Bosch Wheel Speed Sensors provide vital information, critical for the proper function of ABS (Anti-lock Braking Systems), TCS (Traction Control System), ESP (Electronic Stabilization Program) and Navigation systems found on the majority of modern vehicles. Not only did Bosch invent the Electronic Stabilization Program (ESP) – the technology that improves a vehicle's stability – but it also was the first company to fit Anti-locking Braking Systems (ABS) into mass production. Bosch Wheel Speed Sensors feature OE or better quality, performance, and function to ensure your vehicle performs with optimum levels of safety. Bosch Wheel Speed Sensors report a vehicle's exact speed, forward and backward movement, and wheel stoppage to ABS, Traction Control, and Stability systems. Bosch Wheel Speed Sensors feature an interference resistant design that provides protection against external magnetic influences that could alter sensing abilities. Sold individually.