Dynamite Friction 631-54001L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54001L) is engineered for reliable braking performance on select Ford, Mazda, and Mercury vehicles. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for models like the Ford Escort, Mazda Protege, and Mercury Tracer.

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 22 mm with a discard thickness of 20 mm
• Overall diameter: 235 mm with a height of 45 mm
• Bolt hole quantity: 4 with 13 mm diameter holes and 100 mm bolt circle diameter
• Rust resistant zinc silver hat finish and plain disc finish
• Directional brake surface for optimized performance

Product Line Details: DFC Brake Rotor - Drilled and Slotted - Silver

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and aid in heat and gas dissipation. This rotor’s vented design further supports cooling during heavy braking, making it suitable for daily driving and moderate performance needs on compatible Ford, Mazda, and Mercury vehicles.

Technical Specifications and Features

This disc brake rotor features a nominal thickness of 22 mm and a discard thickness of 20 mm, ensuring a clear service limit for safety. The rotor’s 235 mm outside diameter and 45 mm height fit specific vehicle applications requiring a 4-bolt pattern with 13 mm bolt hole diameter and 100 mm bolt circle diameter. The zinc silver coating on the hat provides corrosion resistance, while the plain disc finish maintains a clean surface. The drilled and slotted surface is directional, designed to channel away brake dust and gases, improving pad contact and braking efficiency.

Compatible Vehicles and Applications

• Ford Escort
• Mazda 323 and Protege
• Mercury Tracer

This rotor is intended for use in disc brake systems on these models, addressing common braking issues such as brake fade, uneven pad wear, and overheating.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven brake pad wear due to poor rotor surface design
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency from gas and dust accumulation
• Vibration or noise from warped or damaged rotors

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it is above the discard thickness of 20 mm. Clean the rotor surface to remove any protective coatings or debris before mounting. Verify bolt hole alignment with the vehicle’s hub using the 4-bolt, 100 mm bolt circle pattern. Proper torque specifications should be followed to avoid rotor warping. Directional rotors must be installed with the correct rotation direction for optimal performance.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor with rust-resistant coatings and precise machining to meet OEM standards. While specific warranty details are not provided, the rotor is designed to maintain structural integrity and performance within the specified discard thickness limits. Regular inspection is recommended to ensure continued safety and effectiveness.