Centric 320.34094H Disc Brake Rotor - Rear

Overview of Centric GCX Elemental Protection Disc Brake Rotor

The Centric GCX Elemental Protection Disc Brake Rotor (part number 320.34094H) is engineered for Mini Cooper vehicles requiring reliable braking performance. This solid, fully coated rotor offers enhanced durability and corrosion resistance, designed to meet the specific needs of your Mini Cooper.

• Compatible with Mini Cooper models
• Part Number: 320.34094H
• Solid disc brake rotor with smooth surface finish
• Fully coated disc and hat for corrosion protection
• High carbon content for improved wear resistance
• Nominal thickness: 0.394 inches (10.000 mm)
• Discard thickness: 0.331 inches (8.400 mm)
• Outside diameter: 10.189 inches (258.800 mm)
• Overall height: 1.740 inches (44.200 mm)
• Floating disc mounting with 4 lug holes (0.638 inches diameter)

Product Line Details: Centric GCX Elemental Protection

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on providing rotors with a full protective coating to resist rust and corrosion. This product line uses high carbon content material to enhance rotor durability and thermal stability. The full coating on both the disc and hat surfaces extends rotor life, making it suitable for Mini Cooper owners looking for a maintenance-friendly brake rotor option.

Technical Specifications and Features

This rotor features a solid disc design with a smooth surface type, optimized for consistent braking performance. The nominal thickness of 0.394 inches (10.000 mm) ensures structural integrity, while the discard thickness of 0.331 inches (8.400 mm) indicates the minimum safe thickness before replacement is necessary. The rotor’s outside diameter measures 10.189 inches (258.800 mm), and the overall height is 1.740 inches (44.200 mm). It includes a floating disc mounting system with a mounting bolt hole circle diameter of 100 mm (3.937 inches) and four stud/lug holes sized at 0.638 inches (16.200 mm) diameter. The center hole diameter is 2.524 inches (64.100 mm). This rotor does not include ABS tone rings or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mini Cooper vehicles
• Addresses rotor corrosion and rust issues with full coating
• Improves braking consistency by maintaining smooth rotor surface
• Suitable for vehicles experiencing brake noise or vibration due to rotor wear
• Helps maintain proper brake pad contact and performance

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 0.331 inches before installation. Clean the hub surface and mounting area to prevent uneven rotor seating. Use proper torque specifications on the four lug holes (0.638 inches diameter) to secure the rotor. Since this rotor does not include bearings or ABS tone rings, verify compatibility with your Mini Cooper’s brake system components. The floating disc mounting design allows for slight rotor movement to reduce stress and improve brake feel.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The high carbon content material and full coating process contribute to extended rotor life and corrosion resistance. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or manufacturer resources for exact warranty terms.