Dynamite Friction 631-31103R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31103R) 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.

• Compatible with BMW 528i and 528i xDrive
• Directional drilled and slotted surface for improved brake pad bite and cooling
• Vented rotor design to reduce heat buildup
• Nominal thickness of 24 mm with discard thickness at 22.4 mm
• Zinc silver hat finish with rust-resistant coating for corrosion protection
• Five bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 330 mm and height of 66.2 mm

Detailed Product Description

The DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed specifically for BMW 528i and 528i xDrive vehicles, ensuring precise fitment and reliable braking performance. This rotor features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade. The directional surface combines drilled holes and slots to improve water and debris evacuation, enhancing braking consistency in various driving conditions.

Constructed with a plain disc finish and a zinc silver hat finish, this rotor offers corrosion resistance to extend service life. The rotor’s nominal thickness is 24 mm, with a discard thickness of 22.4 mm, providing clear maintenance guidelines. The five bolt holes, each 16.6 mm in diameter, align with the 120 mm bolt circle diameter, ensuring secure mounting on compatible BMW models.

Applications and Problem Solving

• Replaces worn or warped rotors on BMW 528i and 528i xDrive
• Improves braking performance under wet or high-heat conditions
• Reduces brake fade during extended or aggressive driving
• Prevents rust and corrosion-related rotor damage
• Enhances brake pad bite and reduces noise with slotted and drilled design

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 22.4 mm discard thickness
• Ensure proper torque on the five lug bolts (16.6 mm diameter) to 120 mm bolt circle specifications
• Clean rotor surface before installation to remove any protective coatings or debris
• Check compatibility with BMW 528i and 528i xDrive models prior to purchase
• Use appropriate brake pads designed for drilled and slotted rotors to maximize performance

Quality Assurance and Warranty

Dynamite Friction’s DFC Brake Rotor - Drilled and Slotted - Silver is manufactured to meet OEM specifications for fit and function on BMW 528i and 528i xDrive vehicles. The rotor includes a rust-resistant coating and zinc silver hat finish to enhance durability. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry standards for quality and reliability.