PowerStop AR8638EVC Disc Brake Rotor - Front

Power Stop Front Genuine Geomet Coated Rotor Overview

The Power Stop - Front Genuine Geomet Coated Rotor (Part Number AR8638EVC) is engineered for reliable braking performance on select Chevrolet, GMC, Isuzu, and Oldsmobile vehicles. Designed specifically for models like the Blazer, Bravada, Hombre, Jimmy, S10, and Sonoma, this vented disc brake rotor offers durability and corrosion resistance for front brake applications.

• Vented disc brake rotor design for improved heat dissipation
• Geomet rust-resistant coating to prevent corrosion
• Nominal thickness of 28.90 mm with a discard thickness of 27.50 mm
• Overall height of 54.70 mm and outside diameter of 274.00 mm
• Mounting bolt hole circle diameter of 120.70 mm with 5 lug holes

Detailed Product Features and Specifications

This Power Stop rotor features a vented design that helps maintain optimal braking temperatures by allowing air to flow between the rotor surfaces. The Geomet coating provides a protective layer against rust and corrosion, extending the rotor's service life, especially in harsh weather conditions. With a nominal thickness of 28.90 mm and a discard thickness of 27.50 mm, this rotor meets precise wear limits to ensure safe braking performance. The rotor's overall height measures 54.70 mm, and it has an outside diameter of 274.00 mm, making it compatible with the front brake system of the specified vehicle models. The mounting bolt hole circle diameter is 120.70 mm, accommodating 5 lug holes with a diameter of 4.80 mm each.

About the Power Stop - Front Genuine Geomet Coated Rotor Line

The Power Stop - Front Genuine Geomet Coated Rotor line focuses on providing rotors with a factory-style Geomet coating that enhances rust resistance without compromising braking efficiency. This product line is designed to meet or exceed OEM specifications, offering a balance of durability and performance for front brake applications on a range of trucks and SUVs, including Chevrolet Blazer and GMC Jimmy models.

Applications and Problem Solving

• Replacement for worn or warped front rotors on Chevrolet S10 and GMC Sonoma
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Prevents rust buildup that can lead to brake drag or uneven pad wear
• Improves heat dissipation to reduce brake fade during heavy use
• Restores proper rotor thickness for consistent braking response

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before removing the existing front rotors. Clean the hub surface thoroughly to prevent rotor runout. Verify the rotor thickness before installation; replace if below the discard thickness of 27.50 mm. Use proper torque specifications on lug nuts to avoid rotor warping. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet strict quality standards and include a rust-resistant Geomet coating for extended durability. While specific warranty details for part number AR8638EVC should be confirmed with the manufacturer, Power Stop typically offers limited warranties covering defects in materials and workmanship.