PowerStop EBR839EVC Disc Brake Rotor - Front

Power Stop Front Genuine Geomet High Carbon Coated Rotor Overview

The Power Stop - Front Genuine Geomet High Carbon Coated Rotor (Part Number EBR839EVC) is engineered for Audi S4 and S5 models. Designed to provide reliable braking performance, this vented disc brake rotor features a high carbon cast iron construction with a rust-resistant Geomet coating for enhanced durability.

• High carbon cast iron material for improved heat dissipation and wear resistance
• Vented rotor design to reduce brake fade during extended use
• Rust-resistant Geomet coating to protect against corrosion
• Nominal thickness of 1.18 inches (30.00 mm) with discard thickness at 1.10 inches (28.00 mm)
• Outside diameter of 13.60 inches (344.60 mm) suitable for front brake applications
• Mounting bolt hole circle diameter of 4.40 inches (112.00 mm) with 5 lug holes
• Overall height of 2.00 inches (51.90 mm) for proper fitment

Product Line Details: Power Stop - Front Genuine Geomet High Carbon Coated Rotor

This rotor is part of the Power Stop - Front Genuine Geomet High Carbon Coated Rotor line, which focuses on delivering rotors with enhanced corrosion resistance and thermal performance. The Geomet coating applied to the high carbon cast iron rotor helps extend the rotor's service life by preventing rust buildup, while the high carbon content improves heat management during braking. This product line is designed to meet or exceed OEM specifications for front disc brake rotors on select Audi vehicles.

Technical Description and Fitment

The EBR839EVC rotor is specifically compatible with Audi S4 and S5 models, ensuring precise fitment and optimal braking function. Its vented design allows air to circulate between the rotor surfaces, reducing heat buildup and minimizing brake fade under demanding driving conditions. The rotor's nominal thickness of 1.18 inches (30.00 mm) and discard thickness of 1.10 inches (28.00 mm) provide clear service limits for maintenance. The 5-lug hole pattern with a 4.40-inch (112.00 mm) bolt circle diameter matches factory specifications for secure mounting.

Common Applications and Problem Solving

• Replacement for worn or warped front rotors on Audi S4 and S5
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Helps reduce rust and corrosion-related rotor damage
• Improves braking consistency during high-temperature conditions
• Restores proper rotor thickness for safe braking performance

Installation Notes and Tips

When installing the Power Stop EBR839EVC rotor, ensure the rotor surface is clean and free of any contaminants before mounting. Verify that the rotor thickness is above the discard limit of 1.10 inches (28.00 mm) to maintain safety standards. Use proper torque specifications for the 5-lug mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to ensure even wear and optimal braking efficiency.

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet strict quality standards, using high carbon cast iron and advanced coating processes to ensure durability and performance. While specific warranty details for part number EBR839EVC are not provided here, 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.