Shop for Aftermarket Disc Brake Parts for the Kenworth T300-T450 Truck Model. Installing high-quality disc brake parts can keep your Kenworth's brake system operating with power and precision for years to come. This product lineup has everything you might need, from severe-duty pads and heavy-duty rotors to ADB22X calipers. You can also find camshaft bushings, brake lining bolts, and air brake diaphragms to ensure smoother, more reliable braking. These parts are a perfect choice when considering a replacement part or an upgrade.