Dynamite Friction 631-54203L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54203L) is engineered for reliable braking performance on Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Nominal thickness: 30 mm with a discard thickness of 28.5 mm
• Vented rotor design for improved cooling
• Directional drilled and slotted surface for debris removal and heat management
• Rust-resistant zinc silver hat finish
• 5 bolt holes with 13.65 mm diameter and 114.4 mm bolt circle diameter
• Overall diameter of 305 mm and height of 54.3 mm
• Center hole diameter of 82 mm for precise fitment

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 on the braking surface to improve water, gas, and dust evacuation. This design helps maintain consistent brake pad contact and reduces the risk of brake fade under demanding conditions. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life especially in environments prone to rust.

Technical Description and Fitment

This disc brake rotor is specifically designed for compatibility with Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer vehicles. The rotor’s vented construction allows air to flow between the rotor faces, enhancing heat dissipation during braking. The directional drilled and slotted surface improves braking efficiency by channeling away brake dust and gases, which can otherwise reduce friction. The rotor measures 305 mm in outside diameter and 54.3 mm in height, with a 5-lug bolt pattern featuring 13.65 mm diameter holes on a 114.4 mm bolt circle diameter. The zinc silver hat finish provides rust resistance, helping maintain structural integrity over time.

Common Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on compatible Ford and Mercury SUVs
• Improves braking performance in wet or dusty conditions by evacuating water and debris
• Reduces brake fade during extended or heavy braking situations
• Addresses rotor corrosion issues with rust-resistant coating
• Maintains consistent brake pad contact through directional slotted and drilled design

Installation Notes and Tips

Ensure the rotor is installed on compatible Ford Explorer, Explorer Sport Trac, or Mercury Mountaineer models matching the 5-lug bolt pattern and dimensions. Verify the rotor thickness before installation; replace if below the discard thickness of 28.5 mm. Properly torque lug nuts to manufacturer specifications to avoid rotor warping. Clean the rotor surface of any protective coatings or oils before mounting brake pads to ensure optimal friction.

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-54203L rotor to meet OEM specifications for fit and function. The rust-resistant zinc silver coating enhances durability against corrosion. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry standards for quality and reliability.