Dynamite Friction 631-54178R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54178R) is engineered for reliable braking performance on Ford and Mercury vehicles. Designed specifically for models like the Explorer, Explorer Sport Trac, and Mountaineer, this rotor combines durability with enhanced heat dissipation.

• Disc type: Solid disc brake rotor with drilled and slotted surface
• Nominal thickness: 12.1 mm with discard thickness at 11 mm
• Overall diameter: 301 mm with a height of 58.2 mm
• Directional brake surface for optimized performance
• Rust resistant zinc silver hat finish and plain disc finish
• 5 bolt holes with 13.7 mm diameter and 114.3 mm bolt circle diameter
• Center hole diameter: 82 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 provide improved heat dissipation and consistent braking under demanding conditions. The drilled and slotted surface design helps reduce brake fade by allowing gases and debris to escape, while the directional pattern enhances water dispersion. This rotor line is finished with a rust-resistant zinc silver coating on the hat to extend service life, making it suitable for Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer applications.

Product Specifications and Features

This solid rotor features a nominal thickness of 12.1 mm and a discard thickness of 11 mm, ensuring a clear service limit for safety. The 301 mm outside diameter and 58.2 mm height provide a precise fit for compatible vehicles. The rotor’s 5-bolt pattern with 13.7 mm bolt hole diameter and 114.3 mm bolt circle diameter matches factory specifications for secure mounting. The drilled and slotted surface type is directional, designed to optimize braking efficiency and reduce heat buildup during operation.

Applications and Problem Solving

• Replacement rotor for worn or warped brake discs on Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
• Improves braking performance by reducing heat and brake fade during heavy use
• Helps prevent rust and corrosion with zinc silver coated hat finish
• Addresses issues with brake noise and vibration caused by uneven rotor surfaces
• Maintains consistent braking response in wet or adverse weather conditions due to directional drilled and slotted design

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify that the rotor thickness is above the discard thickness of 11 mm to maintain safety standards. Use proper torque specifications for the 5 lug bolts with 13.7 mm diameter to avoid warping. The directional surface requires correct orientation during installation to maximize performance benefits. It is recommended to inspect brake pads and replace if worn when installing new rotors.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet OEM specifications for Ford and Mercury vehicles, ensuring compatibility and reliable performance. The rust-resistant coating on the hat extends the rotor’s service life. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry standards for quality and durability.