Centric 320.34079H Disc Brake Rotor - Front

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content offer reliable braking performance for BMW vehicles. Designed specifically for models like the 130i, 330i, 330xi, and X1, these rotors provide consistent stopping power with enhanced durability.

• Part Number: 320.34079H
• Fully coated disc and hat finish for corrosion resistance
• High carbon content for improved heat dissipation and reduced brake fade
• Vented rotor design with straight vane style for efficient cooling
• Nominal thickness of 0.941 inches (23.9 mm) and discard thickness of 0.882 inches (22.4 mm)
• Outside diameter of 12.992 inches (330 mm) and overall height of 2.882 inches (73.2 mm)
• Floating disc mounting with 5 lug holes (0.579 inches / 14.7 mm diameter)
• Smooth surface type for consistent pad contact

About the Centric GCX Elemental Protection Product Line

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line is engineered to provide enhanced corrosion resistance and thermal performance. The full coating on both the disc and hat surfaces helps protect against rust and extends rotor life, while the high carbon content improves heat management during braking. This product line is suitable for drivers seeking a balance of durability and consistent braking performance in demanding conditions.

Detailed Product Description

This disc brake rotor features a vented design with straight vanes that promote airflow to dissipate heat effectively, reducing the risk of brake fade during extended use. The rotor's fully coated finish on both the disc and hat surfaces offers protection against corrosion, which is especially beneficial for BMW 130i, 330i, 330xi, and X1 models exposed to varying weather conditions. With a nominal thickness of 0.941 inches and a discard thickness of 0.882 inches, this rotor maintains structural integrity and performance throughout its service life. The floating disc mounting and smooth surface type ensure consistent pad contact and braking response.

Compatible Vehicles and Common Applications

• Replacement rotor for BMW 130i brake system maintenance
• Upgrading brake rotors on BMW 330i and 330xi for improved heat management
• Restoring braking performance on BMW X1 models with worn or damaged rotors
• Addressing rotor corrosion and surface wear issues
• Reducing brake fade during daily driving or spirited driving conditions

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the rotor thickness is within specifications, replacing if below discard thickness (0.882 inches). This rotor requires a 5-lug bolt pattern with a 120 mm bolt circle diameter and 14.7 mm lug hole diameter. No bearings or ABS tone ring are included, so reuse existing components as needed. Proper torque specifications should be followed to avoid warping or uneven wear.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The high carbon content and full coating contribute to long-lasting performance and corrosion resistance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Always consult product documentation or manufacturer resources for warranty terms.