Cylinder liner for MAN

The cylinder liner, part number 227WT09, is a cylindrical sleeve inserted into the engine block of MAN diesel engines. It provides the necessary sliding surface for the piston during operation and protects the engine block from direct friction and heat generated within the combustion chamber. This component is manufactured by MAN and is designed to maintain the required internal dimensions for piston movement and compression.

This liner is compatible with various MAN diesel engines used in heavy-duty trucks, buses, and industrial machinery. It functions as a replaceable barrier that manages the thermal transfer from the combustion area to the engine cooling system. By maintaining a precise internal surface, the liner ensures an effective seal with the piston rings, which is necessary for consistent engine compression and performance.

In internal combustion engines, cylinder liners serve as the primary wear surface for the piston assembly. They are engineered to withstand the mechanical stresses of the reciprocating piston and the thermal loads of the combustion process. Replacing the liner allows for the restoration of the cylinder bore without the need to replace the entire engine block.