The Genuine Porsche Secondary Air Injection Pump Check Valve (911) - 99611325770 is a high-quality component designed specifically for use in Porsche 911 models. This check valve is responsible for regulating the flow of air in the secondary air injection system, which helps reduce emissions and improve engine performance. It is made from durable materials and has been rigorously tested to ensure optimal functionality and longevity. This genuine Porsche part is a direct replacement for the original check valve and is an essential component for maintaining the proper operation of your vehicle's secondary air injection system.