Dynamite Friction 631-54122L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver offers reliable braking performance for Ford Bronco II, Explorer, and Mazda Navajo models. Designed with precision, this vented disc brake rotor ensures effective heat dissipation and consistent stopping power.

• Part Number: 631-54122L
• Disc Type: Vented, drilled and slotted surface
• Nominal Thickness: 22 mm with a discard thickness of 20.6 mm
• Overall Diameter: 261 mm
• Bolt Hole Quantity: 5 with 1/2-20 diameter
• Rust Resistant Zinc Silver Hat Finish
• Directional brake surface for optimized performance
• Bolt Circle Diameter: 114.3 mm

Detailed Product Features and Specifications

This Dynamite Friction rotor features a vented design that improves airflow to reduce heat buildup during braking, which helps maintain consistent brake performance and reduces the risk of warping. The drilled and slotted surface enhances water and debris evacuation, improving wet weather braking and reducing brake fade. The rotor’s nominal thickness is 22 mm, with a discard thickness of 20.6 mm, ensuring a long service life before replacement is necessary.

The rotor’s hat is coated with a zinc silver finish to resist rust and corrosion, extending the rotor’s durability. It includes five bolt holes with a 1/2-20 diameter and a bolt circle diameter of 114.3 mm, matching the factory specifications for Ford Bronco II, Explorer, and Mazda Navajo vehicles. The directional brake surface is engineered to optimize braking efficiency and pad contact.

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction is designed for drivers seeking rotors that balance performance and durability. This product line focuses on vented rotors with drilled and slotted surfaces to improve heat dissipation and braking response. The silver zinc coating on the rotor hat provides additional protection against corrosion, making it suitable for vehicles exposed to varying weather conditions.

Applications and Problem Solving

• Compatible with Ford Bronco II, Explorer, and Mazda Navajo models requiring vented disc brake rotors
• Helps reduce brake fade caused by overheating during heavy braking
• Improves braking performance in wet or debris-prone environments
• Addresses rotor warping issues by enhancing heat dissipation
• Prevents premature rust and corrosion on rotor surfaces

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 20.6 mm before installation. Clean the rotor surface to remove any protective coating or debris prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt pattern and 114.3 mm bolt circle diameter. Properly torque lug nuts to manufacturer specifications to avoid rotor damage or uneven wear.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit and function. The rust-resistant zinc silver finish adds durability against corrosion. Please consult the manufacturer or retailer for specific warranty details related to the 631-54122L brake rotor.