Dynamite Friction 900-31104 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for BMW 5 Series Models

The Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor (Part Number 900-31104) is engineered for precision braking performance on select BMW vehicles. Designed specifically for models like the 528i, 535i, and ActiveHybrid 5, this vented disc brake rotor offers consistent heat dissipation and durability.

• Compatible with BMW 528i, 528i xDrive, 535d, 535d xDrive, 535i, 535i xDrive, and ActiveHybrid 5
• Part Number: 900-31104
• Vented rotor design for improved cooling
• Nominal thickness of 20 mm with discard thickness at 18.4 mm
• Outside diameter of 330 mm and inside diameter of 75 mm
• Five bolt holes with 16.6 mm diameter each
• Height of 69.1 mm for precise fitment

About the DFC Hi-Carbon Alloy GEOMET Coated Rotor Line

The DFC Hi-Carbon Alloy GEOMET Coated Rotor line from Dynamite Friction focuses on enhanced rotor longevity and corrosion resistance. The GEOMET coating provides a protective layer that helps reduce rust formation, while the high-carbon alloy construction improves thermal stability and wear resistance. This rotor line is designed to meet the demands of modern BMW braking systems, ensuring reliable stopping power under various driving conditions.

Technical Specifications and Features

This disc brake rotor features a vented design that promotes efficient heat dissipation, reducing the risk of brake fade during extended use. The nominal thickness of 20 mm ensures structural integrity, while the discard thickness of 18.4 mm indicates when replacement is necessary to maintain safe braking performance. The rotor’s 330 mm outside diameter and 75 mm inside diameter are engineered for exact fitment on compatible BMW 5 Series models. The five bolt holes, each with a diameter of 16.6 mm, align precisely with the vehicle’s hub assembly, and the rotor height of 69.1 mm supports proper caliper clearance.

Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 528i and 535i models
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Improves braking consistency in vehicles experiencing heat-related fade
• Prevents corrosion-related rotor degradation with GEOMET coating
• Supports safe braking performance for xDrive and ActiveHybrid 5 variants

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 18.4 mm to maintain safety standards. Use proper torque specifications for the five bolt holes to avoid rotor warping. It is recommended to inspect brake pads and calipers during rotor replacement to ensure overall system integrity.

Quality Assurance and Warranty

Dynamite Friction manufactures the 900-31104 rotor to meet OEM standards for fit and function. The DFC Hi-Carbon Alloy GEOMET Coated Rotor undergoes rigorous quality control to ensure durability and performance. Warranty details should be confirmed with the original equipment provider or distributor.