Wilwood MC4 Mechanical Parking Brake Calipers are a multi-use, cable operated brake caliper that combines high output performance with simplicity in design and construction. It is the perfect solution for vehicle applications requiring a separate mechanically actuated parking brake caliper. The MC4 Caliper combines an efficient die cast body with a forged billet anvil for superior strength under load, yet is lightweight at only 3.30 (2.95 without pads) pounds. They are built to accept rotors that are .810" thick, with 11.00" - 12.88" diameter range. Each caliper includes Composite Metallic high-friction, high static-hold brake pads, and are pre-fitted with noise cancelling shields.