Dynamite Friction 631-80039R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-80039R) is engineered for Mazda 3 and Mazda 3 Sport models. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with Mazda 3 and Mazda 3 Sport
• Part Number: 631-80039R
• Solid disc rotor with drilled and slotted surface
• Nominal thickness: 11 mm, discard thickness: 9 mm
• Rust resistant zinc silver hat finish
• 5 bolt holes with 114.3 mm bolt circle diameter
• Directional brake surface for optimized performance
• Center hole diameter: 71.8 mm

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction offers rotors with a plain disc finish and zinc silver coated hats to resist corrosion. This product line focuses on solid rotors with directional, slotted, and drilled surfaces to improve braking efficiency and reduce heat buildup. The rust resistant coating extends rotor life, making it suitable for daily driving conditions on compatible Mazda vehicles.

Technical Specifications and Features

This rotor has a nominal thickness of 11 mm and a discard thickness of 9 mm, ensuring safe replacement intervals. The solid rotor design provides consistent braking feel, while the drilled and slotted surface helps evacuate gases and debris from the brake pad interface. The zinc silver hat finish offers corrosion resistance, maintaining structural integrity over time. With 5 bolt holes and a bolt circle diameter of 114.3 mm, it fits securely on the Mazda 3 and 3 Sport models. The directional surface pattern is engineered to optimize braking performance under various driving conditions.

Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda 3 and Mazda 3 Sport
• Improves heat dissipation to reduce brake fade during extended use
• Helps prevent brake pad glazing by evacuating dust and gases
• Resists rust and corrosion for longer service life
• Maintains consistent braking performance with solid rotor design

Installation Notes and Tips

Ensure the rotor surface is clean and free of oil or debris before installation. Verify the rotor thickness is above the discard thickness of 9 mm to maintain safety standards. Use proper torque specifications for the 5 lug bolts with a 114.3 mm bolt circle diameter. The directional surface requires correct orientation during installation to achieve optimal braking performance. It is recommended to inspect brake pads and hardware during rotor replacement.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for Mazda 3 and Mazda 3 Sport vehicles. The rust resistant zinc silver coating and precise machining ensure durability and reliable performance. While no specific warranty information is provided, adherence to discard thickness and proper installation will help maintain safe braking operation.