The Sulzer ASL25 diesel engine is celebrated for its robustness and efficiency, commonly used in marine and industrial settings for its dependable performance. Central to its maintenance and functionality is the spiral seal, a critical component designed to prevent leaks and ensure the engine operates smoothly. The spiral seal, identified by the code number H 81153, plays a vital role in maintaining the integrity of the engine's systems by providing a secure barrier against fluid escape, thereby enhancing the engine's reliability and longevity. This meticulous attention to detail in components like the spiral seal underscores Sulzer's dedication to engineering excellence.