This DELPHI Wheel Speed Sensor, part code SS21339-12B1, is designed to provide precise rotational speed information for each wheel. Accurate sensor data is crucial for the proper functioning of Anti-lock Braking Systems (ABS), Traction Control Systems (TCS), and Electronic Stability Control (ESC). Replacing a faulty sensor restores these vital safety systems, improving vehicle handling and safety. Manufactured by DELPHI, a trusted name in automotive components, this sensor meets high-quality standards for durability and reliability.