PowerStop AR82137EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR82137EVC) is engineered for reliable braking performance on select Chevrolet and Pontiac models. Designed specifically for rear disc brake applications, this rotor offers corrosion resistance and precise fitment for vehicles like the Chevrolet Caprice and Pontiac G8 SS.

• Compatible with Chevrolet Caprice and Pontiac G8 SS rear brake systems
• Durable Geomet rust-resistant coating for extended rotor life
• Vented disc brake rotor design for improved heat dissipation
• Nominal thickness of 0.87 inches with a discard thickness of 0.79 inches
• Overall height of 2.20 inches and outside diameter of 12.80 inches
• Five lug holes with a 120 mm bolt circle diameter

Detailed Rotor Specifications and Features

This Power Stop rotor features a vented design that enhances cooling during braking, reducing the risk of brake fade under demanding conditions. The Geomet coating provides a protective layer against rust and corrosion, which is critical for maintaining rotor integrity over time, especially in regions with moisture or road salt exposure. The rotor’s nominal thickness is 0.87 inches, with a discard thickness of 0.79 inches, ensuring clear service limits for safe operation. Its overall height measures 2.20 inches, and the outside diameter is 12.80 inches, matching the exact specifications required for rear brake replacement on compatible Chevrolet and Pontiac vehicles.

About the Power Stop - Rear Genuine Geomet Coated Rotor Line

The Power Stop - Rear Genuine Geomet Coated Rotor product line focuses on providing rotors with factory-level quality and corrosion resistance. The Geomet coating is a key feature of this line, offering enhanced protection against rust without compromising braking performance. This line is designed to meet or exceed OEM specifications, making it a suitable choice for maintaining the braking system integrity on rear disc brake setups.

Common Applications and Problem Solving

• Replacement for worn or warped rear rotors on Chevrolet Caprice and Pontiac G8 SS
• Addresses rotor corrosion and rust buildup that can cause uneven braking
• Helps reduce brake noise and vibration associated with damaged rotors
• Improves heat dissipation to prevent brake fade during heavy use
• Restores proper rotor thickness for safe braking performance

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is within the specified limits (nominal thickness 0.87 inches, discard thickness 0.79 inches) to maintain safety standards. Use proper torque specifications for the five lug nuts on the 120 mm bolt circle diameter. It is recommended to inspect brake pads and hardware during rotor replacement to ensure optimal braking system function.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet OEM standards and undergo quality control inspections to ensure durability and performance. The Geomet coating enhances corrosion resistance, contributing to longer rotor life. Warranty details should be confirmed with the product documentation or manufacturer, as they may vary by region and distributor.