Wilwood Front Brake Kit: Ford Mustang Five-Lug Spindles (1994–2004) with 12.88-Inch Drilled/Slotted Rotors and Red Superlite 6R Calipers

Red six-piston calipers distinguish this 12.88-inch Mustang SRP conversion. Its Spec-37 iron rotors fit the supplied hats over the retained hubs, with Wilwood-compatible hydraulic lines selected separately. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines as part of its disc brake systems and component range for motorsport, street-performance and specialized applications. Each component must suit the requirements of the complete brake installation.

Technical Details

• Manufacturer part number: 140-9107-DR
• Included pad compound: BP-10; pistons: stainless steel
• 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; SRP Drilled & Slotted; vented

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.

The table below gives the detailed vehicle coverage; match the individual entry and each referenced note.

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.

For fitment help, contact PMB Performance with your VIN and details of any axle, spindle or brake changes. Our team has over 20 years of experience checking parts and fitment, including the dimensions that a model-year search cannot establish.

Vehicle Applications

Application Notes

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