Dynamite Friction 631-54178L Disc Brake Rotor - Rear Left

Overview of DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54178L) is engineered for reliable braking performance on Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Compatible with Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
• Part Number: 631-54178L
• Solid rotor with drilled and slotted surface for improved cooling
• Nominal thickness of 12.1 mm with discard thickness at 11 mm
• Rust-resistant zinc silver hat finish and plain disc finish
• Directional brake surface for optimized performance
• 5 bolt holes with 13.7 mm diameter and 114.3 mm bolt circle diameter
• Overall diameter of 301 mm and height of 58.2 mm

Detailed Product Description

The DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed to meet the braking demands of Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer vehicles. This rotor is a solid type, measuring 301 mm in outside diameter and 58.2 mm in height, providing a robust and durable braking surface. The rotor’s surface is both drilled and slotted, which helps to reduce brake fade by improving heat dissipation and allowing gases and debris to escape during braking.

The rotor features a nominal thickness of 12.1 mm and a discard thickness of 11 mm, ensuring safe replacement intervals. The hat section is coated with a zinc silver finish to resist rust and corrosion, extending the rotor’s service life. The directional brake surface is engineered to optimize braking efficiency and maintain consistent pedal feel under various driving conditions.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced cooling capabilities and corrosion resistance. This product line combines drilled holes and slots on the rotor surface to improve heat dissipation and maintain braking performance during demanding conditions. The zinc silver coating on the hat area further protects against rust, making these rotors suitable for vehicles exposed to moisture and road salt.

Common Applications and Problem Solving

• Reduces brake fade caused by overheating during heavy braking
• Minimizes brake dust and debris buildup on the rotor surface
• Prevents rust and corrosion for longer rotor life
• Maintains consistent braking performance on Ford Explorer and Mercury Mountaineer
• Addresses uneven rotor wear and vibration issues

Installation Notes and Tips

When installing the Dynamite Friction 631-54178L rotor, ensure the rotor surface is clean and free of any protective coatings before mounting. Verify the rotor thickness is above the discard thickness of 11 mm to maintain safety standards. Use the correct torque specifications for the 5 lug bolts with 13.7 mm diameter holes and a 114.3 mm bolt circle diameter. The directional surface must be installed following the indicated rotation direction for optimal performance.

Quality Assurance

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Silver to meet or exceed OEM specifications for Ford and Mercury vehicles. The rotor includes a rust-resistant zinc silver coating on the hat and a plain disc finish to ensure durability. While specific warranty details are not provided, Dynamite Friction products are designed for reliable, long-lasting braking performance when installed and maintained properly.