The fuel filter cartridge H 87511 is a critical filtration component designed to protect the Sulzer ASL25 engine’s fuel system from contaminants such as particulates, water residues, and impurities. Engineered for high filtration efficiency and consistent flow characteristics, this cartridge ensures clean fuel delivery to sensitive injection components. Its robust filter media and durable construction support long service intervals, reduce wear on fuel system parts, and contribute directly to stable combustion, improved engine reliability, and optimal performance in demanding marine and industrial operating conditions.