Perfect Stop 662181 Disc Brake Rotor - Front

Overview of Perfect Stop Gray Armor-Plate Premium Rotor

The Perfect Stop Gray Armor-Plate, Premium disc brake rotor (part number 662181) is engineered for reliable braking performance on select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed specifically for vehicles like the Buick Skylark and Chevrolet Cavalier, this rotor meets precise specifications to maintain optimal stopping power.

• Vented disc brake rotor for improved heat dissipation
• Nominal thickness of 0.801 inches (20.35 mm) ensuring durability
• Discard thickness at 0.736 inches (18.7 mm) for safe replacement guidelines
• Overall height of 1.89 inches (48.0 mm) for proper fitment
• Outside diameter of 10.197 inches (259.0 mm) matching OEM dimensions
• Five mounting bolt holes with a 100 mm (3.937 inch) bolt circle diameter
• Smooth surface type for consistent brake pad contact
• Center hole diameter of 2.299 inches (58.384 mm) for accurate hub alignment
• ABS tone ring not included

Gray Armor-Plate, Premium Product Line Details

The Gray Armor-Plate, Premium line from Perfect Stop focuses on delivering rotors with enhanced surface protection and structural integrity. This product line features rotors with a smooth surface finish and vented design to reduce heat buildup during braking. The premium coating helps resist corrosion, extending rotor life and maintaining consistent braking performance over time.

Technical Description and Specifications

This vented disc brake rotor is designed to meet the exacting standards required for proper braking on vehicles such as the Pontiac Grand Am and Oldsmobile Cutlass Calais. The rotor’s nominal thickness of 0.801 inches (20.35 mm) ensures it can withstand the rigors of daily driving, while the discard thickness of 0.736 inches (18.7 mm) provides a clear threshold for replacement to maintain safety. The rotor’s overall height of 1.89 inches (48.0 mm) and outside diameter of 10.197 inches (259.0 mm) align with factory specifications, ensuring proper fit and function. The five mounting bolt holes arranged on a 100 mm (3.937 inch) bolt circle diameter allow for secure installation. The smooth surface type promotes even pad wear and consistent braking feel.

Compatible Vehicles and Common Applications

• Buick Achieva, Skylark
• Chevrolet Cavalier, Corsica, Sunfire
• Oldsmobile Cutlass Calais
• Pontiac Grand Am, Sunbird

This rotor is suitable for drivers seeking to maintain or restore braking performance on these specific models.

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface to remove any protective coating before mounting
• Check hub and mounting surfaces for debris or corrosion to ensure proper fit
• Torque mounting bolts to manufacturer specifications to avoid warping
• Inspect brake pads for wear and replace if necessary to optimize braking performance

Quality Assurance and Warranty

Perfect Stop rotors undergo rigorous quality control to meet industry standards for durability and performance. While specific warranty details are not provided, the Gray Armor-Plate, Premium line is designed to offer consistent braking reliability when installed and maintained according to manufacturer guidelines.