D9612 Construction

The Liebherr diesel engine D9612 in-V arrangement with a displacement of 27 liters can achieve a power output of 900 kW at 1800 revolutions. The robust design of the D9512 is built to withstand the harshest conditions of the construction and agriculture industries. This twelve-cylinder engine comes with an integrated centrifugal water pump and closed crankcase ventilation system, ultrafine fiber oil filter, fuel fine filter on engine as well as twin scroll turbocharger that considerably improve fuel consumption. Our engine condition monitoring solution and LiDIA diagnostic tool, together with a long life service further extend reliability and minimize engine down time.

Configuration V-engine
Number of cylinders 12
Displacement 27.0 l
Rated power 640 - 900 kW
Rated speed 1,800 rpm
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What's inside

  • Robust and highly efficient

  • Low total cost of ownership

  • Improved fuel consumption

    thanks to a twin scroll turbocharger

  • Longer service intervals

    thanks to an integrated fuel fine filter

  • Long oil change interval

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Technical data
Configuration V-engine
Number of cylinders 12
Bore 135 mm
Stroke 157 mm
Displacement 27.0 l
Rated power 640 - 900 kW
Rated speed 1,800 rpm
Peak torque 5.100 Nm at 1.400 rpm
Compression ratio 15:1
Dimensions (L/W/H) 2.117/ 1.361 / 1.355 mm
Dry weight 2,350 kg
Emission standards EPA Tier 0 (Fuel consumption optimised) / EPA Tier 2 / EPA Tier 4f / IMO II
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Options available for the engine:

  • Several high power Take-off

  • Cold start kits for any temperature conditions

  • Efficient engine brake system

  • Remote fuel and oil filters

  • Air compressor

  • Several oil sumps design for all packaging installation, with oil level sensor

  • Several oil filling and dipstick position

  • Air condition accessories

  • Generator

  • Double-starter configuration

  • Several SEA-flywheel options

  • Fan drives

  • Turbocharger connections

  • Several air and water connections

  • Finger guard

  • Two service-sides

  • LiDIA diagnostic tool

  • Engine Condition monitoring

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Customer Service

The services of the components division in the Customer Service area are individually tailored to the needs of our customers.

Customer Service

Reman program

Within the scope of the Reman Program, used Liebherr components are remanufactured in accordance with industrial standards.

Reman Program

Connected components

Diagnose and monitor the health, maintenance and performance of your engine.

Connected Components