Caliper MC4 L/H Black .810 Rotor

The Wilwood Caliper MC4 L/H Black .810 Rotor is a left-hand mechanical brake caliper engineered for high-performance hydraulic brake systems. This aluminum caliper is black anodized for corrosion resistance and compatibility with 12.88-inch outer diameter rotors measuring 0.810 inches thick. The MC4 platform represents Wilwood's mid-range caliper offering, designed for applications requiring precise braking modulation without electronic complexity.

The 2.950-inch floating mount allows the caliper to maintain consistent pad-to-rotor contact as thermal expansion occurs during heavy braking cycles. Aluminum construction keeps weight minimal while the mechanical actuation system delivers immediate response without lag. At 3.7 pounds, this caliper integrates into brake systems requiring reliable stopping power with straightforward maintenance. The 0.810-inch rotor thickness provides adequate thermal mass for sustained deceleration in demanding driving conditions.

Left-hand calipers position the piston on the trailing side of the rotor, commonly specified for vehicles with specific brake system layouts or custom builds where symmetrical dual-caliper configurations are required. The MC4 is popular in street performance builds, vintage vehicle restorations, and applications where OEM brake upgrades fall short. Builders selecting this caliper typically pair it with matched rotors and premium fluid to maximize thermal stability and stopping precision.

Wilwood calipers are recognized for consistent manufacturing and straightforward installation across a wide range of vehicles. The MC4 left-hand configuration ensures fitment on the correct wheel when integrated into complete brake system upgrades. Verify rotor size, mounting surface specifications, and brake line compatibility with your vehicle's existing hardware before installation.