PowerStop AR8245EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR8245EVC) is engineered for reliable braking performance on select Buick, Cadillac, Oldsmobile, and Pontiac models. Designed as a solid disc brake rotor, it features a rust-resistant Geomet coating to extend rotor life and maintain consistent stopping power.

• Compatible with Buick Allante, Cadillac DeVille, Eldorado, Seville, and more
• Solid disc brake rotor with 11.10 inch (280.80 mm) outside diameter
• Rust resistant Geomet coating for enhanced durability
• Nominal thickness of 10.90 mm with discard thickness at 9.50 mm
• Mounting bolt hole circle diameter of 115.00 mm with 5 lug holes
• Overall height measures 38.40 mm ensuring proper fitment

Detailed Product Description

This Power Stop 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 corrosion resistance compared to standard painted rotors, helping to prevent rust buildup and maintain rotor integrity over time. The solid rotor design is optimized for rear brake applications on specific GM vehicles, including Buick Allante and Cadillac Seville, ensuring consistent braking performance and fitment accuracy.

The rotor's dimensions include a nominal thickness of 10.90 mm and a discard thickness of 9.50 mm, which are critical for maintaining safe braking operation. The 115 mm mounting bolt hole circle diameter and 5 lug holes match the factory specifications for the listed vehicle models, facilitating straightforward installation without modification.

Applications and Problem Solving

• Replacement for worn or warped rear rotors on Buick, Cadillac, Oldsmobile, and Pontiac vehicles
• Addresses rotor corrosion issues with Geomet rust-resistant coating
• Restores proper rotor thickness to prevent brake fade and maintain stopping power
• Eliminates vibration caused by uneven rotor surfaces
• Ensures compatibility with factory brake components for reliable fitment

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 9.50 mm
• Clean mounting surface to ensure proper rotor seating
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Use proper tools to avoid damage to the Geomet coating during installation

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The Geomet coating provides enhanced corrosion resistance, contributing to longer rotor life. While specific warranty details for part number AR8245EVC should be confirmed with the manufacturer, Power Stop typically offers limited warranties covering defects in materials and workmanship.