Dynamite Friction 631-80078L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-80078L) is engineered for Mazda vehicles including the Mazda 6, CX-5, and CX-9. This vented disc brake rotor features a directional, drilled and slotted surface designed to enhance braking performance and heat dissipation.

• Compatible with Mazda 6, CX-5, and CX-9 models
• Vented disc brake rotor with drilled and slotted surface
• Nominal thickness of 28 mm and discard thickness of 26 mm
• 320 mm outside diameter with 5 bolt holes and 114.3 mm bolt circle diameter
• Zinc silver hat finish with rust-resistant coating
• Directional brake surface for optimized braking efficiency

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction offers rotors designed with both drilled holes and slots to improve water and gas evacuation during braking. This combination helps maintain consistent brake pad contact and reduces the risk of brake fade. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life. This product line is tailored for drivers seeking reliable braking components compatible with specific Mazda models.

Technical Specifications and Features

This disc brake rotor is vented to allow better airflow, which aids in heat dissipation during heavy braking. The rotor’s surface is both drilled and slotted, providing a directional pattern that enhances braking performance by channeling away debris and gases. The rotor measures 320 mm in outside diameter and has a height of 51.5 mm. It features a nominal thickness of 28 mm and a discard thickness of 26 mm, ensuring safe replacement intervals. The rotor includes five bolt holes with a bolt circle diameter of 114.3 mm and a center hole diameter of 68 mm, matching the specifications required for Mazda 6, CX-5, and CX-9 models. The zinc silver finish on the rotor hat and rust-resistant coating on the disc surface help protect against corrosion.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Mazda 6, CX-5, and CX-9
• Improves heat dissipation to reduce brake fade during extended braking
• Drilled and slotted design helps maintain consistent braking under wet conditions
• Rust-resistant coating prevents premature corrosion and extends rotor life
• Directional surface pattern optimizes braking efficiency and pad contact

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction as indicated by the vehicle manufacturer. Verify that the bolt hole pattern and center hole diameter match the vehicle hub specifications. It is recommended to replace brake pads when installing new rotors to maintain optimal braking performance. Clean the rotor surface with brake cleaner before installation to remove any protective coatings or residues.

Quality Assurance

The Dynamite Friction 631-80078L rotor is manufactured to meet or exceed OEM specifications for Mazda 6, CX-5, and CX-9 vehicles. The rust-resistant coating and zinc silver hat finish contribute to durability and corrosion resistance. Please consult the product documentation or manufacturer for warranty details.