Centric 320.34138H Disc Brake Rotor - Front

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotor 320.34138H is engineered for reliable braking performance on Mini Cooper Countryman and Cooper Paceman models. Featuring a fully coated surface and high carbon content, this vented rotor is designed to provide consistent stopping power and corrosion resistance.

• Fully coated disc and hat finish for enhanced corrosion protection
• High carbon content for improved wear resistance and heat dissipation
• Vented rotor design to reduce heat buildup during braking
• Floating disc mounting for better rotor alignment and performance
• Compatible with Mini Cooper Countryman and Cooper Paceman models
• Nominal thickness of 0.941 inches (23.9 mm) with discard thickness at 0.882 inches (22.4 mm)
• Outside diameter of 12.087 inches (307 mm) and overall height of 1.780 inches (45.2 mm)
• Five lug holes with a 4.724 inch (120 mm) bolt circle diameter

Product Line Details: Centric GCX Elemental Protection

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on delivering rotors with a full protective coating to resist rust and corrosion. The high carbon content enhances rotor durability and heat management, making these rotors suitable for vehicles like the Mini Cooper Countryman and Cooper Paceman that require reliable braking under varied driving conditions.

Technical Specifications and Features

This rotor features a smooth surface type and a vented vane style to optimize airflow and cooling. The floating disc mounting system helps maintain proper rotor alignment, reducing uneven wear. The rotor’s hat is coated to further protect against environmental damage. With a center hole diameter of 3.110 inches (79 mm) and a weight of approximately 17.6 lbs (7.98 kg), this rotor balances durability and performance for the specified Mini models.

Applications and Problem Solving

• Replacement for worn or warped rotors on Mini Cooper Countryman and Cooper Paceman
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Helps reduce rust and corrosion buildup on braking components
• Improves heat dissipation to prevent brake fade during extended use
• Restores braking efficiency and pedal feel for safer driving

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 0.882 inches (22.4 mm) before installation. Clean the hub surface to remove rust or debris for proper rotor seating. Use the specified five-lug bolt pattern with a 4.724 inch (120 mm) bolt circle diameter. No ABS tone ring or bearings are included with this rotor, so verify compatibility with your vehicle’s braking system. Proper torque specifications should be followed during installation to avoid rotor warping.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The full coating and high carbon content contribute to extended rotor life and consistent braking performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.