Straight-six  Mercedes – Benz engines are manufactured to heavy-duty requirements. Two engines (displacement of 12.8 l and 15.6 l) and six output sizes enable the most efficient and economical option for any purpose. Extremely wide torque makes startups with heavy loads easier and reduce the need for gear shifting, which saves fuel and produces less emissions, as well as transmission wear reduces significantly.

Sisu Polar range features the world’s largest commercial vehicle manufacturer Daimler AG: s extensively tested high technology Euro VI engines. The Exhaust gas recirculation system (EGR), the SCR- catalytic converter that is combined to the Silencer unit, an oxidation catalytic converter and the particle filter in combination reduce nitrogen oxides, carbon monoxide, hydrocarbons and particulate emissions while still maintaining high power and low fuel consumption.

X -Pulse common rail technique, achieves efficient and clean burning of fuel, low consumption and low emissions. This system allows the sprayed fuel to be adjusted to droplet size, quantity and pressure; it is possible to increase the pressure up to 2100 bar.

The three-phase high-performance motor brakes fitted as standard equipment in Sisu Polar trucks improve driving safety and vehicle handling especially at heavy loads.  Thanks to this feature, the brakes last longer.