Centric 320.66062F Disc Brake Rotor - Rear

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating provide reliable braking performance for select GM vehicles. Designed with a fully coated disc and hat finish, these rotors offer enhanced corrosion resistance and durability for Buick Montana, Chevrolet Uplander, Pontiac Relay, and Saturn Terraza models.

• Part Number: 320.66062F
• Fully coated disc and hat finish for corrosion protection
• Solid rotor design with smooth surface type
• Outside diameter: 11.815 inches (300.1 mm)
• Nominal thickness: 0.472 inches (12.0 mm)
• Discard thickness: 0.413 inches (10.5 mm)
• Overall height: 1.453 inches (36.9 mm)
• Floating disc mounting with 6 lug holes (0.563 inch diameter)
• Center hole diameter: 2.783 inches (70.7 mm)
• Mounting bolt hole circle diameter: 4.5 inches (114.3 mm)
• Weight: 12.6 lbs (5.73 kgs)
• ABS tone ring not included

Product Line Details

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating line focuses on providing rotors with a complete protective coating to resist rust and corrosion. This full coating extends the rotor's service life and maintains consistent braking performance, especially in environments prone to moisture and road salt. The 320.66062F rotor is part of this line, offering a solid rotor design optimized for specific GM minivan and crossover models.

Technical Description and Specifications

This rotor features a solid disc construction with a smooth braking surface to ensure even pad contact and consistent stopping power. The fully coated disc and hat finish protect against corrosion, which helps maintain rotor integrity over time. The rotor measures 11.815 inches in outside diameter and has a nominal thickness of 0.472 inches, with a discard thickness of 0.413 inches, indicating when replacement is necessary. The overall height is 1.453 inches, and it mounts using a floating disc mounting system with six lug holes sized at 0.563 inches diameter. The center hole diameter is 2.783 inches, and the mounting bolt hole circle diameter is 4.5 inches, matching factory specifications for compatible vehicles.

Compatible Vehicles and Applications

• Buick Montana
• Chevrolet Uplander
• Pontiac Relay
• Saturn Terraza

This rotor is designed specifically for these GM models, ensuring proper fitment and reliable braking performance. It is ideal for replacing worn or damaged rotors to restore braking efficiency and safety.

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 0.413 inches
• Ensure the rotor surface is clean and free of debris before mounting
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with existing brake pads and hardware
• ABS tone ring is not included; confirm ABS system requirements before installation

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The full coating process enhances corrosion resistance, contributing to longer rotor life. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric's official documentation for complete warranty information.