The weld-on piece K 81166 is a durable structural component designed to provide a stable mounting surface for the guide element within the Sulzer/Adriadiesel/Jugoturbina/Zgoda ZV40/48 engine. Manufactured to withstand thermal expansion, vibration, and continuous operational loads, this weldable part ensures precise positioning and secure integration into the engine’s support framework. Its robust design enhances the rigidity of the guide assembly, prevents misalignment over long operating periods, and contributes to the engine’s overall mechanical reliability.