Perfect Stop 662181 Disc Brake Rotor - Front

Premium Front Brake Rotor for OE Fit

Perfect Stop 662181 is a premium front disc brake rotor built for OE fit, form, and function. It is engineered for vehicles such as the Chevrolet Cavalier, Pontiac Sunfire, Buick Skylark, and Pontiac Grand Am, with a vented design that supports consistent braking performance.

The Gray Armor-Plate Premium line focuses on corrosion resistance and stable braking feel. For drivers replacing a worn front rotor on a Chevrolet Cavalier or Pontiac Sunfire, this rotor combines precision dimensions with a surface finish that supports pad seating and break-in.

Key Features

• Part number 662181 premium front disc brake rotor
• Vented rotor design for improved brake cooling and reduced fade
• Armor-Plate anti-corrosion coating on non-friction surfaces for a cleaner appearance behind open wheels
• Cross-Cut surface finish to support pad seating and initial break-in
• Precision engineered for reduced vibration and consistent stopping response
• Built in ISO certified facilities and made to meet SAE J431 grey iron casting requirements
• Outside diameter: 259.0 mm; overall height: 48.0 mm
• Nominal thickness: 20.35 mm; discard thickness: 18.7 mm
• 5-bolt mounting pattern with 100.0 mm bolt circle and 58.384 mm center hole diameter

Product Details

Perfect Stop Gray Armor-Plate, Premium rotors are made for direct replacement service on front brake applications. The vented internal vane design helps move heat away from the braking surface, while the coated non-friction areas help resist rust on exposed wheel setups. The smooth braking surface and cross-cut finish support even pad contact, which is important when servicing older platforms such as the Oldsmobile Achieva, Pontiac Sunbird, and Chevrolet Corsica. Part number 662181 is also cross-referenced with Monroe Shocks & Struts 5580 for the same application.

What This Rotor Helps Address

• Brake pulsation caused by rotor wear or uneven friction surfaces
• Reduced braking consistency from heat buildup during repeated stops
• Rust on exposed rotor hats and non-friction surfaces
• Poor pad seating after a front brake service
• Noise or vibration related to worn or out-of-spec front rotors

Installation Notes and Fitment

Compatible With front brake service on these applications: Fits 1992-2005 Chevrolet Cavalier, Front; Fits 1995-2005 Pontiac Sunfire, Front; Fits 1990-1998 Buick Skylark, Front; Fits 1992-1998 Oldsmobile Achieva, Front; Fits 1990-1998 Pontiac Grand Am, Front; Fits 1992-1996 Chevrolet Corsica, Front; Fits 1992-1994 Pontiac Sunbird, Front; Fits 1991 Oldsmobile Cutlass Calais, Front. Verify rotor dimensions, hub fit, and brake pad condition before installation. Proper cleaning of the hub mounting surface helps reduce runout and vibration concerns during service.

Quality Assurance

Perfect Stop Premium rotors are manufactured in ISO certified facilities and built to meet SAE J431 standards for automotive grey iron castings. The Gray Armor-Plate Premium construction is intended to provide corrosion resistance and dependable braking performance for everyday front brake replacement.