Dynamite Friction 631-54227L Disc Brake Rotor - Rear Left

Reliable Brake Performance for Ford Super Duty Trucks

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54227L) is engineered to provide consistent braking performance for Ford F-250 Super Duty and F-350 Super Duty models. Designed with durability and heat dissipation in mind, this vented disc brake rotor supports safe and effective stopping power under demanding conditions.

• Compatible with Ford F-250 Super Duty and F-350 Super Duty
• Part number 631-54227L for precise identification
• Drilled and slotted surface for improved heat dissipation and debris removal
• Vented rotor design to reduce brake fade
• Zinc silver hat finish with rust-resistant coating for corrosion protection
• Directional brake surface for optimized braking efficiency
• Eight bolt holes with 16.2 mm diameter for secure mounting
• Nominal thickness of 38 mm and discard thickness of 36.4 mm
• Overall diameter of 363 mm and height of 126 mm

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and precision slots to enhance braking performance. This design helps to dissipate heat more effectively and evacuate gases and debris from the braking surface, which is critical for maintaining consistent brake feel and reducing the risk of brake fade. The silver zinc coating on the rotor hat adds a layer of corrosion resistance, extending the rotor's service life in harsh environments.

Technical Specifications and Features

This disc brake rotor features a vented design with an overall diameter of 363 mm and a height of 126 mm, suitable for heavy-duty applications on Ford Super Duty trucks. The rotor includes eight bolt holes with a diameter of 16.2 mm and a bolt circle diameter of 170 mm, ensuring proper fitment and secure installation. The nominal thickness is 38 mm, with a discard thickness of 36.4 mm, indicating when the rotor should be replaced to maintain safe braking performance. The directional slotted and drilled surface improves water and dust evacuation, enhancing braking reliability in various conditions.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford F-250 Super Duty and F-350 Super Duty
• Improves heat dissipation to reduce brake fade during heavy towing or hauling
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Prevents rust and corrosion buildup with rust-resistant coating
• Maintains consistent braking performance under demanding driving conditions

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the bolt hole alignment matches the vehicle’s hub using the eight 16.2 mm bolt holes and 170 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 and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for Ford Super Duty trucks. The rust-resistant zinc silver finish provides added durability against corrosion. While specific warranty details are not provided, Dynamite Friction products are generally backed by quality control standards to ensure reliable performance and fitment.