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.

Unit of Measurement

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

Technical data

Configuration In-line engine
Number of cylinders 6
Displacement 12.0 l
Power rating 400 kW
Rated speed 1900 min-1
Max. torque 2,600 Nm
Emission standards EPA Tier 4f / EU Stage IV / EU Stage IIIA / EU Stage V / IMO III / EPA Tier 0 (Fuel consumption optimised)
Bore 130 mm
Stroke 150 mm
Dry weight 1341 kg
Length 1,592 mm
Height 1,151 mm
Width 903 mm
Auxiliary outputs (PTO) 4
Flywheel housing SAE 1