Dynamite Friction 631-54209L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54209L) 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.

• Compatible with Ford E-150, E-250, and E-350 Super Duty
• Part Number: 631-54209L
• Vented disc brake rotor with slotted and drilled surface
• Nominal thickness: 40 mm; discard thickness: 38.4 mm
• Outside diameter: 345 mm; overall height: 144 mm
• Directional brake surface for optimized performance
• Rust-resistant zinc silver hat finish
• 8 bolt holes with 9/16-18 diameter and 165.1 mm bolt circle diameter

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction offers rotors designed with enhanced cooling and debris removal capabilities. The drilled and slotted surface pattern improves brake pad bite and helps reduce brake fade under demanding conditions. The zinc silver hat finish provides corrosion resistance, extending rotor life especially in environments prone to rust. This product line is tailored for vehicles requiring durable, vented rotors with directional braking surfaces.

Technical Specifications and Features

This disc brake rotor is vented to allow air circulation between the rotor faces, which helps dissipate heat generated during braking. The rotor’s nominal thickness is 40 mm, with a discard thickness of 38.4 mm, indicating when replacement is necessary to maintain safe braking performance. The rotor measures 345 mm in outside diameter and 144 mm in overall height, fitting the specified Ford models precisely. The directional slotted and drilled surface enhances water and gas evacuation, improving braking consistency in wet or high-temperature conditions.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Ford E-150, E-250, and E-350 Super Duty
• Improves heat dissipation to reduce brake fade during heavy-duty or towing applications
• Helps maintain consistent braking performance in wet or dusty environments
• Addresses rotor corrosion issues with rust-resistant zinc silver hat finish
• Supports directional braking surface requirements for specific vehicle brake systems

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 38.4 mm before installation. Clean the rotor surface to remove any protective coatings or contaminants. Verify bolt hole alignment with the 8-hole, 9/16-18 bolt pattern and 165.1 mm bolt circle diameter. Properly torque lug nuts to manufacturer specifications to avoid rotor warping. This rotor is directional; install with the correct rotation direction for optimal performance.

Quality Assurance

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for Ford E-150, E-250, and E-350 Super Duty vehicles. The rust-resistant coating and zinc silver hat finish contribute to long-term durability. While no specific warranty information is provided, the rotor is designed for reliable, professional-grade braking performance consistent with industry standards.