Dynamite Friction 631-54190R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54190R) is engineered for reliable braking performance on Ford Excursion, F-250 Super Duty, and F-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.

• Disc Type: Vented, directional with drilled and slotted surface
• Nominal Thickness: 38 mm with discard thickness at 36 mm
• Outside Diameter: 331 mm
• Overall Height: 143.5 mm
• Bolt Hole Quantity: 8 with 14x1.5 mm bolt hole diameter
• Bolt Circle Diameter: 170 mm
• Center Hole Diameter: 125 mm
• Hat Finish: Zinc silver coating for corrosion resistance
• Rust Resistant Coating: Yes

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and precision slots to improve brake pad bite and reduce heat buildup. The silver zinc coating on the hat area provides additional protection against rust, extending rotor life. This product line is designed to meet the demands of heavy-duty Ford trucks, offering a balance of durability and performance.

Technical Description and Features

This disc brake rotor is vented to allow air circulation between the rotor faces, which helps dissipate heat generated during braking. The directional slotted and drilled surface improves water and debris evacuation, reducing brake fade and maintaining consistent friction. With a nominal thickness of 38 mm and a discard thickness of 36 mm, this rotor ensures a long service life before replacement is necessary. The zinc silver hat finish and rust-resistant coating protect against corrosion, which is critical for vehicles exposed to harsh environments.

Applications and Problem Solving

• Compatible with Ford Excursion, F-250 Super Duty, and F-350 Super Duty models requiring vented disc brake rotors
• Addresses brake fade caused by excessive heat during heavy towing or hauling
• Reduces water and debris buildup on the rotor surface for improved wet-weather braking
• Helps prevent premature rotor corrosion in environments prone to rust
• Maintains braking performance with directional design for consistent pad contact

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation direction. Verify bolt hole alignment with the 8-hole, 14x1.5 mm bolt pattern and 170 mm bolt circle diameter. Measure rotor thickness before installation to confirm it meets or exceeds the discard thickness of 36 mm. Proper torque specifications should be followed to avoid warping or uneven wear.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for Ford heavy-duty trucks. The rust-resistant coating and zinc silver hat finish contribute to durability and corrosion resistance. While no specific warranty information is provided, the product is designed for reliable performance under demanding conditions typical of Ford Excursion, F-250 Super Duty, and F-350 Super Duty applications.