Wilwood Front SX6R Kit with Black Calipers and Dynamic 14-Inch GT Rotors, Ford Mustang (2015–2023) and Listed Ridetech Falcon/Comet/Mustang/F-100 Hub Spindles

The 14-inch SX6R package combines black six-piston calipers with GT-slotted Spec-37 rotor rings. Dynamic lug-drive aluminum hats mount the brakes on the specified retained hubs, with the documented front line kit included. Bill Wood founded Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc braking systems and components for street-performance, motorsport and specialized use. Its calipers, rotors, master cylinders, valves, fittings and brake lines are chosen around the hydraulic, mounting and balance needs of a complete system.

Technical Details

• Manufacturer part number — 140-14928.
• Rotor dimensions — outside diameter 14.00 in; 355.6 mm; thickness 1.25 in; 31.75 mm.
• Service caliper assembly — SX6R; 6 pistons in each caliper; Stainless pistons; Forged Aluminium body; Radial mounting.
• Supplied pad compound — PM - ProMatrix.
• Hat wheel-stud clearance diameter — 0.630 in; 16.00 mm.
• Rotor mounting hat — aluminum; Type III Anodize; hat offset 1.370 in; dynamic lug drive.
• Hydraulic package contents — brake lines included: Yes; master cylinder included: No; booster included: No.
• Brake function and supply — Front Brake Kits - Street Performance; Disc braking; front axle; Sold as a kit.
• Rotor construction and friction surface — Spec-37 Iron; Vented; GT Slotted; surface finish: Black Electro Coat.
• Caliper color, finish and hydraulic inlet — Black; Black Powder Coat; inlet 1/8-27 NPT.
• Wheel bolt circle — 5 x 4.5 in; 5 x 114.3 mm.
• Nominal minimum wheel diameter — 18 in; 457.2 mm; verify full spoke and barrel clearance using the kit drawing.
• Mechanical package contents — no separate hubs included; mounting hardware included: Yes; spindles included: No.
• Flexline specification — Line kit included (manufacturer): 220-13912 (14.00 in); Front line-kit reference: 220-13912.

Fitment & Compatibility

Identify whether the car uses the listed 2015–2023 Mustang factory hardware or the specified Ridetech hub spindle. Falcon, Comet, F-100 and older Mustang fitment depends on that aftermarket suspension condition. Check DS1271 and verify the Mustang-pattern hose connection on each custom chassis.

Listed model families are Falcon, Comet, Mustang, F-100; the individual year and brake/spindle conditions remain decisive. 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 brings over 20 years of parts and fitment experience. Send the vehicle details and installed brake/suspension configuration if you need help checking this package.

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.