Centric 320.35039H Disc Brake Rotor - Rear

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 select Mercedes-Benz models. Designed with a fully coated disc and hat finish, these rotors provide enhanced corrosion resistance and durability for long-term use.

• Compatible with Mercedes-Benz CL500, S430, and S500 models
• Part number 320.35039H
• Vented rotor design with curved vane style for improved heat dissipation
• Fully coated disc and hat finish to resist rust and corrosion
• High carbon content for increased rotor strength and reduced noise
• Nominal outside diameter of 300 mm (11.811 inches)
• Nominal thickness of 22.0 mm (0.866 inches) with discard thickness at 19.4 mm (0.764 inches)
• Five stud/lug holes with a 112 mm (4.409 inches) bolt circle diameter

Product Line Details

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on delivering rotors that combine high carbon metallurgy with a full protective coating. This combination enhances rotor durability and performance by reducing the risk of rust and improving heat management. The high carbon content also helps minimize brake noise and vibration, making these rotors suitable for luxury vehicles like the Mercedes-Benz CL500, S430, and S500.

Technical Specifications and Features

This disc brake rotor features a vented design with curved vanes to optimize airflow and heat dissipation during braking. The rotor's smooth surface finish ensures consistent pad contact and braking performance. The overall height measures 58.4 mm (2.299 inches), and the center hole diameter is 67 mm (2.638 inches), designed to fit precisely on compatible Mercedes-Benz models. The rotor is a floating/dih disc mounting type with one miscellaneous hole, supporting proper alignment and installation.

Applications and Problem Solving

• Replacement for worn or warped rotors on Mercedes-Benz CL500, S430, and S500
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Helps prevent rust and corrosion in humid or salty environments
• Improves braking consistency and heat management during heavy use
• Suitable for vehicles requiring rotors with high carbon content for durability

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 19.4 mm before installation. Clean the hub surface and mounting area to prevent misalignment. Use proper torque specifications for the five lug nuts on the 112 mm bolt circle diameter. Since bearings and ABS tone rings are not included, verify compatibility with existing components on the vehicle. Proper bedding-in of new rotors and pads is recommended to achieve optimal braking performance.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The full coating on both the disc and hat surfaces provides enhanced corrosion resistance, extending rotor life. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.