Dynamite Friction 631-68004L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-68004L) is engineered for reliable braking performance on INFINITI J30 and Q45 models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Compatible with INFINITI J30 and Q45 vehicles
• Directional slotted and drilled surface for improved brake cooling
• Vented rotor design to reduce heat buildup
• Rust-resistant zinc silver hat finish
• 5 bolt holes with 114.3 mm bolt circle diameter
• Nominal thickness of 16 mm with a discard thickness of 14 mm
• Overall diameter of 292 mm and height of 64.1 mm

Product Line Details: DFC Brake Rotor - Drilled and Slotted - Silver

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction offers rotors with a plain disc finish and zinc silver coated hats to resist corrosion. The drilled and slotted surface pattern is directional, designed to optimize brake pad contact and improve water and gas evacuation during braking. This product line focuses on maintaining rotor integrity and performance under demanding conditions, making it suitable for INFINITI J30 and Q45 models requiring reliable vented rotors.

Technical Specifications and Features

This disc brake rotor features a nominal thickness of 16 mm and a discard thickness of 14 mm, ensuring a clear service life indicator. The rotor is vented to allow airflow through the rotor vanes, reducing heat and minimizing brake fade. The rotor's outside diameter measures 292 mm, with an overall height of 64.1 mm. The hat section is finished with a zinc silver coating to provide rust resistance, extending the rotor's durability. The rotor includes five bolt holes with a bolt circle diameter of 114.3 mm and stud/lug hole diameter of 12.7 mm, matching the specifications required for INFINITI J30 and Q45 brake systems.

Applications and Problem Solving

• Replacement rotor for worn or warped rotors on INFINITI J30 and Q45
• Improves heat dissipation to reduce brake fade during heavy braking
• Helps prevent rust and corrosion with zinc silver hat finish
• Enhances braking performance in wet conditions with drilled and slotted design
• Maintains consistent braking feel by reducing gas and dust buildup

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 14 mm before installation. Clean the rotor surface to remove any protective coatings or debris prior to mounting. Verify bolt hole alignment with the 5-lug pattern and 114.3 mm bolt circle diameter. Use proper torque specifications for lug nuts to avoid rotor warping. It is recommended to replace brake pads when installing new rotors to ensure optimal braking performance.

Quality Assurance

Dynamite Friction manufactures the 631-68004L rotor to meet OEM specifications for INFINITI J30 and Q45 models. The rust-resistant coating and vented design contribute to long service life and consistent braking performance. While no specific warranty information is provided, this rotor is produced under quality control standards typical for replacement brake components.