PowerStop EBR858EVC 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 EBR858EVC) is engineered for reliable braking performance on select BMW models. Designed with high carbon cast iron and a rust-resistant Geomet coating, this vented disc brake rotor offers durability and consistent stopping power for vehicles like the BMW 328i, 330i, and 430i series.

• Constructed from high carbon cast iron for enhanced heat dissipation
• Vented rotor design improves cooling and reduces brake fade
• Geomet rust-resistant coating extends rotor life and prevents corrosion
• Nominal thickness of 0.94 inches (23.80 mm) with discard thickness at 0.88 inches (22.40 mm)
• Overall height of 2.90 inches (73.60 mm) and outside diameter of 12.30 inches (312.00 mm)
• Mounting bolt hole circle diameter of 120.00 mm with 5 lug holes

Detailed Rotor Specifications and Features

This Power Stop rotor is made from high carbon cast iron, which provides improved thermal conductivity and resistance to cracking under high stress. The vented design allows air to flow between the rotor surfaces, helping to dissipate heat more effectively during braking. The Geomet coating offers a protective layer that resists rust and corrosion, maintaining rotor integrity over time, especially in harsh weather conditions.

The rotor’s nominal thickness is 0.94 inches (23.80 mm), with a discard thickness of 0.88 inches (22.40 mm), ensuring it meets OEM specifications for safe operation. Its overall height measures 2.90 inches (73.60 mm), and the outside diameter is 12.30 inches (312.00 mm), making it compatible with specific BMW front brake assemblies. The mounting bolt hole circle diameter is 120.00 mm, accommodating 5 lug holes, which aligns with the bolt pattern on various BMW models.

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

The Power Stop - Front Genuine Geomet High Carbon Coated Rotor line focuses on delivering rotors that combine OEM fitment with enhanced material technology. The high carbon cast iron construction paired with a Geomet coating is designed to provide a balance of durability, corrosion resistance, and thermal management. This product line is suitable for drivers seeking rotors that maintain performance and longevity under typical driving conditions for BMW vehicles.

Compatible BMW Models and Applications

• BMW 228i and 228i xDrive
• BMW 230i and 230i xDrive
• BMW 320i and 320i xDrive
• BMW 328d, 328d xDrive, 328i, 328i GT xDrive, 328i xDrive, 328xi
• BMW 330i, 330i GT xDrive, 330i xDrive
• BMW 340i GT xDrive
• BMW 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe
• BMW 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe
• BMW X1

Common Issues Addressed by This Rotor

• Brake rotor warping due to heat buildup
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency from worn or thin rotors
• Brake noise caused by uneven rotor wear
• Premature rotor failure from inadequate material quality

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surface to prevent rotor runout
• Torque lug nuts to manufacturer specifications for proper fitment
• Inspect brake pads and replace if worn to avoid uneven rotor wear
• Perform a bed-in procedure after installation for optimal braking performance

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The high carbon cast iron material and Geomet coating contribute to consistent braking performance and extended rotor life. While specific warranty details for part number EBR858EVC are not provided here, Power Stop typically offers limited warranties covering defects in materials and workmanship. Refer to official Power Stop documentation for exact warranty terms.