Dynamite Friction 633-31075L Disc Brake Rotor - Rear Left

Reliable Performance for BMW Brake Systems

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31075L) is engineered to provide consistent braking performance for select BMW models. Designed specifically for vehicles like the BMW 525xi, 528i xDrive, 528xi, 530xi, and 535i xDrive, this rotor offers enhanced heat dissipation and improved stopping power.

• Disc type: Vented disc brake rotor for efficient heat management
• Surface finish: Directional drilled and slotted design for better brake pad bite and debris removal
• Rust resistant zinc black hat finish to reduce corrosion
• Nominal thickness of 19.9 mm with a discard thickness of 18.4 mm
• Overall diameter of 320 mm and height of 86.1 mm for precise fitment
• 5 bolt holes with 14.8 mm diameter and 120 mm bolt circle diameter
• Center hole diameter of 75 mm for proper hub alignment

About the DFC Brake Rotor - Drilled and Slotted - Black Line

The DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve braking efficiency and rotor cooling. This product line is designed to reduce brake fade and maintain consistent performance under demanding conditions. The black zinc coating on the rotor hat enhances corrosion resistance, extending the rotor's service life while maintaining a clean appearance.

Technical Details and Specifications

This vented rotor features a directional surface type with both drilled holes and slots, which help evacuate gases, dust, and water from the braking surface. The rotor's nominal thickness is 19.9 mm, with a discard thickness of 18.4 mm, ensuring safe replacement intervals. The rotor measures 320 mm in outside diameter and 86.1 mm in overall height, matching the exact specifications required for compatible BMW models. The zinc black finish on the hat provides rust resistance, while the plain disc finish maintains a smooth braking surface.

Applications and Problem Solving

• Compatible with BMW 525xi, 528i xDrive, 528xi, 530xi, and 535i xDrive models
• Addresses brake fade caused by excessive heat during aggressive driving
• Helps reduce brake dust buildup and improves pad contact with slotted and drilled design
• Prevents rust and corrosion on rotor hats for longer durability
• Maintains consistent braking performance under wet conditions with directional surface

Installation Notes and Tips

Ensure the rotor is installed on vehicles matching the specified fitment to maintain proper brake system function. Verify the bolt hole pattern (5 holes, 14.8 mm diameter, 120 mm bolt circle) and center hole diameter (75 mm) before installation. It is recommended to replace brake pads simultaneously to optimize braking performance. Always follow manufacturer torque specifications when securing the rotor.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet OEM standards for fit, form, and function. The rust-resistant coating and vented design contribute to the rotor's durability and performance consistency. Please refer to Dynamite Friction's warranty policy for specific coverage details related to the 633-31075L part number.