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Dynamite Friction 631-73086L Disc Brake Rotor - Front Left
Overview of the DFC Brake Rotor - Drilled and Slotted - Silver
The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-73086L) is engineered for Audi A4, A4 Quattro, A5, A5 Quattro, and A5 Sportback models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.
- Compatible with Audi A4, A4 Quattro, A5, A5 Quattro, and A5 Sportback
- Part Number: 631-73086L
- Vented disc brake rotor with drilled and slotted surface
- Nominal thickness: 24.8 mm; discard thickness: 23 mm
- Outside diameter: 314 mm; height: 52.4 mm
- Rust resistant zinc silver hat finish with plain disc finish
- 5 bolt holes with 112 mm bolt circle diameter
- Directional brake surface for optimized performance
Product Line Details
The DFC Brake Rotor - Drilled and Slotted - Silver is part of Dynamite Friction's DFC line, which focuses on rotors designed to improve braking efficiency through enhanced heat dissipation and debris removal. The drilled and slotted design helps maintain consistent braking performance under demanding conditions, making it suitable for Audi vehicles requiring reliable stopping power.
Technical Specifications and Features
This disc brake rotor is vented to allow better airflow and heat management, reducing the risk of brake fade during extended use. The rotor's nominal thickness is 24.8 mm, with a discard thickness of 23 mm, ensuring a clear maintenance threshold. The rotor surface is both drilled and slotted, which aids in water and gas evacuation from the braking surface, improving pad bite and overall braking response. The zinc silver hat finish provides rust resistance, extending the rotor's service life. With a 5-bolt hole pattern and a 112 mm bolt circle diameter, this rotor fits securely on compatible Audi models. The directional brake surface is designed to optimize braking efficiency and pad contact.
Applications and Problem Solving
- Replaces worn or warped rotors on Audi A4, A4 Quattro, A5, A5 Quattro, and A5 Sportback
- Improves heat dissipation to reduce brake fade during heavy braking
- Helps prevent rust and corrosion with zinc silver coating
- Enhances braking performance in wet conditions through drilled and slotted design
- Maintains consistent braking feel and pad contact with directional surface
Installation Notes and Tips
Ensure the rotor thickness is above the discard thickness of 23 mm before installation. Clean the rotor surface to remove any protective coatings or residues before mounting. Verify the 5-bolt hole pattern and 112 mm bolt circle diameter match your vehicle’s hub. Properly torque lug nuts to manufacturer specifications to avoid rotor warping. It is recommended to replace brake pads when installing new rotors for optimal performance.
Quality Assurance
Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Silver to meet or exceed OEM specifications for fit and function. The rust resistant zinc silver hat finish helps extend rotor life. While no specific warranty information is provided, the rotor is designed for durability and consistent braking performance on compatible Audi models.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 631-73086L |
| Position | DFC Brake Rotor - Drilled and Slotted - Silver, Front Left |
| Discard Thickness | 23 |
| Nominal Thickness | 24.8 |
| Disc Finish | Plain |
| Hat Finish | Zinc silver |
| Rust Resistant Coating | Yes |
| Bolt Hole Quantity | 5 |
| Outside Diameter | 314 |
| Height | 52.4 |
| Surface Type | Slotted x drilled |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 68 |
| Stud/Lug Hole Quantity | 5 |
| Directional or Non-Directional Brake Surface | Directional |
| Bolt Circle Diameter | 112 |
This part fits 39 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2025 | Audi | A4 Quattro | Front Left | 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2025 | Audi | A5 Sportback | Front Left | 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2024 | Audi | A4 Quattro | Front Left | 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2024 | Audi | A5 Sportback | Front Left | 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2023 | Audi | A4 Quattro | Front Left | 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2023 | Audi | A5 Sportback | Front Left | 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2022 | Audi | A4 Quattro | Front Left | 1-Piston Front Calipers; 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2022 | Audi | A5 Sportback | Front Left | 1-Piston Front Calipers; 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2021 | Audi | A4 Quattro | Front Left | 1-Piston Front Calipers; 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2021 | Audi | A5 Sportback | Front Left | 1-Piston Front Calipers; 314mm Front Disc; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2020 | Audi | A4 | Front Left | to 11/25/2019; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2020 | Audi | A4 | Front Left | from 11/25/2019; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2019 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2018 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2017 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2016 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2016 | Audi | A5 | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2016 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2015 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2015 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2015 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2014 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2014 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2014 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2013 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2013 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2013 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2012 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2012 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2012 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2011 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2011 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2011 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2010 | Audi | A4 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2010 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2009 | Audi | A4 | Sedan | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 2009 | Audi | A5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2008 | Audi | A5 | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2008 | Audi | A5 Quattro | Front Left | ATE Front Calipers; DFC Brake Rotor - Drilled and Slotted - Silver |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.