Centric 320.34085H Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor for BMW

Centric GCX Elemental Protection Disc Brake Rotor 320.34085H is built for rear brake service on select BMW xDrive and xi models. It combines a fully coated finish with high-carbon metallurgy to support OE-style braking performance while helping resist rust on exposed surfaces.

Compatible With 2006-2010 BMW 525xi, 530xi, 528xi, 535xi, 528i xDrive, and 535i xDrive rear brake applications. The Centric GCX rotor line uses application-specific coating patterns and rotor metallurgy to match the friction characteristics and OEM material profile for the vehicle.

Key Features

• Part number 320.34085H
• Rear disc brake rotor for select BMW applications
• Fully coated disc finish and coated hat finish
• High-carbon rotor metallurgy for OE-style performance
• Vented rotor design with smooth surface type
• Centric RS200 coating on non-mating surfaces for corrosion resistance
• 5-lug pattern with 120 mm bolt circle diameter
• Outside diameter: 319.6 mm; overall height: 86.1 mm

Product Details

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line is engineered for drivers who want a direct-fit rear rotor with corrosion protection and material specifications aligned to the original brake system. Centric uses two coating patterns within the GCX family to complement brake pad friction type, and the rotor alloy selection is matched to the OEM metallurgical profile for the application. For BMW 528i xDrive, 535i xDrive, 528xi, 535xi, 525xi, and 530xi rear brake service, this rotor provides a practical replacement option with a coated appearance that helps maintain a cleaner look over time. Part number 320.34085H is also a useful reference when verifying the correct rear rotor for these BMW models.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues It Can Address

• Rear rotor rust on exposed surfaces
• Brake pulsation caused by worn rotor surfaces
• Uneven braking feel from rotor wear
• Noisy braking related to rotor condition
• Loss of braking consistency during routine maintenance

Installation Notes and Tips

Verify rear fitment by year, model, and position before installation. Confirm disc thickness, center hole diameter, bolt circle, and hub dimensions against the existing rotor and vehicle specifications. Clean the hub mounting surface thoroughly so the coated rotor seats evenly, and inspect pads and calipers at the same time to avoid uneven wear. Part number 320.34085H is listed for rear use only on the BMW applications shown above.

Quality Assurance

Centric designs the GCX rotor family to match OE performance targets and uses corrosion-resistant coating on non-mating surfaces to help preserve appearance and service life. The high-carbon alloy selection is intended to align with OEM metallurgy for the listed BMW rear brake applications.