Wilwood Front AERO6 14-Inch Kit for S550 Mustang (2015–2023) and Listed Ridetech Hub Spindles, Black Calipers

This 14-inch AERO6 front conversion supplies black six-piston calipers and braided flexlines. Factory S550 Mustang hubs and the separately listed Ridetech spindle applications must each be matched to their own fitment conditions. Founded by Bill Wood in 1977, Wilwood Engineering designs and manufactures disc brake systems from Camarillo, California. Its calipers, brake rotors, master cylinders, valves, fittings and brake lines serve motorsport, street-performance and specialized applications. Individual components must be selected for the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13886
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• Rotor Outside Diameter: 14.00 in; 355.6 mm
• Rotor Thickness: 1.25 in; 31.75 mm
• Rotor Material: Spec-37 Iron
• Surface Type: GT 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
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: Yes
• Minimum wheel guidance (clearance drawing required): 18 in; 457.2 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-20

Fitment & Compatibility

For factory S550 installations, use only the listed 2015–2023 Mustang trim and brake-package entries; do not assume Shelby GT350/GT500 coverage. Classic Falcon, Comet, F-100 and Mustang rows require the stated Ridetech hub spindle or SLA/hub-spindle conversion, not their original spindles. DS-1076 includes front flexlines 220-13912. The wheel barrel and spoke shape must clear the 14-inch assembly.

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

For fitment assistance backed by more than 20 years of experience, share the installed brake configuration with PMB Performance before ordering.