The bolt K 71033 is a high-strength fastening element used to secure the pump impeller to the drive shaft in the Sulzer ZV40/48 engine. Designed to withstand significant centrifugal forces, dynamic loads, and continuous rotational stress, this bolt maintains a secure mechanical connection under demanding operating conditions. Its precise threading and controlled material properties ensure proper preload and resistance to loosening, even in the presence of vibration and thermal variation. Manufactured from durable, high-grade materials, the K 71033 bolt plays a critical role in preserving the integrity of the pump assembly, ensuring efficient power transmission and reliable pump operation.