The right-hand camshaft K 42104, located on the damper side, is a critical timing and mechanical-control component of the Adriadiesel/Jugoturbina/Zgoda/Sulzer ZV40/48 engine. Its principal function is to convert precisely synchronized rotary motion into the controlled mechanical actions required by the corresponding engine mechanisms, ensuring that these functions occur at the correct stages of the operating cycle. The geometry and angular positioning of the cam profiles, together with shaft straightness, journal dimensions, bearing clearances, and correct alignment with the camshaft drive, are essential for maintaining accurate engine timing and consistent performance. During heavy-duty marine and stationary operation, the K 42104 camshaft is subjected to repeated contact stresses, torsional loads, vibration, bearing forces, and prolonged continuous service, making effective lubrication, wear resistance, and dimensional stability particularly important. During overhaul, the cam profiles, journals, bearing surfaces, drive connections, and lubrication passages should be carefully inspected for wear, scoring, deformation, or other abnormalities. By providing precise and repeatable mechanical control on the damper side, the K 42104 right-hand camshaft contributes to correct engine timing, stable operation, reduced mechanical wear, and dependable long-term performance of the ZV40/48 engine.