Dynamite Friction 631-76142L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-76142L) is engineered for reliable braking performance on select Lexus and Toyota models. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for vehicles like the Lexus GX460, Toyota 4Runner, and Land Cruiser.

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 31.8 mm with discard thickness at 29 mm
• Overall diameter: 338 mm, height: 68.4 mm
• Rust resistant zinc silver hat finish with plain disc finish
• Directional braking surface optimized for heat and debris management
• 6 bolt holes with a bolt circle diameter of 139.4 mm
• Center hole diameter: 108 mm, stud/lug hole diameter: 14.4 mm

Detailed Product Description

This DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed to meet the braking demands of mid to full-size SUVs such as the Lexus GX460, Toyota 4Runner, and Land Cruiser. The rotor features a vented design that improves airflow to reduce heat buildup during braking, which helps maintain consistent stopping power and reduces the risk of brake fade. The drilled and slotted surface enhances water and debris evacuation, improving wet weather braking performance and pad bite. The directional surface pattern is engineered to optimize braking efficiency and rotor longevity.

The rotor’s zinc silver hat finish provides corrosion resistance, extending the rotor’s service life in harsh environments. With a nominal thickness of 31.8 mm and a discard thickness of 29 mm, this rotor offers a balance between durability and performance. The 6-bolt hole configuration with a 139.4 mm bolt circle diameter ensures proper fitment and secure mounting on compatible Lexus and Toyota models.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots with a vented design to improve heat dissipation and braking response. This product line is tailored for vehicles requiring enhanced braking performance under demanding conditions, such as off-road or heavy-duty use. The silver zinc coating on the hat area provides rust resistance, helping maintain rotor integrity over time.

Applications and Problem Solving

• Improves braking performance on Lexus GX460, Toyota 4Runner, and Land Cruiser models
• Reduces brake fade caused by excessive heat buildup
• Enhances wet weather braking by evacuating water and debris
• Minimizes rotor warping and extends rotor life
• Provides corrosion resistance for longer service intervals

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (29 mm) before installation
• Verify bolt hole pattern and center hole diameter match vehicle specifications
• Clean rotor surface before installation to remove any protective coatings
• Use proper torque specifications for lug nuts to avoid rotor damage
• Inspect brake pads and calipers for wear when replacing rotors

Quality Assurance

Dynamite Friction manufactures the 631-76142L rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant zinc silver finish and vented design contribute to durability and consistent braking performance. Warranty information is available through the manufacturer and should be consulted for specific coverage details.