The spacer sleeve K 28027 is a precision positioning component used with the main rocker arm K 28005 in the Sulzer ZV40/48 engine, designed to maintain correct axial spacing and alignment within the rocker assembly. It ensures that the rocker arm operates within defined tolerances, preventing lateral movement and maintaining proper geometry of the valve actuation mechanism. Manufactured from durable materials with high dimensional accuracy, the spacer sleeve withstands mechanical loads, vibration, and thermal influences without deformation. By preserving alignment and reducing mechanical stress on adjacent components, the K 28027 spacer sleeve contributes to smooth operation, reduced wear, and enhanced reliability of the engine’s valve train system.