D956 A7 Diesel engine

The Liebherr diesel engine D956 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 D956 is especially suited for the harshest requirements. Series production is expected to begin in 2019.
Configuration In-line engine
Number of cylinders 6
Displacement 12.0 l
Power rating 250 - 400 kW
Max. torque 2,520 Nm
Emission standards EPA Tier 0 (Fuel consumption optimised) / EU Stage IIIA / EPA Tier 4f / EU Stage V

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 250 - 400 kW
Rated speed 1,900 rpm
Max. torque 2,520 Nm
Length 1,335 mm
Width 927 mm
Height 1,156 mm
Dry weight 1,153 kg
Emission standards EPA Tier 0 (Fuel consumption optimised) / EU Stage IIIA / EPA Tier 4f / EU Stage V