The Pierburg Secondary Air Injection Control Valve - 728238560 is a component used in vehicle emission control systems. It is responsible for controlling the flow of secondary air into the exhaust system, which helps reduce harmful emissions. This valve is designed to open and close at specific times during the engine's operation, allowing the correct amount of secondary air to enter the exhaust system. It is a vital part of the vehicle's emission control system and helps ensure compliance with environmental regulations. The Pierburg Secondary Air Injection Control Valve - 728238560 is a high-quality, reliable component that is essential for maintaining a clean and efficient vehicle.