Wilwood Corvette C6 Z06/Grand Sport Front SRP Rotor Conversion (2006–2013), 14-Inch Spec-37 Rings & Aluminum Hats

Drilled/slotted 14-inch rings and black aluminum hats form this Wilwood front ProMatrix package for the specified C6 Corvette iron-brake configuration. The 72-curved-vane Spec-37 rings replace the matching factory discs while retaining the appropriate OE six-piston calipers. It supplies rotor assemblies and fastening hardware, not a complete caliper, pad or hydraulic conversion. 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: 140-12496-D
• Type: Promatrix Front Replacement Rotor Kit
• Rotors: 14.00-inch diameter × 1.25-inch thickness; SRP Drilled & Slotted; Spec-37 Iron; Black Electro Coat surface; 72 curved vanes.
• Wheel bolt circles: 5 x 4.75 inches.
• Package: paired replacement rotor rings, aluminum hats and attachment hardware. Calipers, pads, hydraulic lines and wheel hubs are not included.
• Conditional wheel screening size: 18 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.

Fitment & Compatibility

Match the vehicle's actual Z06 or Grand Sport iron-brake equipment and rotor dimensions to DS899 before ordering. Factory brake options can differ within the same model and year, particularly where carbon-ceramic packages are installed. Verify the hub mounting and wheel envelope, and inspect existing pads for compatibility and condition. Install left/right directional rotors according to the instructions and check assembled runout before road testing.

Match the individual model, year, submodel and brake configuration in the fitment table below.

Wilwood installation documents: Installation instructions.

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