Cylinder liner for Scania D9A

The cylinder liner is a component within the engine block that creates the internal wall where the piston travels. It serves as a replaceable surface that maintains the seal for the combustion chamber, which is necessary for the engine to maintain proper compression and facilitate heat transfer during operation. This part is designed for the Scania D9A engine.

This specific cylinder liner, part number 8148060, is engineered for use in Scania D9A engines. It provides the required dimensional fit to ensure the piston and rings operate within the engine block. The internal surface is finished to support lubrication and minimize friction between the moving piston assembly and the cylinder wall.

Cylinder liners function as the primary interface for the piston rings, managing the thermal and mechanical stresses of the combustion cycle. By providing a controlled surface for the piston, the liner helps maintain the integrity of the combustion chamber and prevents the loss of gases or oil leakage into the crankcase. Regular inspection of the liner surface is standard practice during engine overhauls to ensure that the cylinder remains within the specified tolerances for effective operation.