Dynamite Friction 631-31015L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31015L) is engineered for BMW models including the 524td, 528e, 533i, 535i, 535is, 635CSi, M5, and M6. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Part Number: 631-31015L
• Compatible with BMW 524td, 528e, 533i, 535i, 535is, 635CSi, M5, M6
• Disc Type: Solid, drilled and slotted
• Nominal Thickness: 10 mm; Discard Thickness: 8.4 mm
• Outside Diameter: 284 mm; Overall Height: 61.1 mm
• Bolt Hole Quantity: 5; Bolt Hole Diameter: 15 mm; Bolt Circle Diameter: 120 mm
• Hat Finish: Zinc silver with rust-resistant coating
• Directional brake surface for optimized performance

Detailed Product Description

The DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed to meet the braking demands of select BMW vehicles. This rotor is solid rather than vented, providing a robust and reliable braking surface. The drilled and slotted design helps to reduce brake fade by improving heat dissipation and allowing gases and debris to escape during braking. The directional surface pattern ensures consistent contact with brake pads, enhancing stopping power and pedal feel.

Constructed with a nominal thickness of 10 mm and a discard thickness of 8.4 mm, this rotor maintains structural integrity throughout its service life. The rotor’s outside diameter measures 284 mm, with an overall height of 61.1 mm, fitting precisely to the specified BMW models. The zinc silver hat finish includes a rust-resistant coating to help prevent corrosion and extend rotor life.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced surface treatments such as drilling and slotting to improve braking efficiency and heat management. This product line is tailored for drivers seeking rotors that balance performance and durability, especially for BMW vehicles requiring precise fitment and reliable braking under various driving conditions.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 5 and 6 Series models
• Improves brake cooling to reduce fade during aggressive driving
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Addresses rust and corrosion issues with rust-resistant coating
• Restores braking performance for vehicles with drilled and slotted rotor requirements

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (8.4 mm) before installation
• Verify bolt hole pattern (5 holes, 15 mm diameter, 120 mm bolt circle) matches vehicle hub
• Clean rotor surface before installation to remove any protective coatings or debris
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with brake pads designed for drilled and slotted rotors

Quality Assurance

Dynamite Friction manufactures the 631-31015L rotor to meet OEM specifications for fit and function on compatible BMW models. The rotor features a rust-resistant zinc silver hat finish to enhance durability. While no specific warranty information is provided, Dynamite Friction products are generally produced under strict quality control standards to ensure reliable braking performance.