Wilwood Drilled 14-Inch Front Brake Package, Mazda MX-5 Miata (2006–2015), Black Six-Piston Calipers

This black-caliper Wilwood package uses drilled/slotted 14-inch front rotors for the listed Mazda MX-5 Miata fitments. The six-piston Superlite calipers and separate-hat Spec-37 rings form a matched conversion on the compatible factory hubs. Front hoses are included according to the kit's installation parts list; the original vehicle mounting arrangement and proposed wheel design still determine whether installation is suitable. 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: 140-12911-D
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat).
• Calipers: Forged Narrow Superlite 6R; 6-piston; Black Powder Coat.
• Piston bore dimensions: 1.38, 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 14.00-inch outside diameter × 1.10-inch width; SRP Drilled & Slotted; Spec-37 Iron; Black Electro Coat surface finish.
• Rotor ventilation: 72 curved vanes.
• Rotor hats: Big Brake Hat - Flared Bell; Aluminum; Black E-Coat.
• Wheel bolt circles: 5 x 4.53 inches.
• Included: paired calipers, pads, rotors and mounting hardware, caliper mounting brackets, rotor hats.
• Application-specific hydraulic flex lines included.
• Conditional wheel minimum: 18 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.

Fitment & Compatibility

Identify the exact MX-5 Miata year and trim before checking the hub register and mounting bosses. Follow the instructions for hat-to-rotor assembly and caliper shimming. Large-diameter rims still require a complete spoke and barrel comparison with the clearance diagram. Inspect line fittings and ensure unrestricted movement at steering lock. After confirming the rear brake and master-cylinder combination, verify rotor freedom, pedal travel and system balance under the manufacturer's installation procedure.

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.