The Sulzer 12ZAV40S diesel engine, a robust and efficient marine engine, relies on various high-quality components to ensure its optimal performance. Key parts include the Needle Valve (KS 46022), which precisely controls fuel injection timing and quantity, essential for efficient combustion and performance. Another crucial component is the Screw Coupling (KS 46023), which securely connects various engine parts, ensuring stability and reducing vibration. Additionally, the O-Ring (KS 46025) provides vital sealing to prevent leaks, maintaining the engine's integrity and preventing fluid loss. These components collectively contribute to the reliable operation and longevity of the Sulzer 12ZAV40S diesel engine.