Compatibility:for Chevrolet Silverado 2500 HD 2011-2019for Chevrolet Silverado 3500 HD 2011-2019for GMC Sierra 2500 HD 2011-2019for GMC Sierra 3500 HD 2011-2019OE Number:20872161Functionality:Placement on Vehicle:Front Left/Front RightMaterial:Plastic,MetalPackage Content:1 Pcs ABS Wheel Speed SensorAdvantage:ABS wheel speed sensor plays an important role in monitoring your wheels' speed and sending signals to the ABS controller.Our reinforced wheel speed sensor will keep your car from skidding or sliding when you brake suddenly.You will get accurate and rapid signal measurement of wheel speeds to optimal braking performance.Made of quality abs plastic and metal materials to withstand the harsh road conditions.Installation Steps:Easy Installation.