The upper spring plate H 55049 is a robust load-distribution component used within the fuel pump or valve spring assembly of the Sulzer ASL25 engine. Designed to provide precise seating and even force transmission from the spring to adjacent components, it helps maintain accurate mechanical operation under continuous cyclic loading. Engineered for dimensional stability, vibration resistance, and long-term durability, this spring plate reduces localized stress, prevents premature wear, and contributes to the overall reliability and consistency of the fuel or valve actuation system.