Dynamite Friction 631-63146L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-63146L) is engineered for Mercedes-Benz models including GL350, GL450, GLE400, GLS350d, and GLS450. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Nominal thickness: 32 mm with a discard thickness of 29.4 mm
• Overall height: 54.9 mm and rotor height: 55 mm
• Outside diameter: 350 mm for optimal fitment
• Vented rotor design for improved cooling
• Directional slotted and drilled surface for enhanced brake pad contact and debris removal
• Plain disc finish with zinc silver hat finish providing rust resistance
• Rust resistant coating to extend rotor life
• 5 bolt holes with a bolt circle diameter of 112 mm and stud/lug hole diameter of 15.3 mm
• Center hole diameter: 67 mm

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and precision slots to improve braking efficiency and heat dissipation. This product line is designed to meet the demands of performance-oriented vehicles, providing a balance between durability and enhanced stopping power. The silver zinc coating on the rotor hat offers additional protection against corrosion, making it suitable for various driving conditions.

Detailed Product Description

This disc brake rotor is specifically designed for Mercedes-Benz SUVs such as the GL350, GL450, GLE400, GLS350d, and GLS450. The vented rotor construction allows air to flow between the rotor surfaces, reducing heat buildup during braking. The directional slotted and drilled surface helps to evacuate gases, dust, and water from the braking surface, improving pad bite and reducing brake fade. The rotor’s nominal thickness of 32 mm ensures structural integrity, while the discard thickness of 29.4 mm indicates when replacement is necessary for safety. The zinc silver hat finish and rust resistant coating protect against corrosion, extending the rotor’s service life.

Common Applications and Problem Solving

• Reduces brake fade during heavy or repeated braking
• Improves braking performance in wet or dusty conditions
• Minimizes rotor warping caused by excessive heat
• Enhances pad bite and braking responsiveness
• Prevents rust and corrosion on rotor surfaces

Installation Notes and Tips

Ensure the rotor is compatible with your specific Mercedes-Benz model (GL350, GL450, GLE400, GLS350d, GLS450) before installation. Verify the bolt hole pattern (5 holes, 112 mm bolt circle diameter) and center hole diameter (67 mm) match your vehicle’s hub. Clean the rotor surface and hub mounting area to remove any debris or rust before mounting. Use proper torque specifications for lug nuts to avoid rotor damage or uneven wear.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for fit and function. The rust resistant coating and zinc silver hat finish contribute to long-term durability. While no specific warranty information is provided, the rotor’s design and materials align with industry standards for replacement brake rotors on Mercedes-Benz vehicles.