Centric 320.35090H Disc Brake Rotor - Rear

Overview of Centric GCX Elemental Protection Disc Brake Rotor

The Centric GCX Elemental Protection Disc Brake Rotor (part number 320.35090H) is engineered for reliable braking performance on select Mercedes-Benz models. Designed with a full coating and high carbon content, this rotor offers enhanced durability and corrosion resistance for vehicles like the GL320, ML350, and R500.

• Full coating on disc and hat for corrosion protection
• High carbon content for improved heat dissipation and wear resistance
• Solid rotor design with smooth surface finish
• Compatible with Mercedes-Benz GL320, GL450, ML320, ML350, ML450, ML500, ML550, R320, R350, and R500
• Part number 320.35090H ensures precise fitment

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 comprehensive protective coating that covers both the disc and hat surfaces. This full coating helps prevent rust and corrosion, extending rotor life and maintaining consistent braking performance. The high carbon content in these rotors enhances thermal conductivity and reduces the risk of warping under heavy braking conditions, making them suitable for demanding driving scenarios on Mercedes-Benz SUVs and crossovers.

Technical Specifications and Features

This rotor features a nominal thickness of 0.551 inches (14.000 mm) and a discard thickness of 0.449 inches (11.400 mm), ensuring a clear service life indicator. The outside diameter measures 12.992 inches (330.000 mm), with an overall height of 2.476 inches (62.900 mm). It is a solid rotor type with a smooth surface finish, designed for consistent pad contact and braking efficiency. The rotor includes 5 stud/lug holes with a diameter of 0.602 inches (15.300 mm) and a mounting bolt hole circle diameter of 4.409 inches (112.000 mm). The center hole diameter is 2.638 inches (67.000 mm), and the rotor weighs approximately 17.5 lbs (7.95 kgs). This part does not include an ABS tone ring or bearings.

Compatible Vehicles and Applications

• Mercedes-Benz GL320 and GL450
• Mercedes-Benz ML320, ML350, ML450, ML500, ML550
• Mercedes-Benz R320, R350, R500

This rotor is designed to replace worn or damaged disc brake rotors on these specific Mercedes-Benz models, restoring braking performance and safety.

Common Issues Addressed by This Rotor

• Brake rotor warping or uneven wear causing vibration
• Corrosion and rust buildup reducing rotor lifespan
• Reduced braking efficiency due to worn or thin rotors
• Brake noise caused by surface irregularities
• Maintaining proper rotor thickness for safe braking

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets or exceeds the nominal thickness of 0.551 inches (14.000 mm). Clean the hub surface thoroughly to prevent uneven rotor mounting. Since this rotor does not include bearings or an ABS tone ring, verify compatibility with your vehicle’s existing components. Proper torque specifications should be followed for mounting bolts to avoid rotor distortion.

Quality Assurance and Warranty

Centric rotors undergo rigorous quality control to meet OEM standards for fit, form, and function. The full coating and high carbon content contribute to extended rotor life and consistent braking performance. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.