Wilwood Front Slotted-Rotor GTO Brake Package, Red Six-Piston Calipers & Hoses, 13.06 Inches (2004–2006)

Red powder coat marks the six-piston calipers in this GT-slotted GTO front package. The 13.06-inch Spec-37 iron rotors and included flexlines are selected as part of the documented conversion, with wheel clearance checked before disassembly. Founded in 1977 by Bill Wood and based in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components for motorsport, street-performance and specialized applications. Its range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines, selected to work together within a properly matched brake system.

Technical Details

• Manufacturer part number: 140-8753-R
• Caliper body: Forged aluminum; hydraulic inlet: 1/8-27 NPT
• Rotor surface finish: Black Electro Coat; rotors are not supplied burnished
• Rotor/hat wheel-stud clearance pattern(s): 5 x 4.72 in; 5 x 119.89 mm; the existing hub/axle pattern is retained
• Hat/rotor stud-hole clearance: 0.500 in; 12.70 mm; this is not a wheel-stud thread designation
• Hydraulic hoses: included; DOT-approved 20-inch flexline kit 220-14177
• Kit includes calipers, rotors and mounting hardware; replacement hubs and spindles are not included
• Not included: master cylinder and brake booster
• Wheel clearance: 17-inch wheels may fit; check the complete manufacturer caliper/rotor template
• Quantity: sold as one axle kit
• Service calipers: 6-piston Forged Narrow Superlite 6R; Red Powder Coat; radial mounting
• Brake rotors: 13.06 x 1.25 inches; Spec-37 Iron; GT Slotted; vented
• Included pad compound: BP-10; pistons: stainless steel

Fitment & Compatibility

For 2004–2006 Pontiac GTO front hubs and factory disc spindles. The original hubs remain in service. The included six-piston calipers and separate rotor hats form a front conversion package, with application-specific hydraulic hoses included.

DS493 distinguishes the 2004 bracket/shim arrangement from later cars. Follow the year-specific mounting sequence and check the 17-inch-wheel template. Included 20-inch DOT flexlines are kit 220-14177; verify routing through steering and suspension travel.

Review the complete fitment table below before purchase, retaining the restrictions attached to the chosen vehicle.

Manufacturer Resources

• Wilwood kit specifications and wheel-clearance information
• Installation instructions and component list

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.

PMB Performance brings over 20 years of experience with brake components and fitment details. Send us your VIN together with the installed axle, spindle, brake and wheel specifications if you need help confirming this package.

Vehicle Applications

Application Notes

1. Line kit included (manufacturer): 220-14177 (20.00 in)
2. Front line-kit reference: 220-14177