Ensure your semi is Ready for the Road Ahead™ with smooth front and rear brake performance, with the Meritor 1.32" Hat-Type Hydraulic Brake Rotor. Thanks to its partnership with the brake pads and caliper, this replacement rotor is able to create a compression mechanism that slows a vehicle once the brake pedal is activated. Fashioned with precision standards to remove imperfections and provide long-term reliability. FleetPride is your First Click in Heavy Duty®.