Perfect Stop 6620679 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Buick, Cadillac, Chevrolet, and Pontiac

The Perfect Stop Gray Armor-Plate, Premium Disc Brake Rotor (Part Number 6620679) is engineered to meet the braking demands of select Buick, Cadillac, Chevrolet, and Pontiac models. Designed with precision, this vented rotor offers consistent performance and durability for vehicles like the Bonneville, DeVille, Impala, LeSabre, Monte Carlo, and Park Avenue.

Key Features of Perfect Stop Disc Brake Rotor 6620679

• Vented rotor design for improved heat dissipation
• Nominal thickness of 1.181 inches (30.0 mm) with discard thickness at 1.126 inches (28.6 mm)
• Overall height of 2.0 inches (50.8 mm) ensuring proper fitment
• Outside diameter measures 11.929 inches (303.0 mm) for compatibility
• Five mounting bolt holes with a bolt circle diameter of 4.626 inches (117.5 mm)
• Center hole diameter of 2.783 inches (70.7 mm) for accurate alignment
• Smooth surface type for consistent braking contact
• ABS tone ring not included

About the Gray Armor-Plate, Premium Product Line

The Gray Armor-Plate, Premium line from Perfect Stop focuses on delivering rotors with enhanced surface protection and durability. This product line features a specialized coating that helps resist corrosion and wear, extending the rotor's service life. The 6620679 disc brake rotor benefits from this advanced plating, making it suitable for drivers seeking reliable braking components for their Buick, Cadillac, Chevrolet, or Pontiac vehicles.

Detailed Product Description

This disc brake rotor is designed as a vented type, which allows air to flow between the rotor surfaces, reducing heat buildup during braking. Maintaining a nominal thickness of 1.181 inches (30.0 mm) and a discard thickness of 1.126 inches (28.6 mm), it ensures safe and effective braking performance throughout its lifespan. The rotor's smooth surface provides consistent pad contact, minimizing noise and vibration. With an outside diameter of 11.929 inches (303.0 mm) and five mounting bolt holes, it fits securely on compatible models including the Buick LeSabre and Chevrolet Impala.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Upgrading corroded rotors to improve braking consistency
• Resolving noise issues related to uneven rotor surfaces
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Ensuring proper fitment for specific Buick, Cadillac, Chevrolet, and Pontiac models

Installation Notes and Tips

When installing the Perfect Stop 6620679 disc brake rotor, ensure the mounting surface is clean and free of debris to promote proper seating. Verify the rotor thickness before installation to confirm it meets the nominal specifications. Use the correct torque specifications for the five mounting bolts to avoid rotor warping. This rotor does not include an ABS tone ring, so confirm compatibility with your vehicle's ABS system.

Quality Assurance and Warranty

Perfect Stop manufactures the Gray Armor-Plate, Premium rotors to meet or exceed OEM standards. While specific warranty details are not provided, the product line emphasizes durability and corrosion resistance through its advanced plating technology. For optimal performance, always replace rotors in pairs and follow manufacturer guidelines.