The main rocker arm, coded K 28005, is a critical component in the valve actuation system of the Sulzer ZV40/48 diesel engine. It transmits motion from the camshaft to the engine's valves, ensuring precise opening and closing for optimal air-fuel mixture and exhaust gas flow. This complete assembly is engineered to endure the intense mechanical loads and high-speed operations characteristic of large diesel engines. Its design emphasizes strength, durability, and precision, making it indispensable for consistent engine performance and fuel efficiency.