Wilwood Front 15-Inch Drilled AERO6 Brake Package in Black, Mustang S550 (2015–2023) and Ridetech Hub Applications

This black AERO6 kit uses drilled-and-slotted rotor faces on a 15-inch front assembly. Its radial brackets and two-piece rotor mounts require the exact Mustang hub or specified Ridetech spindle installation. Wilwood Engineering’s work covers the design and manufacture of disc brake systems for motorsport, street-performance and specialized applications. Bill Wood founded the company in 1977 in a business now based in Camarillo, California. Its calipers, master cylinders, brake rotors, brake lines, valves and fittings must be selected around the complete system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13887-D
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Minimum wheel guidance (clearance drawing required): 19 in; 482.6 mm
• Spindle Included: No
• Mounting Hardware Included: Yes
• Separate wheel hubs included: No
• Pistons per service caliper: 6
• Service-caliper piston construction: Stainless
• Service-caliper mount: Radial
• Caliper body construction: Forged aluminum
• Caliper Color: Black
• Caliper Finish: Black Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: AERO6
• Pad compound: BP-10
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes
• Rotor Outside Diameter: 15.00 in; 381 mm
• Rotor Thickness: 1.25 in; 31.75 mm
• Rotor Material: Spec-37 Iron
• Surface Type: SRP Drilled & Slotted
• Rotor construction: Vented
• Bolt Circle Diameter: 5 x 4.5 in; 5 x 114.3 mm
• Catalog stud / mounting-hole reference: 0.630 in; 16.00 mm
• Rotor surface finish: Black Electro Coat
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset dimension: 1.380 in

Fitment & Compatibility

The 15-inch kit uses the listed S550 Mustang hub, or the explicitly identified Ridetech hub-spindle conversion on older Ford/Mercury vehicles. Match the exact trim and spindle entry; GT350/GT500 fitment is not established by the Mustang name. Front hose kit 220-13912 is included. Check the 19-inch wheel guidance against the supplied clearance drawing before choosing wheels.

Listed models: Falcon; Comet; Mustang; F-100. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

PMB Performance brings over 20 years of experience to brake-component selection. Provide the actual hardware specification when the brake system has been modified.