Perfect Stop 662871 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 662871) is engineered for reliable braking performance on select Hyundai and Kia vehicles. Designed specifically for models like the Hyundai Sonata and Kia Optima, this vented rotor offers consistent heat dissipation and smooth braking response.

• Compatible with Hyundai Magentis, Sonata, and Kia Optima
• Vented disc brake rotor with smooth surface finish
• Overall diameter of 11.024 inches (280 mm) for precise fitment
• Nominal thickness of 1.024 inches (26.0 mm) with discard thickness at 0.961 inches (24.4 mm)
• Four mounting bolt holes with a 4.5 inch (114.3 mm) bolt circle diameter
• Center hole diameter of 2.717 inches (69.0 mm)
• ABS tone ring not included

Product Line Details: Gray Armor-Plate, Premium

The Gray Armor-Plate, Premium line from Perfect Stop focuses on delivering durable rotors with enhanced surface protection and structural integrity. This product line emphasizes vented rotor designs that improve heat dissipation during braking, reducing the risk of warping and maintaining consistent stopping power. The smooth surface finish supports even pad wear and quieter operation, making it suitable for daily driving conditions on compatible Hyundai and Kia models.

Technical Specifications and Features

This disc brake rotor features a vented design to optimize airflow and cooling, which helps maintain braking efficiency under demanding conditions. The rotor’s nominal thickness is 1.024 inches (26.0 mm), with a discard thickness of 0.961 inches (24.4 mm), indicating when replacement is necessary to ensure safety. The overall height measures 1.862 inches (47.3 mm), and the rotor includes four mounting bolt holes arranged on a 4.5 inch (114.3 mm) bolt circle diameter. The center hole diameter is 2.717 inches (69.0 mm), ensuring proper alignment during installation. The smooth surface type supports consistent brake pad contact and reduces noise.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Hyundai Sonata, Magentis, and Kia Optima
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat dissipation to reduce brake fade during extended use
• Restores proper rotor thickness for safe braking performance
• Eliminates noise and vibration associated with damaged rotors

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the mounting bolt hole pattern and center hole diameter match the vehicle specifications. Since this rotor does not include an ABS tone ring, confirm compatibility with the vehicle’s ABS system. Use proper torque specifications for mounting bolts to avoid rotor distortion. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

Perfect Stop rotors undergo rigorous quality control to meet OEM standards for fit and function. The Gray Armor-Plate, Premium rotors are manufactured to provide consistent thickness and balanced construction. While specific warranty details are not provided, Perfect Stop products typically adhere to industry standards for durability and performance.