Dynamite Friction 633-31103R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31103R) is engineered for BMW 528i and 528i xDrive models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Disc type: Vented, drilled and slotted for improved cooling
• Nominal thickness: 24 mm with discard thickness at 22.4 mm
• Outside diameter: 330 mm for precise fitment
• Hat finish: Zinc black coating for corrosion resistance
• Rust resistant coating applied to extend rotor life
• Bolt hole quantity: 5 with 16.6 mm diameter
• Bolt circle diameter: 120 mm, center hole diameter: 75 mm
• Directional brake surface optimized for performance

Details on 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 with a black zinc-coated hat finish. This design improves heat dissipation and reduces brake fade while providing rust resistance. The directional surface pattern enhances water and debris evacuation, making it suitable for BMW 528i and 528i xDrive vehicles requiring reliable braking under varied conditions.

Technical Specifications and Features

This disc brake rotor measures 330 mm in outside diameter and 66.2 mm in overall height, ensuring compatibility with the specified BMW models. The rotor is vented to allow airflow between the rotor faces, which helps maintain optimal operating temperatures during braking. The zinc black hat finish and rust-resistant coating protect against corrosion, extending the rotor's service life. The rotor features five bolt holes with a 16.6 mm diameter and a 120 mm bolt circle diameter, matching the BMW 528i and 528i xDrive hub specifications.

Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 528i and 528i xDrive
• Improves heat dissipation to reduce brake fade during aggressive driving
• Slotted and drilled design helps evacuate water and debris for consistent braking
• Rust resistant coating prevents corrosion in humid or wet environments
• Directional surface pattern enhances braking performance and pad bite

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction for optimal performance. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt, 120 mm bolt circle pattern. Check rotor thickness before installation; replace if below the discard thickness of 22.4 mm. Properly torque lug nuts to manufacturer specifications to avoid rotor warping.

Quality Assurance

Dynamite Friction rotors are manufactured to meet OEM standards for fit and function. The rust-resistant coating and zinc black hat finish contribute to durability and corrosion protection. While no specific warranty information is provided, these rotors are designed for reliable performance on BMW 528i and 528i xDrive models when installed and maintained correctly.