Cylinder liner for Mercedes-Benz OM302

The cylinder liner fits into the engine block to create the internal bore where the piston travels. It acts as a replaceable wear surface that protects the engine block from direct contact with the piston and rings while containing the combustion process. By maintaining the cylinder geometry, this component ensures the piston rings can effectively seal the combustion chamber to preserve engine compression and power output.

This specific liner is compatible with Mercedes-Benz OM302 and OM303 engine models. Proper installation of the liner is necessary to maintain the thermal transfer path from the piston to the engine cooling system. Cylinder liners are used in internal combustion engines to provide a renewable surface for the reciprocating assembly, allowing for the restoration of engine tolerances during major overhauls without requiring the replacement of the entire engine block.