Dynamite Friction 631-68015L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-68015L) is engineered for reliable braking performance on select Infiniti models. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for vehicles like the Infiniti Q50 and FX50.

• Disc type: Vented disc brake rotor
• Surface finish: Slotted and drilled for improved cooling and debris removal
• Rust resistant zinc silver hat finish with plain disc finish
• Nominal thickness: 20 mm; discard thickness: 18 mm
• Overall diameter: 350 mm; height: 62 mm
• Bolt hole quantity: 5 with 114.3 mm bolt circle diameter
• Center hole diameter: 68 mm; stud/lug hole diameter: 12.8 mm
• Directional brake surface for optimized rotor performance

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 slots to improve brake pad bite and heat dissipation. This design helps maintain consistent braking under demanding conditions by reducing rotor fade and channeling away gases and debris. The zinc silver hat finish adds corrosion resistance, extending rotor life on vehicles such as the Infiniti Q70L and M37.

Detailed Product Description

This disc brake rotor is specifically designed for compatibility with Infiniti models including FX50, M35h, M37, M56, Q50, Q60, Q70, Q70L, and QX70. The vented rotor construction allows air to flow between the rotor faces, improving cooling during heavy braking. The slotted and drilled surface enhances pad cleaning and gas evacuation, which helps maintain braking efficiency. The rotor’s nominal thickness of 20 mm ensures durability, while the discard thickness of 18 mm indicates when replacement is necessary. The zinc silver coating on the hat provides rust resistance, protecting the rotor from corrosion and extending service life.

Common Applications and Problem Solving

• Reduces brake fade during high-performance or heavy-duty driving
• Improves braking response and pad bite on Infiniti Q50 and Q60 models
• Helps prevent rotor warping caused by excessive heat buildup
• Minimizes rust and corrosion on rotor hats for longer durability
• Maintains consistent braking performance under wet or debris-prone conditions

Installation Notes and Tips

Ensure the rotor is installed on compatible Infiniti models as specified. Verify the bolt hole pattern (5 holes, 114.3 mm bolt circle diameter) matches the vehicle hub. Clean the rotor surface before installation to remove any protective coatings or residues. Use proper torque specifications for lug nuts to avoid rotor distortion. Directional rotors must be installed with the correct rotation direction for optimal performance.

Quality Assurance

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and vented design contribute to long-term durability. While no specific warranty information is provided, the rotor is engineered for reliable performance on the listed Infiniti models when installed and maintained properly.