Wilwood Front SX6R Brake Kit, Black Calipers and Dynamic 15-Inch GT Rotors, Ford Mustang (2015–2023) and Listed Ridetech Ford Falcon/Mustang/F-100 or Mercury Comet Conversions

This black SX6R front kit uses 15-inch GT rotor rings on dynamic lug-drive aluminum hats. It serves the specified 2015–2023 Mustang configuration and the separately documented Ridetech hub-spindle conversions, with six-piston calipers and a front hose set supplied. Wilwood Engineering is based in Camarillo, California; Bill Wood founded the company in 1977. Disc brake system design and manufacturing includes calipers, rotors, master cylinders, pressure valves, fittings and brake lines for motorsport, street-performance and specialized applications. Component selection must account for how the complete brake system mounts, operates and balances.

Technical Details

• Manufacturer part number — 140-14925.
• Brake function and supply — Front Brake Kits - Street Performance; Disc braking; front axle; Sold as a kit.
• Flexline specification — Line kit included (manufacturer): 220-13912 (14.00 in); Front line-kit reference: 220-13912.
• Hydraulic package contents — brake lines included: Yes; master cylinder included: No; booster included: No.
• Mechanical package contents — no separate hubs included; mounting hardware included: Yes; spindles included: No.
• Rotor mounting hat — aluminum; Type III Anodize; hat offset 1.370 in; dynamic lug drive.
• Nominal minimum wheel diameter — 19 in; 482.6 mm; verify full spoke and barrel clearance using the kit drawing.
• Hat wheel-stud clearance diameter — 0.630 in; 16.00 mm.
• Wheel bolt circle — 5 x 4.5 in; 5 x 114.3 mm.
• Supplied pad compound — PM - ProMatrix.
• Caliper color, finish and hydraulic inlet — Black; Black Powder Coat; inlet 1/8-27 NPT.
• Service caliper assembly — SX6R; 6 pistons in each caliper; Stainless pistons; Forged Aluminium body; Radial mounting.
• Rotor construction and friction surface — Spec-37 Iron; Vented; GT Slotted; surface finish: Black Electro Coat.
• Rotor dimensions — outside diameter 15.00 in; 381 mm; thickness 1.25 in; 31.75 mm.

Fitment & Compatibility

Match each application separately: modern Mustang factory hubs and listed vintage Falcon/Comet/F-100 or Mustang Ridetech conversions use different suspension conditions. The supplied 220-13912 hoses are the Mustang-pattern set; verify chassis connections and routing on custom installations. A vehicle model name alone does not establish the hub-spindle interface.

The application list names Falcon, Comet, Mustang, F-100. Verify the particular year and suspension/brake option for each model. Use the fitment table below to confirm year, model, trim and brake or suspension options.

Choose any alternative flexline for the actual route and chassis fittings, with enough travel and the correct flare connections.

PMB Performance has over 20 years of experience with parts and fitment details. Contact us with the original vehicle specification and any changes to its braking or suspension system.

Check the Installation instructions for the full assembly and wheel-clearance requirements.

Manufacturer Warning

Applicable to 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.