Cylinder liner for Scania D7A/ B

The cylinder liner 89564110 serves as the internal sleeve for the engine block, providing a precise contact surface for the piston and its rings. It facilitates the reciprocating motion of the piston while maintaining the necessary seal for combustion within the Scania D7A/B engine. By housing the piston, it protects the cylinder block from direct friction and wear during operation.

This component is compatible with the Scania D7A/B engine series. It is manufactured to meet the specific dimensional requirements of this engine type, ensuring proper fitment within the block. Proper installation of the liner is necessary to maintain engine compression and support the overall function of the internal combustion system.

In heavy machinery and truck engines, cylinder liners are used to define the bore of the cylinder. They are designed to be replaceable, allowing for the restoration of the cylinder wall surface without requiring the replacement of the entire engine block. This allows for maintenance of the piston-to-cylinder clearance, which is required for efficient engine performance and oil control.