The O-ring with code number H 82514 is a fundamental sealing component in the ASL25 diesel engine from Adriadiesel/Jugoturbina/Zgoda/Sulzer. Designed to ensure leak-proof connections between engine components, this ring-shaped rubber element is crucial in preventing the escape of fluids or gases under pressure. Its elastic structure allows it to adapt tightly between metal surfaces, maintaining a secure seal even under thermal expansion or vibration. The O-ring is vital for engine efficiency and safety, especially in high-pressure fuel, oil, or air systems.