Wilwood Red Rear Four-Piston Brake Conversion, FR-S/BRZ/86/GR86 (2013–2024), Drilled 12.88-Inch Rotors

Red Superlite 4R calipers distinguish this drilled/slotted Wilwood rear kit for the individually listed FR-S, BRZ, 86 and GR86 applications. Its 12.88-inch rotor rings attach to aluminum hats designed around the compatible original parking brake. The package supplies the hydraulic calipers, pads, rear hoses and mounting components rather than replacing worn original parking cables or shoes. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12871-DR
• Type: Forged Narrow Superlite 4R Big Brake Rear Brake Kit For OE Parking Brake.
• Calipers: Forged Narrow Superlite 4R; 4-piston; Red Powder Coat.
• Piston bore dimensions: 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 12.88-inch outside diameter × 0.81-inch width; SRP Drilled & Slotted; Iron; Black Electro Coat surface finish.
• Rotor ventilation: 48 curved vanes.
• Rotor hats: Parking Brake Hat - Standard; Iron; Black E-Coat.
• Wheel bolt circles: 5 x 3.93; 5 x 4.50 inches.
• Included: paired calipers, pads, rotors and mounting hardware, caliper mounting brackets, rotor hats.
• Application-specific hydraulic flex lines included.
• Conditional wheel minimum: 17 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.

Fitment & Compatibility

Identify the vehicle's production year and brake configuration before ordering. Inspect the retained parking system and verify that the rotor hats register properly on the original hubs. Install the brackets and center the calipers using the prescribed shim arrangement. A nominal 17-inch wheel remains subject to the complete clearance diagram. Check for parking-brake drag, secure the hydraulic lines away from moving parts and confirm brake balance with the front conversion or original front brakes.

Match the individual year, model, submodel and equipment conditions in the fitment table below.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for help confirming the complete setup.

Manufacturer warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.