Centric 320.66078F Disc Brake Rotor - Front

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotor 320.66078F is engineered for reliable braking performance on Chevrolet and GMC trucks. Designed specifically for the Chevrolet Colorado and GMC Canyon, this rotor features a full coating to resist corrosion and extend service life.

• Full coating on disc and hat for enhanced rust protection
• Vented rotor design with 47 straight vanes for improved heat dissipation
• Nominal thickness of 1.063 inches (27.0 mm) with discard thickness at 0.984 inches (25.0 mm)
• Overall diameter of 12.205 inches (310 mm) suitable for specified truck models
• Floating disc mounting and smooth surface finish for consistent braking
• 6 lug holes with 0.614 inch (15.6 mm) diameter and 120 mm bolt circle diameter
• Hat diameter of 6.283 inches (159.6 mm) with coated finish for durability

Product Line Details: Centric GCX Elemental Protection Disc Brake Rotors - Full Coating

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating line focuses on providing rotors with a comprehensive protective coating that covers both the braking surface and the rotor hat. This full coating helps prevent rust and corrosion, which is especially beneficial for vehicles exposed to harsh weather or road conditions. The 320.66078F rotor is part of this line, offering vented construction and a floating disc mount to maintain optimal braking performance and rotor longevity on Chevrolet Colorado and GMC Canyon trucks.

Technical Specifications and Features

This disc brake rotor is vented with 47 straight vanes, allowing efficient heat dissipation during braking to reduce the risk of brake fade. The rotor has a nominal thickness of 1.063 inches (27.0 mm) and a discard thickness of 0.984 inches (25.0 mm), ensuring it meets OEM standards for safe replacement intervals. The smooth surface finish supports consistent pad contact, while the floating disc mounting system helps accommodate thermal expansion and contraction.

Compatible Vehicles and Applications

• Chevrolet Colorado (specific model years requiring part number 320.66078F)
• GMC Canyon (specific model years requiring part number 320.66078F)

This rotor is designed to replace factory disc brake rotors on these trucks, restoring braking efficiency and safety.

Common Issues Addressed by This Rotor

• Brake rotor corrosion and rust buildup
• Overheating and brake fade during heavy use
• Uneven rotor wear causing vibration or noise
• Reduced braking performance due to worn or warped rotors
• OEM rotor replacement for maintenance or repair

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness before installation. Clean the hub surface to prevent runout and ensure proper rotor seating. Use proper torque specifications for the 6 lug nuts on the 120 mm bolt circle. Since this rotor does not include bearings or an ABS tone ring, verify compatibility with your vehicle’s existing components. The floating disc mount requires careful alignment during installation to maintain optimal performance.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM specifications, providing reliable braking performance. The full coating protects against corrosion, extending rotor life. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.