D946 A7 Diesel engine

The Liebherr diesel engine D946 A7 with 6 cylinders in inline-arrangement and a displacement of 12 liters has a maximum power of 400kW at 1,900 revolutions. The engine features for regulated and unregulated markets identical performances, the same requirements for the machine‘s cooling system, and the same interfaces when installed. This enables the customer to use the same device design for different emission standards. Further, the robust design of the D946 is especially suited for the harshest requirements.

Configuration In-line engine
Number of cylinders 6
Displacement 12.0 l
Power rating 400 kW
Max. torque 2,600 Nm
Emission standards EU Stage V / EPA Tier 4f / EU Stage IV / IMO III / EU Stage IIIA / EPA Tier 0 (Fuel consumption optimised)

Technical data

Configuration In-line engine
Number of cylinders 6
Flywheel housing SAE 1
Bore 130 mm
Stroke 150 mm
Displacement 12.0 l
Power rating 400 kW
Rated speed 1,900 min-1
Max. torque 2,600 Nm
Dry weight 1,341 kg
Length 1,592 mm
Width 903 mm
Height 1,151 mm
Auxiliary outputs (PTO) 4
Emission standards EU Stage V / EPA Tier 4f / EU Stage IV / IMO III / EU Stage IIIA / EPA Tier 0 (Fuel consumption optimised)