PowerStop AR8640XPR 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 AR8640XPR) is engineered for reliable braking performance on select GM trucks and SUVs. Designed to meet the demands of vehicles like the Chevrolet Silverado 1500 and GMC Sierra 1500, this rotor set offers enhanced heat dissipation and corrosion resistance.

• Front disc brake rotor set with drilled and slotted surface
• Vented rotor design for improved cooling
• Zinc plated coating for rust resistance
• Nominal thickness of 28.90 mm and discard thickness of 27.20 mm
• 12-inch (305 mm) outside diameter with 6 lug holes
• Compatible with multiple Cadillac, Chevrolet, and GMC models

Detailed Product Features and Specifications

This Power Stop rotor pair features a vented design that helps reduce heat buildup during braking, which is critical for maintaining consistent stopping power and rotor longevity. The drilled and slotted surface improves brake pad bite and helps evacuate gases and debris from the contact area. The zinc plating provides a protective layer against rust and corrosion, extending the rotor's service life, especially in harsh weather conditions.

Each rotor has a nominal thickness of 28.90 mm and a discard thickness of 27.20 mm, ensuring they meet OEM specifications for safe operation. The overall height measures 58.20 mm, and the mounting bolt hole circle diameter is 139.70 mm with 6 lug holes sized at 5.50 mm, making this rotor set compatible with a range of GM vehicles.

Power Stop - Front Drilled, Slotted and Zinc Plated Brake Rotor Pair Product Line

The Power Stop - Front Drilled, Slotted and Zinc Plated Brake Rotor Pair line focuses on delivering rotors that combine enhanced braking performance with durability. This product line is designed to provide improved heat dissipation through vented rotors and increased pad contact via drilled and slotted surfaces. The zinc plating adds a layer of corrosion resistance, making these rotors suitable for vehicles exposed to moisture and road salts.

Compatible Vehicles and Common Applications

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Silverado 1500, Silverado 1500 Classic, Suburban 1500, Tahoe, Avalanche 1500
• GMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500
• Chevrolet Astro, Express 1500, Express 2500, Safari
• GMC Savana 1500, Savana 2500

Issues Addressed by This Rotor Set

• Brake fade caused by excessive heat buildup
• Corrosion and rust on brake rotors reducing lifespan
• Uneven brake pad wear due to poor rotor surface design
• Reduced braking efficiency from gas and debris accumulation
• Compatibility issues with OEM rotor specifications on GM trucks and SUVs

Installation Notes and Tips

When installing the Power Stop AR8640XPR rotor pair, ensure the rotors are cleaned of any protective coating before mounting. Verify the rotor thickness is above the discard thickness of 27.20 mm to maintain safety standards. Use proper torque specifications for the 6 lug bolts and inspect brake pads for wear to optimize braking performance. It is recommended to replace rotors in pairs to maintain balanced braking.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The zinc plating provides additional protection against rust, contributing to the rotor's durability. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty covering defects in materials and workmanship.