Wilwood Type III Anodized Powerlite 2R 2-Piston Right Thermlock Caliper, 0.50-Inch Rotor Width

For a brake system using a 0.50-inch-wide rotor, this Type III anodized Wilwood Powerlite 2R provides 2 pistons with 1.75-inch bores. Right-hand mounting is specified. The caliper attaches on 5.08-inch radial centers. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.

Technical Details

• Manufacturer part number: 120-13863
• Mounting: Right hand; Radial; 5.08-inch centers; 0.40-inch mounting holes
• Mount height: 1.52 inches
• Rotor width: 0.50-inch nominal; 0.24–0.50-inch permitted range
• Rotor diameter range: 9.75–11.00 inches
• Pad shape: Wilwood type 7912; compound selected separately
• Piston arrangement: 2 pistons; 1.75-inch bores; Thermlock
• Hydraulic piston area: 2.40 square inches, as specified by Wilwood
• Body and finish: Forged aluminum; Type III anodized
• Fluid inlet: M10 x 1.00
• Dust boots: No
• Component: Wilwood Powerlite 2R; one caliper

The two-piston Powerlite 2R is intended for compact competition brake packages, including formula and open-wheel layouts. Thermlock pistons and top-loading type 7912 pads are paired with a 5.08-inch radial mounting pattern.

Fitment & Compatibility

Check pad depth against the rotor’s usable friction annulus. Rotor-hat clearance, mounting offset and the wheel’s inner profile must also be checked with the caliper drawing.

This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.

PMB Performance has worked with parts and brake fitment for over 20 years. Supply the installed caliper identity and the rotor and bracket measurements for a practical compatibility check.