These inline six-cylinder engines offer the latest generation of engine management and injection systems to produce highly efficient outputs. Generous torque is developed low down the rev range, resulting in easy driveability. 
   
There are four Euro 4 variants (340, 380, 420 and 470 hp) that will meet the needs of the vast majority of truck operators.

340 Euro 4
340 12-litre: 340 hp (250 kW) at 1800 r/min
1700 Nm between 1100 and 1350 r/min

380 Euro 4
380 12-litre: 380 hp (280 kW) at 1800 r/min
1900 Nm between 1100 and 1350 r/min

420 Euro 4
420 12-litre: 420 hp (309 kW) at 1900 r/min
2100 Nm between 1100 and 1350 r/min

470 Euro 4
470 12-litre: 470 hp (345 kW) at 1900 r/min
2200 Nm between 1100 and 1450 r/min
A special feature of all these engines is Scania HPI. Clean and efficient outputs are ensured by the adoption of refined technology known as Time Pressure Metering.

This advanced system allows constantly and infinitely variable minor adjustments to both timing of injection and volume of fuel used, resulting in consistently efficient performance. Refinement of the system is also exhibited by lower noise levels.

The 470 hp and 420 hp Euro-4 engines have the added benefit of Scania Turbocompounding. Here, a second turbocharger extracts yet more energy from exhaust gases to give a greater boost by adding momentum at the flywheel to enhance performance and economy.

Transmission options for the 12-litre series 
340 – New, fuel-saving 5- or 6-speed automatic transmission and 8-speed gearbox with Scania Opticruise.
380 – 8-speed gearbox with Scania Opticruise.
420 and 470 – New 12-speed with built-in Scania Opticruise for automated gearchanges. This innovative gearbox is perfectly harmonised with our top-of-the-line 420 and 470 hp turbocompound engines to give you smoother, faster shifting and optimum fuel economy in all conditions. More relaxed driving, more comfortable riding.