The Reinz Valvetronic Actuator Seal - 407676620 is a high-quality seal designed to fit onto the Valvetronic actuator in various BMW models. The Valvetronic actuator is responsible for controlling the variable valve timing in the engine, which helps to improve performance and fuel efficiency. This seal helps to prevent any leaks or damage to the Valvetronic actuator, ensuring smooth and efficient operation. It is made from durable materials and is designed to meet or exceed OEM specifications. This product is a reliable and cost-effective solution for maintaining the proper functioning of the Valvetronic system in your BMW vehicle.