Cylinder liner for Liebherr D904

The cylinder liner 439WN02 serves as the internal wall of the cylinder block in the Liebherr D904 engine. It creates the chamber where the piston moves and combustion occurs, facilitating the generation of power within the engine assembly. By providing a precise surface for the piston rings to travel against, this component helps maintain the internal pressure required for engine operation and assists in managing oil control within the cylinder bore.

This component is designed specifically for the Liebherr D904 engine. It is manufactured to meet the dimensional requirements of the engine block to ensure a correct fit during installation. Proper seating of the liner is necessary to support the piston assembly and maintain the integrity of the combustion space.

In internal combustion engines, cylinder liners are used to define the cylinder bore and provide a replaceable wear surface. They are subjected to the thermal and mechanical stresses of the engine cycle, separating the cooling system from the combustion process while housing the piston and rings.