Wilwood Front Red Superlite Kit with 12.88-Inch GT Rotors for Mustang Stock-Offset Five-Lug Spindles (1994–2004)

This red-caliper front package uses GT-slotted rotors for the documented five-lug Mustang spindle arrangement. The rotor diameter is 12.88 inches, making the specific DS513 wheel profile the relevant clearance check rather than wheel diameter alone. Wilwood Engineering’s disc brake systems and components serve motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977; it is based in Camarillo, California. Wilwood designs and manufactures brake rotors and calipers as well as master cylinders, valves, brake lines and fittings. Selecting compatible components is essential to the complete system.

Technical Details

• Manufacturer part number: 140-9107-R
• Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
• Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
• Rotor/hat wheel-stud clearance pattern(s): 5 x 4.5 in; 5 x 114.3 mm; the existing hub/axle pattern is retained
• Hat/rotor stud-hole clearance: 0.580 in; 14.73 mm; this is not a wheel-stud thread designation
• Hydraulic hoses: not included; match the separate lines and fittings to the application
• Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
• Not included: master cylinder and brake booster
• Wheel clearance: 17-inch wheels may fit; check the complete manufacturer caliper/rotor template
• Quantity: sold as one axle kit
• Service calipers: 6-piston Forged Narrow Superlite 6R; Red Powder Coat; radial mounting
• Brake rotors: 12.88 x 1.25 inches; Spec-37 Iron; GT Slotted; vented
• Included pad compound: BP-10; pistons: stainless steel

Fitment & Compatibility

For the listed 1994–2004 Ford Mustang five-lug, stock-offset front spindles. Base and GT coverage is supplemented by specific Cobra, Bullitt and Mach I entries. Observe the independent-rear-suspension exclusions attached to particular 1999–2001 applications in the table; a trim name alone does not override those restrictions.

Retain the factory hubs and confirm the 12.88-inch package against DS513. Wilwood-compatible front flexlines 220-6458 are sold separately. Verify the wheel template, mounting-bolt engagement and the resulting brake balance after assembly.

Review the complete fitment table below before purchase, retaining the restrictions attached to the chosen vehicle.

Manufacturer Resources

• Wilwood kit specifications and wheel-clearance information
• Installation instructions and component list

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.

With over 20 years of parts and fitment experience, PMB Performance can help review the intended brake installation. Provide your VIN, wheel measurements and any modified axle or spindle details when asking about compatibility.

Vehicle Applications

Application Notes

1. Line kit included (manufacturer): None
2. Front line-kit reference: 220-6458