Product Details: Ensure your semi is Ready for the Road Ahead™ with up-to-date metrics on the quality of your air brakes, with the Bendix Air Disc Brake Rotor and Brake Pad Wear Indicator Kit. Thanks to its advanced wear indicator, this replacement component is able to display the up-to-date quality of the air brakes, and alert operators when brakes need to be checked or replaced. Crafted with advanced diagnostics to relay information about potentially lost pressure or valve bleeding. FleetPride is your First Click in Heavy Duty®.