G9512 Gas engine

The Liebherr gas engine G9512 with 12 cylinders in V-arrangement and a displacement of 25 liters has a maximum power of 516kW at 50Hz and of 600kW at 60Hz, respectively. With a mechanical efficiency rating of over 41%, gas engines from Liebherr offer the best efficiency values of their perfomance category. A "plug & play" solution guarantees an easy integration into every application.
Gallery loading.
Power rating at 50Hz / 60Hz 516 kW / 600 kW
Rated speed at 50Hz / 60Hz 1,500 rpm / 1,800 rpm
Mechanical efficiency 41.7 %
Fuel Natural gas

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Full equipment availability Yes
Configuration V-engine
Number of cylinders 12
Displacement 25.0 dm³
Bore 130 mm
Stroke 157 mm
Dry weight 2,318 kg
Dimensions (L/W/H) 1,550 / 1,200 / 1,550 mm
Rated speed at 50Hz / 60Hz 1,500 rpm / 1,800 rpm
Power rating at 50Hz / 60Hz 516 kW / 600 kW
Max. effect. mean pressure at 50Hz / 60Hz 16,5 bar / 16,0 bar
Air ratio λ 1.60
Flywheel housing SAE 0
Mass moment of inertia 3.86 kg*m²
Mechanical efficiency 41.7 %
Fuel Natural gas
Emission standards TA Luft / TA Luft ½
Areas of application Decentral energy systems

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Liebherr develops and produces diesel and gas engines, injection systems, hydraulic components and splitter boxes in Bulle (Switzerland). Liebherr Machines Bulle SA

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