Cylinder liner for Scania FH16

The cylinder liner is a critical component within the engine block that defines the cylinder bore and provides a precise sliding surface for the piston and piston rings. It serves as the primary wall of the combustion chamber, containing the high-pressure gases generated during the power stroke while managing the thermal transfer from the combustion process to the engine coolant circulating through the block. By maintaining a consistent internal diameter and surface finish, the liner ensures proper ring sealing and efficient engine operation.

This component is designed for use in the Scania FH16 engine, which is commonly found in heavy-duty industrial trucks and crane applications. The part number 14-404770-00 is engineered to meet the specific dimensional and thermal requirements of this engine series. Proper installation and maintenance of the cylinder liner are necessary to maintain compression levels and prevent oil consumption issues that arise from internal surface wear or scoring.

In internal combustion engines, the cylinder liner separates the piston assembly from the engine block cooling passages. This arrangement allows for the use of specialized materials that are optimized for friction reduction and heat dissipation, which are distinct from the requirements of the main engine block casting. The liner is a replaceable element that allows for the restoration of the cylinder bore geometry during engine overhauls.