The cylinder liner, code P50610-12, is a critical wear component in the MAN L21/31 engine, forming the inner running surface of the cylinder where the piston operates. Designed to withstand high combustion pressures, temperatures, and continuous friction, the liner ensures optimal sealing, controlled oil consumption, and efficient heat transfer to the cooling system. Manufactured from high-quality, wear-resistant materials with precision machining, the cylinder liner plays a key role in maintaining engine efficiency, reliability, and extended service life in demanding marine and power generation applications.