Dynamite Friction 631-73057L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver offers reliable braking performance for Audi vehicles. Designed specifically for Audi A4, A4 Quattro, A5, A5 Quattro, and Q5 models, this rotor combines vented construction with a directional, drilled and slotted surface to enhance heat dissipation and braking consistency.

• Part Number: 631-73057L
• Disc Type: Vented disc brake rotor
• Surface Finish: Directional drilled and slotted
• Rust Resistant Zinc Silver Hat Finish
• Nominal Thickness: 29.8 mm with a discard thickness of 28 mm
• Outside Diameter: 320 mm
• Bolt Hole Quantity: 5 with 112 mm bolt circle diameter
• Center Hole Diameter: 68 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is engineered with a vented rotor design to improve airflow and reduce heat buildup during braking. The rotor features a directional surface with both drilled holes and slots, which help to evacuate gases, dust, and water, maintaining consistent brake pad contact and reducing brake fade. The rotor’s nominal thickness is 29.8 mm, with a discard thickness of 28 mm, ensuring durability and safety over its service life.

The rotor’s hat is coated with a zinc silver finish to resist corrosion, extending the rotor’s lifespan in various driving conditions. It includes five bolt holes with a 112 mm bolt circle diameter, matching the factory specifications for Audi A4, A4 Quattro, A5, A5 Quattro, and Q5 models. The center hole diameter is 68 mm, and the stud/lug hole diameter is 15.2 mm, ensuring proper fitment and secure installation.

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced heat dissipation and improved braking response. The drilled and slotted design is intended to optimize brake pad bite and reduce the risk of brake fade under demanding conditions. This product line is suitable for drivers seeking a balance between performance and durability, especially for Audi vehicles requiring precise fitment and reliable braking components.

Applications and Problem Solving

• Compatible with Audi A4, A4 Quattro, A5, A5 Quattro, and Q5 models requiring vented disc brake rotors
• Helps reduce brake fade caused by excessive heat buildup
• Improves braking performance in wet or dusty conditions by evacuating debris and moisture
• Addresses rotor corrosion issues with rust-resistant zinc silver coating
• Maintains consistent brake pad contact through directional drilled and slotted surface

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 28 mm before installation. Clean the hub surface and mounting area to prevent runout and vibration. Use proper torque specifications for the 5-bolt pattern with a 112 mm bolt circle diameter. Verify the rotor’s directional surface is installed correctly to maintain optimal braking performance. This rotor is designed for direct replacement on compatible Audi models without modification.

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-73057L rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and vented design contribute to long service life and reliable braking performance. Warranty details are provided by the manufacturer and should be confirmed at the time of purchase.