PowerStop AR82115EVC Disc Brake Rotor - Rear

Power Stop Rear Evolution Coated Rotor Overview

The Power Stop - Rear Evolution Coated Rotor (Part Number AR82115EVC) is engineered for reliable braking performance on select Cadillac and Chevrolet vehicles. Designed specifically for rear disc brake applications, this rotor offers enhanced durability and corrosion resistance to maintain consistent stopping power.

• Compatible with Cadillac Corvette and Chevrolet XLR rear brake systems
• Vented disc brake rotor construction for improved heat dissipation
• Rust resistant coating to protect against corrosion and extend rotor life
• X-drilled surface type for better brake pad bite and water dispersion
• Full cast construction ensuring structural integrity and strength
• Nominal thickness of 26.1 mm with discard thickness at 24.0 mm
• Outside diameter of 330.3 mm and mounting bolt hole circle diameter of 120 mm
• Five stud/lug hole quantity for secure fitment

Product Line Details: Power Stop - Rear Evolution Coated Rotor

The Power Stop - Rear Evolution Coated Rotor line focuses on providing rotors with advanced coatings and vented designs to improve rotor longevity and braking efficiency. This product line incorporates rust resistant coatings and X-drilled surfaces to reduce corrosion and enhance braking performance under various driving conditions. The AR82115EVC rotor is part of this line, offering a balance of durability and performance for rear brake applications on specific Cadillac and Chevrolet models.

Technical Specifications and Features

This disc brake rotor features a vented design that promotes effective heat dissipation, reducing the risk of brake fade during extended use. The full cast construction provides a solid and reliable rotor base, while the rust resistant coating helps prevent surface corrosion, which is critical for maintaining rotor integrity over time. The X-drilled surface enhances pad bite and helps channel away water and debris, improving braking response in wet conditions. With a nominal thickness of 26.1 mm and a discard thickness of 24.0 mm, this rotor meets standard replacement criteria for safe operation. The rotor’s outside diameter measures 330.3 mm, and it mounts securely with five lug holes on a 120 mm bolt circle diameter.

Applications and Problem Solving

• Replacement rotor for worn or warped rear rotors on Cadillac Corvette and Chevrolet XLR
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Helps reduce brake fade from overheating during aggressive or prolonged braking
• Prevents rust and corrosion-related rotor damage in humid or wet environments
• Improves braking performance in wet conditions with X-drilled surface design

Installation Notes and Tips

Ensure the rotor is compatible with your vehicle’s rear brake system before installation. Clean the hub surface thoroughly to prevent rotor runout. Use proper torque specifications for lug nuts to avoid rotor warping. Since this rotor does not include an ABS tone ring, verify your vehicle’s ABS sensor compatibility. Inspect brake pads and replace if necessary to ensure optimal rotor performance.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The AR82115EVC rotor undergoes rigorous quality control to ensure consistent thickness and surface finish. While specific warranty details are not provided, 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.