Dynamite Friction 631-54228L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54228L) is engineered for reliable braking performance on Ford Transit models. Designed specifically for the Transit-150, Transit-250, Transit-350, and Transit-350 HD, this rotor offers enhanced heat dissipation and consistent stopping power.

• Disc type: Solid disc brake rotor with drilled and slotted surface
• Overall diameter: 308 mm for precise fitment
• Nominal thickness: 18 mm with a discard thickness of 15 mm
• Bolt pattern: 5 lug holes with 12x1.75 mm bolt hole diameter and 150 mm bolt circle diameter
• Rust resistant zinc silver hat finish and plain disc finish
• Directional brake surface for optimized braking efficiency
• Center hole diameter: 122.5 mm for accurate hub alignment
• Height: 25.5 mm overall

Product Line Details

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and heat dissipation. This design helps reduce brake fade and maintain consistent braking performance under demanding conditions. The silver zinc coating on the hat provides corrosion resistance, extending rotor life especially in environments prone to rust.

Technical Description and Features

This solid disc brake rotor features a drilled and slotted surface type, which aids in channeling away gases, dust, and water from the braking surface. The directional design ensures that the rotor is installed correctly to maximize cooling and braking efficiency. With a nominal thickness of 18 mm and a discard thickness of 15 mm, the rotor maintains structural integrity while providing a clear wear limit for safety. The 5-lug bolt pattern with a 150 mm bolt circle diameter and 12x1.75 mm bolt hole diameter matches the factory specifications for Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD models, ensuring proper fitment and secure mounting.

Applications and Problem Solving

• Replacement for worn or warped brake rotors on Ford Transit-150, Transit-250, Transit-350, and Transit-350 HD
• Improves braking performance by reducing heat buildup and brake fade
• Addresses issues with brake noise and vibration caused by uneven rotor surfaces
• Helps prevent rust and corrosion on rotor hats with zinc silver coating
• Maintains consistent braking under heavy load or frequent stop conditions

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction as indicated by the manufacturer. Verify that the bolt hole pattern and center hole diameter match the vehicle hub before installation. It is recommended to inspect brake pads and hardware during rotor replacement to ensure optimal braking system performance. Proper torque specifications should be followed when tightening lug nuts to avoid rotor warping.

Quality Assurance

Dynamite Friction manufactures the 631-54228L rotor to meet or exceed OEM specifications for Ford Transit models. The rust-resistant coating and precision machining contribute to durability and reliable performance. While no specific warranty information is provided, the rotor is designed for professional-grade use and long service life when installed and maintained properly.