Cylinder liner for Scania TD122

The cylinder liner, part number 478380, acts as the internal sleeve for the engine block in Scania TD122 engines. It provides the sliding surface for the piston as it moves during the combustion cycle. By separating the piston rings from the engine block, this component manages the internal environment of the cylinder and facilitates the transfer of heat from the combustion gases and the piston into the engine cooling system.

This component is compatible with the Scania TD122 engine. Proper installation ensures a seal between the liner and the engine block, which is necessary to maintain cylinder compression and prevent the leakage of combustion gases or coolant into the crankcase. Maintaining the integrity of the cylinder wall is necessary for the efficient operation of the engine under load.

Cylinder liners serve as the primary wear surface in an engine block. They allow for the restoration of the cylinder bore without requiring the replacement of the entire engine block. By providing a controlled surface for the piston rings, these liners help maintain the pressure levels required for effective combustion and power output in heavy machinery engines.