Dynamite Friction 631-54278L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54278L) is engineered for reliable braking performance on select Ford and Lincoln vehicles. Designed with a directional slotted and drilled surface, this rotor enhances heat dissipation and helps maintain consistent stopping power under demanding conditions.

• Compatible with Ford Aviator, Explorer, and Mustang models
• Directional slotted and drilled disc surface for improved brake pad bite and cooling
• Rust-resistant zinc silver hat finish for extended durability
• Nominal thickness of 26 mm with a discard thickness of 24.5 mm
• 350 mm outside diameter and 39.65 mm height for precise fitment
• 5 bolt holes with 15.7 mm diameter and 114.3 mm bolt circle diameter
• Plain disc finish with a center hole diameter of 71.04 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 optimize brake cooling and debris removal. This design reduces brake fade and improves pad contact, making it suitable for vehicles like the Ford Aviator, Explorer, and Mustang that require dependable braking under varied driving conditions. The silver zinc coating on the rotor hat provides corrosion resistance, helping maintain rotor integrity over time.

Technical Specifications and Features

This disc brake rotor features a directional surface type with both drilled holes and slots, which aid in heat dissipation and gas venting during braking. The rotor’s nominal thickness is 26 mm, with a discard thickness of 24.5 mm, ensuring clear service limits for safety. The rotor measures 350 mm in outside diameter and 39.65 mm in height, designed to fit vehicles with a 5-lug bolt pattern and a bolt circle diameter of 114.3 mm. The zinc silver hat finish provides rust resistance, extending the rotor’s service life.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Ford Aviator, Explorer, and Mustang
• Improves brake cooling to reduce fade during heavy braking or towing
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Resists rust and corrosion to maintain braking performance over time
• Supports consistent brake pad contact for smoother stopping power

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 24.5 mm before installation. Clean the rotor surface to remove any protective coating or debris prior to mounting. Verify the 5-lug bolt pattern and 114.3 mm bolt circle diameter match your vehicle’s specifications. Proper torque on lug nuts is essential to avoid rotor warping. This rotor is directional; install with the correct orientation for optimal performance.

Quality Assurance

Dynamite Friction manufactures the 631-54278L rotor to meet OEM standards for fit and function. The rust-resistant zinc silver coating on the rotor hat enhances durability. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry quality controls to ensure reliable braking performance on Ford and Lincoln vehicles.