Dynamic Friction 633-40013L DFC Drilled & Slotted Black Zinc Brake Rotor

The Dynamic Friction Company (DFC) 633-40013L is a premium cross-drilled and slotted disc brake rotor finished in a black zinc coating. Part of DFC's Series 633 performance rotor lineup, this single rotor (driver/left side) is engineered to deliver improved stopping performance over standard blank rotors while maintaining OEM-level fit and reliability.

Constructed from G3000/G11H18 grade cast iron, this rotor meets or exceeds OEM specifications for strength, stability, and long-term durability. The cross-drilled holes help dissipate heat and gases that build up during heavy braking, while the machined slots continuously clean and deglaze brake pad surfaces for consistent bite and shorter stopping distances — especially in wet conditions.

Every DFC rotor is processed at precision machining facilities to the tightest tolerances available, and all vented rotors undergo a 100% electronic mill-balance inspection to eliminate vibration and pedal pulsation. A final quality check at an electronic inspection station measures over 20 critical attributes before the rotor ships.

Key Features:

• Cross-drilled and slotted surface for enhanced heat dissipation and wet-weather performance
• Black zinc coating resists corrosion and provides a clean, finished appearance
• G3000/G11H18 premium cast iron construction matches OEM durability standards
• 100% electronically balanced — eliminates brake pedal pulsation and vibration
• Machined to OE tolerances for direct, no-modification fitment
• Driver/left side (L) position — sold individually (1 rotor per pack)
• Recommended for passenger cars and light trucks

The DFC 633-40013L is an excellent upgrade for drivers who want improved braking confidence and a sportier rotor appearance without sacrificing everyday reliability.