PowerStop AR8264EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR8264EVC) is engineered for reliable braking performance on select Buick, Cadillac, and Pontiac models. Designed specifically for rear disc brake applications, this rotor offers corrosion resistance and precise fitment for vehicles like the Buick Park Avenue, Cadillac DeVille, and Pontiac Bonneville.

• Compatible with Buick Bonneville, Cadillac DeVille, Park Avenue, and Seville rear disc brakes
• Solid disc brake rotor with a 297 mm (11.70 inch) outside diameter
• Nominal thickness of 11.10 mm (0.44 inch) with a discard thickness of 9.00 mm
• Rust resistant Geomet coating for enhanced durability
• Mounting bolt hole circle diameter of 114.30 mm (4.50 inches) with 5 lug holes
• Overall height measures 38.80 mm (1.50 inches)

Product Line Details: Power Stop - Rear Genuine Geomet Coated Rotor

This rotor is part of the Power Stop - Rear Genuine Geomet Coated Rotor line, which focuses on providing rotors with a factory-style Geomet coating. This coating offers superior rust resistance compared to standard rotors, helping to extend the service life and maintain consistent braking performance. The solid rotor design is optimized for rear brake systems on select GM luxury and full-size sedans, ensuring proper fit and function.

Technical Specifications and Features

The AR8264EVC rotor features a solid disc design with an outside diameter of 297 mm (11.70 inches), suitable for rear brake assemblies on compatible Buick, Cadillac, and Pontiac vehicles. The nominal thickness is 11.10 mm (0.44 inch), with a discard thickness of 9.00 mm, indicating when the rotor should be replaced to maintain safe braking. The rotor’s overall height is 38.80 mm (1.50 inches), and it mounts using a 5-lug pattern with a bolt hole circle diameter of 114.30 mm (4.50 inches). The Geomet coating provides a rust-resistant surface that helps prevent corrosion and extends rotor life.

Common Applications and Problem Solving

• Replacement for worn or warped rear rotors on Buick Bonneville and Park Avenue
• Restores braking performance on Cadillac DeVille and Seville with rear disc brakes
• Addresses rotor corrosion issues due to environmental exposure
• Eliminates brake noise caused by uneven rotor surfaces
• Prevents brake pulsation from rotor thickness variation

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets or exceeds the nominal thickness of 11.10 mm. Replace rotors if thickness is below the discard thickness of 9.00 mm. Clean the rotor surface and hub mounting area to remove rust or debris before installation. Use proper torque specifications for the 5-lug mounting pattern with a 114.30 mm bolt circle diameter. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

Power Stop rotors, including the AR8264EVC, are manufactured to meet or exceed OEM specifications for fit, form, and function. The Geomet coating enhances corrosion resistance, contributing to longer rotor life. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.