This DELPHI Wheel Speed Sensor, part number SS21641-12B1, is designed to provide precise rotational speed information for your vehicle's wheels. Accurate wheel speed data is crucial for the optimal performance of Anti-lock Braking Systems (ABS), Electronic Stability Control (ESC), and traction control systems. It also ensures the speedometer and odometer function correctly. Engineered to meet or exceed OE specifications, this sensor offers a reliable and direct fit replacement for your original equipment. Installation is straightforward, restoring proper system functionality and safety.