D934 A7 Diesel engine

The Liebherr diesel engine D934 A7 with 4 cylinders in inline-arrangement and a displacement of 7 liters has a maximum power of 200kW at 1,900 revolutions. Dynamic forces in a 4-cylinder engine are compensated for by a balance shaft. Therefore, the 4-cylinder engines from Liebherr have much lower vibrations and much smoother operation than comparable 4-cylinder engines. 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.
Configuration In-line engine
Number of cylinders 4
Displacement 7.0 l
Power rating 130 - 200 kW
Max. torque 1,245 Nm
Emission standards EU Stage V / EU Stage IV / EPA Tier 4f / EU Stage IIIA / IMO III / EPA Tier 0 (Fuel consumption optimised)

Technical data

Configuration In-line engine
Number of cylinders 4
Flywheel housing SAE 1 / SAE 2
Bore 122 mm
Stroke 150 mm
Displacement 7.0 l
Power rating 130 - 200 kW
Rated speed 1,500 - 1,900 rpm
Max. torque 1,245 Nm
Dimensions (L/W/H) 1,173 / 918 / 1,131 mm
Dry weight 900 kg
Auxiliary outputs (PTO) 4
Emission standards EU Stage V / EU Stage IV / EPA Tier 4f / EU Stage IIIA / IMO III / EPA Tier 0 (Fuel consumption optimised)