Get your semi Ready for the Road Ahead™ with smooth front and rear brake performance, with the OTR 299.8mm x 68.4mm Brake Rotor. Alongside the brake pads and caliper, this replacement rotor works to create a compression mechanism that slows a vehicle once the brake pedal is engaged. Manufactured with precision standards to remove flaws and provide long-term reliability. OTR understands what it takes to repair and maintain Class 6-8 trucks, so they deliver solutions, making your job easier and more efficient. OTR warranties are comparable to or better than OE and top brands. All heavy duty truck parts offer the same form, function, and fit as the OE replacement parts. FleetPride is your First Click in Heavy Duty®.