1Strong Compatibility: Brake wheel speed sensor is replacement for Polaris Indian Chief Dark Horse Front, which is made according to the prototype of the car. 2OE Number: Abs wheel speed sensor replace part number is 4013251. Please make sure the OE number matches the part you are replacing. 3Improve Security: The sensor can monitor the speed of the wheel in real time, so as to adjust the brake pressure in time, prevent the wheel from locking and improve the braking effect. 4Quick Response: Wheel speed sensor has high frequency response and fast signal processing capability, which can get the change of wheel speed in real time and quickly feed back to the brake control system. 5High Performance: Sensor adopts standardized interfaces and protocols, seamlessly connecting with the vehicle's electronic control unit (Ecu), easy to use and configure.