PowerStop AR8642XPR Disc Brake Rotor Set - Front

Power Stop Front Drilled, Slotted and Zinc Plated Brake Rotor Pair Overview

The Power Stop - Front Drilled, Slotted and Zinc Plated Brake Rotor Pair (Part Number AR8642XPR) is engineered for reliable braking performance on select GM trucks and SUVs. Designed to meet the demands of vehicles like the Chevrolet Silverado 1500 HD and GMC Sierra 2500, this rotor set offers enhanced heat dissipation and corrosion resistance.

• Front drilled and slotted surface for improved heat and gas dissipation
• Zinc plated coating to resist rust and corrosion
• Vented rotor design for better cooling during heavy braking
• Compatible with 8-lug wheel configurations
• Precision fit for select Cadillac, Chevrolet, GMC, and Hummer models

Detailed Product Features and Specifications

This disc brake rotor set features a vented design with a nominal thickness ranging from 36.50 mm to 38.10 mm, ensuring durability and consistent braking performance. The rotors have an outside diameter of 324 mm (12.80 inches) and an overall height of approximately 89.40 mm (3.50 inches), providing a precise fit for front brake applications. The drilled and slotted surface type enhances braking efficiency by allowing gases and debris to escape, reducing brake fade under demanding conditions. Additionally, the zinc plating offers a rust-resistant coating that extends the rotor's service life, especially in environments prone to moisture and road salt exposure.

Power Stop Brand Line Information

The Power Stop - Front Drilled, Slotted and Zinc Plated Brake Rotor Pair is part of Power Stop's specialized product line designed to improve braking performance through advanced rotor surface technology and protective coatings. This line focuses on combining drilled and slotted rotors with zinc plating to provide both enhanced heat management and corrosion resistance, making it suitable for heavy-duty vehicles like the Chevrolet Silverado 1500 HD Classic and GMC Sierra 2500.

Compatible Vehicles and Applications

• Cadillac DeVille
• Chevrolet Avalanche 2500, Silverado 1500 HD, Silverado 1500 HD Classic, Silverado 2500, Suburban 2500
• GMC Sierra 1500, Sierra 1500 HD, Sierra 1500 HD Classic, Sierra 2500, Yukon XL 2500
• Hummer H2
• Chevrolet Express 2500, Express 3500, Savana 2500

Common Issues Addressed by This Rotor Set

• Brake fade caused by excessive heat buildup during towing or heavy loads
• Corrosion and rust on rotor surfaces reducing braking efficiency
• Uneven brake pad wear due to poor heat dissipation
• Brake noise and vibration from glazed or warped rotors
• Reduced stopping power in demanding driving conditions

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before removing the existing rotors. Clean the hub surface thoroughly to prevent rotor runout. Verify the rotor thickness and discard thickness limits before installation; the discard thickness for this rotor is 36.50 mm. Use proper torque specifications on lug nuts and mounting bolts to avoid warping. It is recommended to replace brake pads when installing new rotors to maintain optimal braking performance.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM specifications, featuring rust-resistant zinc plating and precision machining. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty against defects in materials and workmanship. Always consult the product packaging or manufacturer for exact warranty terms.