This DELPHI Wheel Speed Sensor, part code SS21279-12B1, is engineered to provide precise rotational speed information for your vehicle's anti-lock braking system (ABS) and traction control. A faulty speed sensor can lead to illuminated warning lights and compromised safety features. This sensor is designed for a direct fit, ensuring easy installation and reliable performance. Maintain the integrity of your braking and stability systems with this high-quality component.