This DELPHI wheel speed sensor, part code SS21139-12B1, is designed to provide precise rotational speed information for each wheel. Essential for the proper functioning of Anti-lock Braking Systems (ABS), Electronic Stability Control (ESC), and traction control systems, this sensor helps maintain vehicle stability and safety during braking and acceleration. Engineered for a direct fit, it ensures seamless integration with your vehicle's existing wiring and braking components. Rely on DELPHI for durable and accurate sensor technology.