The Genuine Mercedes EGR Valve Gasket - 1121420280 is a high-quality gasket designed specifically for use in Mercedes vehicles. It is used to seal the connection between the EGR valve and the engine, preventing any leaks or air from entering the system. This gasket is made from durable materials and is built to withstand the high temperatures and pressures of the engine. It is an essential component in maintaining the proper functioning of the EGR valve, which helps to reduce emissions and improve engine performance. This genuine Mercedes gasket is a reliable and long-lasting replacement part for your vehicle.