The Sulzer ZV 40/48 marine diesel engine features a cylindrical pin for the drive wheel, with part number K 46131 and code number K 46132. This cylindrical pin is a critical component that ensures the secure connection and smooth rotation of the drive wheel within the engine, transmitting mechanical power efficiently. Proper installation and periodic inspection of this pin are essential to prevent wear, misalignment, or failure, thereby maintaining the engine's reliability and optimal performance in demanding marine environments.