The Bosch ABS Wheel Speed Sensor - 0986594511 is a component of a vehicle's anti-lock braking system (ABS). It is responsible for monitoring the speed of each wheel and sending this information to the ABS control module. This allows the system to detect when a wheel is about to lock up and adjust the braking pressure accordingly, helping to prevent skidding and loss of control. The sensor is designed to be durable and reliable, providing accurate readings even under harsh driving conditions. It is an essential part of a vehicle's safety system and is compatible with a wide range of makes and models.