Equip your semi to be Ready for the Road Ahead , with the Centric Parts Reman Premium Semi-Loaded Disc Brake Caliper, a key piece to rapidly actuate the disc brakes. Due to its specialized design, this replacement tool houses the brake pads, assisting in the compression of the disc brakes to slow down or stop a vehicle. Constructed with durable materials to withstand strong amounts of torque while enhancing overall brake performance. FleetPride is your First Click in Heavy Duty .