PowerStop AR82119EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR82119EVC) is engineered for reliable braking performance on Cadillac CTS and STS models. Designed with a rust-resistant Geomet coating and vented rotor construction, this disc brake rotor offers durability and efficient heat dissipation for rear brake applications.

• Compatible with Cadillac CTS and STS rear brake systems
• Vented disc brake rotor design for improved cooling
• Rust resistant Geomet coating to prevent corrosion
• Nominal thickness of 26.00 mm with a discard thickness of 24.00 mm
• Overall height options of 1.90 inches and 48.00 mm
• Outside diameter of 12.60 inches (320 mm)
• Mounting bolt hole circle diameter of 115.00 mm with 5 lug holes

Power Stop - Rear Genuine Geomet Coated Rotor Product Line

The Power Stop - Rear Genuine Geomet Coated Rotor line focuses on providing rotors with a factory-style Geomet coating that enhances corrosion resistance without compromising braking performance. This coating extends rotor life by protecting against rust, which is especially beneficial for vehicles like the Cadillac CTS and STS that require dependable rear brake components. The vented rotor design further supports heat management during braking, maintaining consistent stopping power.

Detailed Product Description

This disc brake rotor features a vented design that allows air to flow between the rotor surfaces, reducing heat buildup and minimizing brake fade during extended use. The rotor's nominal thickness is 26.00 mm, with a discard thickness of 24.00 mm, ensuring it meets safety standards for replacement. The Geomet coating provides a protective layer against rust and corrosion, which is critical for maintaining rotor integrity over time. With an outside diameter of 12.60 inches (320 mm) and a mounting bolt hole circle diameter of 115.00 mm, this rotor is specifically designed to fit the rear brake assemblies of Cadillac CTS and STS models. The rotor includes five stud/lug holes to match factory specifications.

Common Applications and Issues Addressed

• Replacement for worn or warped rear rotors on Cadillac CTS and STS
• Prevention of rust and corrosion-related rotor damage
• Improved heat dissipation to reduce brake fade during heavy braking
• Restoration of smooth and consistent rear braking performance
• Addressing rotor thickness below manufacturer discard limits

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 nominal range and above the discard thickness of 24.00 mm. Use proper torque specifications for the 5 lug bolts to secure the rotor. It is recommended to inspect brake pads and other related components during rotor replacement to maintain optimal braking system performance.

Quality Assurance and Warranty

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR82119EVC) is manufactured to meet or exceed OEM specifications for Cadillac CTS and STS rear brake rotors. The rust-resistant Geomet coating and vented design contribute to long-lasting durability. Warranty details are provided by the manufacturer and should be reviewed at the time of purchase.