Wilwood Front Red AERO6 Package for Corvette C5/C6, XLR and Ridetech GM Hubs, 15-Inch Drilled Rotors — Selected 1962–2013 Applications

This front kit supplies red six-piston calipers and 15.00-inch drilled-and-slotted rotors for the specified Corvette-type hubs. Separate hydraulic lines must match the actual C5, C6, XLR or converted-spindle installation. Wilwood Engineering has designed and manufactured disc brake systems since Bill Wood founded it in 1977. Its Camarillo, California operation supplies calipers, master cylinders, brake rotors, valves, fittings and lines for specialized, street-performance and motorsport applications. Each component must be chosen to match the complete brake system.

Technical Details

• Manufacturer: Wilwood
• Manufacturer part number: 140-13903-DR
• Kit classification: Front Brake Kits - Street Performance
• Axle position: Front Kits
• Brake Type: Disc
• Selling unit: Sold as a kit.
• 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; 5 x 4.75 in; 5 x 120.65 mm
• Catalog stud / mounting-hole reference: 0.520 in; 13.21 mm
• Rotor surface finish: Black Electro Coat
• Hat material: Aluminum
• Hat finish: Black E-Coat
• Hat offset dimension: 0.290 in
• Master Cylinder Included: No
• Brake Booster Included: No
• Brake Lines Included: No
• Separately specified components: 220-8176; 220-9100
• 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: Red
• Caliper Finish: Red Powder Coat
• Caliper Inlet Port Diameter: 1/8-27 NPT
• Caliper family: AERO6
• Pad compound: BP-20

Fitment & Compatibility

C5/C6 Corvette and Cadillac XLR entries require the listed hub and brake configuration. The many classic GM applications require a Ridetech hub spindle, so an original-spindle car is not covered by its model/year alone. Hoses are separate: DS-1079 identifies 220-8176 for C5 and 220-9100 for C6, with other converted installations checked individually. Match the wheel template and correct hub registration.

Listed models: Chevy II; Corvette; Skylark; Special; Sportwagon; Chevelle; El Camino; 442; Cutlass; F85; Vista Cruiser; Beaumont; GTO; LeMans; Tempest; Gran Sport; Camaro; Cutlass Supreme; Firebird; GS 350; GS 400; Nova; GS; GS 455; Sprint; Ventura; Apollo; Omega; XLR. Use the fitment table below for the individual years, submodels and equipment conditions.

Wilwood product specifications · Installation instructions

Ask PMB Performance for help comparing the installation requirements. We have more than 20 years of experience working with brake parts and fitment.