Dynamic Friction 604-31148 Disc Brake Rotor - Rear

Dynamic Friction Rear Brake Rotor for BMW X5/X6

The Dynamic Friction DFC GEOSPEC Coated Rotor, part number 604-31148, is a rear disc brake rotor built for select BMW X5 and BMW X6 applications. It is a vented rotor with a 385 mm outside diameter, 24 mm nominal thickness, and 22.4 mm discard thickness for service planning and replacement matching.

Key Features

• Rear disc brake rotor for select BMW X5 and BMW X6 models
• DFC GEOSPEC coated rotor design for corrosion-resistant surface protection
• Vented rotor construction for rear brake heat management
• 385 mm outside diameter, 78.7 mm height, and 5-bolt pattern
• Designed for BMW rear brake rotor replacement applications with aluminum hat rotor specifications
• Includes Disc Brake Pad Wear Sensor on listed aluminum hat rotor applications
• Part number 604-31148 for ordering and catalog matching

DFC GEOSPEC Coated Rotor Line

The DFC GEOSPEC Coated Rotor line focuses on coated brake rotor surfaces for cleaner appearance and added protection in service environments. For BMW X5 and BMW X6 rear brake service, this line is aimed at direct-fit rotor replacement where OE-style dimensions and fitment details matter.

Detailed Description

Part number 604-31148 is a rear vented disc brake rotor from Dynamic Friction for 2010-2013 BMW X5 and 2010-2014 BMW X6 rear brake applications. The rotor measures 385 mm outside diameter with a 24 mm nominal thickness, 22.4 mm discard thickness, 75 mm inside diameter, 78.7 mm height, 16.6 mm bolt hole diameter, and 5 bolt holes. These dimensions support accurate rotor matching for BMW rear brake rotor replacement on X5 and X6 platforms.

Fits 2010-2013 BMW X5, rear. Fits 2010-2014 BMW X6, rear. Listed notes include optional design for full cast disc brake rotors and compatibility with aluminum hat rotors designed to original specifications; the aluminum hat rotor applications include a Disc Brake Pad Wear Sensor. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues It May Address

• Rear brake rotor wear that has reached discard thickness
• Brake pulsation related to rotor thickness variation or surface condition
• Corrosion on exposed rotor surfaces
• Noise or vibration during rear braking service
• Replacement needs for BMW X5 rear brake rotor and BMW X6 rear brake rotor applications

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and rear axle fitment before installation. Confirm whether the vehicle uses a full cast disc brake rotor or an aluminum hat rotor designed to original specifications, and check the Disc Brake Pad Wear Sensor requirement on the applicable BMW X5 and BMW X6 rear brake setup. Always inspect pads, caliper condition, and hub mounting surfaces during rotor replacement.

Quality Assurance

Use the discard thickness specification as the service limit reference during inspection. The coated rotor surface is designed to help maintain a cleaner rotor appearance during normal brake service, while the vented construction supports rear brake heat dissipation in the listed BMW applications.