Dynamite Friction 631-54275L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54275L) is engineered for reliable braking performance on Ford Bronco and Ranger models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Ford Bronco and Ranger vehicles
• Directional slotted and drilled surface for improved brake cooling
• Vented rotor design with 311 mm outside diameter
• Zinc silver hat finish with rust-resistant coating
• Nominal thickness of 34 mm and discard thickness of 32 mm
• Six bolt holes with 13.2 mm diameter and 139.7 mm bolt circle diameter
• Center hole diameter of 98 mm and height of 66.35 mm

Detailed Product Features and Specifications

This Dynamite Friction rotor is part of the DFC Brake Rotor - Drilled and Slotted - Silver line, which focuses on delivering rotors with enhanced surface treatments and structural features for improved braking efficiency. The rotor’s vented design allows air to flow between the rotor faces, reducing heat buildup during braking. The drilled and slotted surface helps evacuate gases, dust, and water, contributing to consistent brake pad contact and reduced fade.

The rotor’s zinc silver hat finish provides corrosion resistance, extending the rotor’s service life, especially in environments prone to rust. With a nominal thickness of 34 mm and a discard thickness of 32 mm, this rotor maintains structural integrity while providing clear wear limits for safe replacement. The six bolt holes and matching stud/lug hole quantity ensure proper fitment and secure mounting on compatible Ford Bronco and Ranger models.

Applications and Problem Solving

• Replaces worn or warped rotors on Ford Bronco and Ranger vehicles
• Improves brake cooling to reduce fade during heavy braking
• Enhances braking performance in wet or dusty conditions with slotted and drilled surface
• Prevents rust and corrosion for longer rotor lifespan
• Maintains consistent braking feel and safety under demanding driving conditions

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 32 mm before installation. Clean the rotor surface to remove any protective coatings or contaminants prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the 139.7 mm bolt circle diameter and 13.2 mm bolt hole diameter. Proper torque specifications should be followed to secure the rotor firmly. Directional rotors must be installed with the correct rotation direction to maintain optimal performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-54275L rotor to meet or exceed OEM specifications for Ford Bronco and Ranger models. The rust-resistant coating and zinc silver hat finish contribute to durability and corrosion protection. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliable braking performance and safety.