The attachment shaft K 81163 is a precision-machined connector used to anchor and support the guide element in the ZV40/48 engine’s structural system. Built for high mechanical strength and resistance to vibration, the shaft ensures stable alignment and smooth interaction between moving and stationary components. Its accurate geometry guarantees proper fit and long-term durability, reducing wear and maintaining the integrity of the guidance system. As a key interface component, K 81163 contributes to consistent operational reliability and extended service life of the engine’s auxiliary assemblies.