OE Quality
60-Day Returns

Dynamite Friction 633-68018L Disc Brake Rotor - Front Left
Overview of Dynamite Friction DFC Brake Rotor
The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (Part Number 633-68018L) is engineered for reliable braking performance on INFINITI QX50 and QX55 models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.
- Compatible with INFINITI QX50 and QX55
- Part Number: 633-68018L
- Vented disc brake rotor with drilled and slotted surface
- Directional brake surface for optimized performance
- 330 mm outside diameter and 49.6 mm height
- Zinc black hat finish with rust-resistant coating
- 5 bolt holes with 114.3 mm bolt circle diameter
- Nominal thickness of 34 mm and discard thickness of 32 mm
Detailed Product Features and Specifications
This DFC Brake Rotor - Drilled and Slotted - Black is designed with a vented rotor type to improve airflow and reduce heat buildup during braking. The rotor’s surface combines drilled holes and slots arranged directionally to help evacuate gases, dust, and water, which supports consistent brake pad contact and reduces brake fade. The rotor’s hat is finished in zinc black, providing corrosion resistance, while the entire rotor is coated with a rust-resistant layer to extend service life. With a 330 mm outside diameter and a height of 49.6 mm, this rotor fits securely on INFINITI QX50 and QX55 models using a 5-lug bolt pattern with a 114.3 mm bolt circle diameter. The nominal thickness is 34 mm, with a discard thickness of 32 mm, ensuring clear maintenance guidelines for replacement.
About the DFC Brake Rotor - Drilled and Slotted - Black Line
The DFC Brake Rotor - Drilled and Slotted - Black product line by Dynamite Friction focuses on rotors that combine drilled and slotted surfaces with a black zinc-coated hat for enhanced durability and corrosion resistance. This line is designed to provide improved braking performance through better heat dissipation and surface cleaning, making it suitable for drivers who require reliable stopping power and rotor longevity on their vehicles.
Common Applications and Problem Solving
- Reduces brake fade during heavy or repeated braking
- Improves wet weather braking by channeling water away
- Minimizes brake dust buildup on rotor surface
- Prevents rust and corrosion for longer rotor life
- Maintains consistent brake pad contact for smoother stops
Installation Notes and Tips
Ensure the rotor is installed on compatible INFINITI QX50 or QX55 models with the correct 5-lug bolt pattern and 114.3 mm bolt circle diameter. Verify rotor thickness before installation; replace if below the discard thickness of 32 mm. Clean the rotor surface before mounting to remove any protective coatings or residues. Proper torque specifications should be followed for lug nuts to avoid rotor warping.
Quality Assurance and Warranty
Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and zinc black hat finish contribute to durability and corrosion protection. Warranty details are subject to the manufacturer’s terms and should be confirmed at the time of purchase.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 633-68018L |
| Position | DFC Brake Rotor - Drilled and Slotted - Black, Front Left |
| Discard Thickness | 32 |
| Nominal Thickness | 34 |
| Disc Finish | Plain |
| Hat Finish | Zinc black |
| Rust Resistant Coating | Yes |
| Bolt Hole Quantity | 5 |
| Outside Diameter | 330 |
| Height | 49.6 |
| 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 | 114.3 |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2025 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2025 | INFINITI | QX55 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2024 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2024 | INFINITI | QX55 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2023 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2023 | INFINITI | QX55 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2022 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2022 | INFINITI | QX55 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2021 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2020 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
| 2019 | INFINITI | QX50 | Front Left | DFC Brake Rotor - Drilled and Slotted - Black |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.