The sealing ring H 16523 is a critical component used to achieve leak-free operation in key interfaces of the Sulzer ASL25 engine. Engineered for resistance to oil, temperature variation, and mechanical stress, it maintains elasticity and sealing effectiveness over extended service intervals. By ensuring a secure barrier against fluid loss and ingress of contaminants, this sealing ring protects adjacent components, reduces maintenance requirements, and contributes to the long-term reliability and efficiency of the engine’s fluid-handling systems.