Centric 320.34072H Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor Overview

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.34072H, is a rear vented rotor built for OE-style braking performance and corrosion resistance. It is a strong match for drivers looking for a rear brake rotor for BMW 535i, 550i, 650i, 545i, or 645Ci applications.

With a fully coated disc finish, coated hat, and smooth surface type, this rotor is engineered to help maintain consistent appearance and protection on non-mating surfaces. The high carbon metallurgy and application-specific coating pattern are part of the GCX product line approach for matching vehicle brake requirements.

Key Features

• Part number 320.34072H
• Rear disc brake rotor for select BMW applications
• Fully coated disc finish with coated hat
• Vented rotor design with straight vanes
• High carbon content metallurgy for OE-style rotor performance
• 13.583 in. outside diameter and 0.945 in. nominal thickness
• 5-lug pattern with 120 mm bolt circle diameter
• Center hole diameter: 2.953 in. / 75 mm
• Floating / DIH disc mounting with 1 miscellaneous hole

About the GCX Product Line

Centric GCX and GCX FC rotors are built around application-specific coating patterns and metallurgy. The GCX line uses Centric’s RS200 finish on non-mating surfaces and high carbon alloy formulations to align with OEM-style rotor profiles, helping support consistent brake feel and long-term surface protection.

Detailed Description

This Centric rear brake rotor is designed for BMW models that require a vented rear rotor with a smooth braking surface and corrosion-resistant coating. The rotor measures 345 mm in outside diameter, 24.0 mm nominal thickness, and 22.4 mm discard thickness, with a 63.2 mm overall height and 19 lb weight. It is a direct-fit style rotor for rear brake service on 2004-2005 BMW 545i, 2004-2005 BMW 645Ci, 2006-2010 BMW 550i, 2006-2010 BMW 650i, and 2008-2010 BMW 535i rear brake applications.

Part number 320.34072H is a practical choice when replacing worn rear rotors on BMW 535i, 550i, 650i, 545i, or 645Ci models and when maintaining OE-style rotor dimensions and coating coverage matters.

Common Problems This Rotor Can Address

• Rear brake pulsation caused by rotor wear or thickness variation
• Rust buildup on exposed rotor surfaces
• Uneven braking performance from worn rear rotors
• Noise related to rotor surface deterioration
• Loss of rotor appearance from corrosion on non-mating surfaces

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and rear brake configuration before installation. Clean the hub mounting surface thoroughly so the rotor seats flat, and inspect pads and caliper hardware for wear before reassembly. Because this rotor is vented and application-specific, confirm the vehicle’s rear brake setup matches the listed BMW fitment before ordering.

Compatible With: Fits 2004-2005 BMW 545i, Rear; Fits 2004-2005 BMW 645Ci, Rear; Fits 2006-2010 BMW 550i, Rear; Fits 2006-2010 BMW 650i, Rear; Fits 2008-2010 BMW 535i, Rear.

Quality Assurance

Centric develops GCX rotors to match OE performance targets and uses high carbon metallurgy plus protective coating coverage to support durability and corrosion resistance. This part number, 320.34072H, is built for consistent fitment across the listed BMW rear brake applications.