Wilwood Front Superlite 4R Road-Race Brake Kit for Ford Mustang (2005–2014), 12.19-Inch GT Rotors

This Wilwood front road-race package combines four-piston Superlite 4R calipers with Thermlock insulated pistons and 12.19-inch GT slotted rotors for the listed Mustang applications. The 1.25-inch-thick Spec-37 rings and BP-35 pads are selected for high-temperature competition use. Included flex lines complete the specified caliper connections, while the original matching hub and disc-spindle arrangement remain. 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: 140-12508
• Type: Forged Superlite 4R Big Brake Front Brake Kit (Race)
• Calipers: Forged Superlite 4R; 4 pistons per caliper; Type III Anodize.
• Caliper bore sizes: 1.88, 1.62 inches. Piston type: Thermlock.
• Included pad compound: BP-35.
• Rotors: 12.19-inch diameter × 1.25-inch thickness; GT Slotted; Spec-37 Iron; Plain surface; 48 curved vanes.
• Wheel bolt circles: 5 x 4.50 inches.
• Included: paired calipers, pads, rotors, mounting brackets and assembly hardware, rotor hats.
• Hydraulic flex lines and connection hardware included for the specified application.
• Conditional wheel screening size: 15 inches. Use the installation clearance diagram to verify the actual barrel and spoke profile.
• Use restriction: Road Race kits contain high temperature racing pads. Extended low temperature use will cause premature rotor and pad wear.

Fitment & Compatibility

Read the exact Mustang brake-package entry and compare the mounting with DS901. BP-35 racing pads need suitable operating temperature; extended low-temperature use causes premature rotor and pad wear. Some 15-inch wheels may clear, but the actual barrel and spoke profile must be checked with the diagram. Review the installation's spindle/bracket requirements and front/rear hydraulic balance before using this competition-oriented combination.

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.

California Proposition 65 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.