Dynamite Friction 631-54209R Disc Brake Rotor - Front Right

Overview of the DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54209R) is engineered for reliable braking performance on Ford E-150, E-250, and E-350 Super Duty models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Ford E-150, E-250, and E-350 Super Duty
• Part number 631-54209R for precise identification
• Vented rotor design for improved cooling
• Directional slotted and drilled surface for enhanced brake pad bite and debris removal
• Zinc silver hat finish with rust-resistant coating
• Eight bolt holes with 9/16-18 diameter for secure mounting
• Outside diameter of 345 mm and overall height of 144 mm
• Nominal thickness of 40 mm with discard thickness at 38.4 mm

Details on 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 slots to improve braking efficiency and rotor longevity. The drilled and slotted design helps to reduce brake fade by allowing gases and heat to escape, while the directional surface pattern optimizes water and debris evacuation. This rotor line is finished with a zinc silver hat and a rust-resistant coating to protect against corrosion, making it suitable for heavy-duty applications such as those found in Ford E-Series vans.

Technical Specifications and Features

This disc brake rotor is vented, which means it has internal vanes between the rotor faces to increase airflow and cooling. The rotor’s outside diameter measures 345 mm, with an overall height of 144 mm and a center hole diameter of 123.8 mm. It features eight bolt holes with a bolt circle diameter of 165.1 mm, matching the stud/lug hole circle diameter for proper fitment. The nominal thickness is 40 mm, with a discard thickness of 38.4 mm, indicating when the rotor should be replaced to maintain safe braking performance.

Applications and Problem Solving

• Replacement rotor for worn or warped rotors on Ford E-150, E-250, and E-350 Super Duty
• Improves heat dissipation to reduce brake fade during heavy braking
• Helps maintain consistent braking performance in wet or debris-prone environments
• Addresses rotor corrosion issues with rust-resistant coating
• Supports safe braking under heavy load or towing conditions

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 38.4 mm before installation. The rotor is directional, so install it following the indicated rotation direction for optimal performance. Use the correct torque specifications for the 9/16-18 bolt holes and verify compatibility with the vehicle’s hub assembly. Clean the rotor surface before mounting to remove any protective coatings or contaminants.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for Ford E-Series vans. The rust-resistant zinc silver hat finish extends rotor life by protecting against corrosion. While no specific warranty information is provided, the rotor’s design and materials support durability and consistent braking performance under normal operating conditions.