The Genuine BMW ABS Wheel Speed Sensor - 34521166126 is a high-quality and reliable sensor designed specifically for BMW vehicles. It is responsible for monitoring the speed of each wheel and sending this information to the ABS (anti-lock braking system) to help prevent wheel lock-up and maintain control during braking. This sensor is an essential component for ensuring safe and efficient braking performance. It is made with durable materials and meets all BMW specifications for fit and function. This sensor is a genuine OEM (original equipment manufacturer) part, ensuring the highest level of quality and compatibility with your BMW vehicle.