculation (EGR) system to the engine, resulting in engines that fulfil the regulations but never give way when it comes to torque or power output. A true win-win, for everyone.

The D5K engine

D5K or D8K – find your perfect match.

The 4-cylinder Volvo D5K, now available for gross weights from 10 to 16 tonnes, is small and light-weight, yet the strongest in its class. For additional power, opt for the 6-cylinder D8K with up to 280 hp. Its impressive response and performance makes your transports quick and efficient, whether you work in city distribution or need a special-purpose truck, such as a Volvo FL 4×4.

Read more about engine efficiency

Volvo torque curve – a smooth ride guaranteed

The Volvo torque curve
– a smooth ride guaranteed.

Quick acceleration, easy low-speed handling, first-class power. The D5K and D8K engines produce a wider, flatter torque and a better response at low rpm. The maximum torque for the D5K is between 800 and 900 Nm while the D8K has a maximum torque between 950 and 1,050, which significantly lessens the need for changing gears. Volvo’s long experience in diesel-engine technology is immediately evident when comparing the engine’s torque curves.

Volvo Engines – plenty of power

We’ve got the power.

Whether you drive a truck with a D5K or a D8K engine doesn’t matter – you’ll always have all the power you need. For the D5K the power output is either 210 or 240 hp while the D8K boasts an output of either 250 or 280 hp. Paired with the excellent manoeuvrability and the lightning-quick response, the powerful engines will get you there quickly, efficiently and – above all – on time.

View the complete engine specifications

FL engine range

Hp kW Torque
D5K210 210 154 800 Nm
D5K240 240 177 900 Nm
D8K250 250 184 950 Nm
D8K280 280 206 1050 Nm


D5K240 prepared for biodiesel.

You can now get the D5K240 in a version prepared to run on pure biodiesel (B100) – and certified for Euro 6. Perfect if you want to make a difference to the environment while enjoying any incentives available on your market. For service intervals and further details, please talk to your Volvo dealer.

Diesel particulate filter

Controlled regeneration with the Diesel particulate filter.

The exhausts from the engine contain microscopic soot particles. In order to comply with today’s regulations, these soot particles are “trapped” and consumed in the DPF during the regeneration process, leaving behind a fine ash.

The D5K and D8K engines are equipped with a DPF filter that is easily monitored from the dashboard. The dashboard controls measure the filter’s status and warn you, well in time, before the need for an active regeneration is necessary in those cases where the automatic, passive regeneration is impossible, like when operating within an environmental zone.

A variety of power take-offs

Power take-off options.

In order to power your load-handling or other additional equipment, your truck must be fitted with an extra means of power supply – a power take-off. Add one or more to transfer power from the engine and power separate attachments such as a crane or a cement mixer. The Volvo FL features a wide variety of PTO:s that will fulfil any need for any type of distribution or transport assignment.

View the complete PTO and engine specifications

Our solution for Euro 6.

A closed loop butterfly, a turbo, a cooled EGR and more. The new engine components serve two main purposes: to improve gas-flow and make sure the exhausts reach the after-treatment system at optimum temperature.

Extra injector
A special diesel injector is used for heat management of the DOC and ensures the efficiency of the DPF and good SCR functionality

Diesel Oxidation Catalyst (DOC)
The DOC produces the NO₂ necessary for the DPF to efficiently combust the particulates. In cold conditions, it also provides the heat needed for regeneration.
Diesel Particulate Filter (DPF)
The filter collects particulate matter (PM) and stores it until it’s burned off during auto- regeneration.

Selective Catalytic Reduction (SCR)
In the mixing zone, the exhausts are sprayed with AdBlue. When they reach the catalysts, the nitrogen oxides (NOₓ) are efficiently transformed into harmless nitrogen gas and water.

Ammonia Slip Catalyst (ASC)
The last step before the tailpipe where the remaining ammonia (NH₃), if any, is removed.