The Centric Parts Semi-Loaded Brake Caliper is the perfect choice for your brake system. This caliper is precision machined and assembled with all new components, ensuring optimal performance and reliability. It is pressure tested for optimal performance and inspected to ensure proper operation and fitment. The gray finish provides superior corrosion resistance, making it a great choice for any vehicle. The bleeder thread diameter is 7/16"-24 and the bore size is 63.5 millimeters. FleetPride is your First Click in Heavy Duty®.