Dynamite Friction 631-54031R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54031R) is engineered for reliable braking performance on select Ford, Lincoln, and Mercury vehicles. Designed specifically for models like the Ford Cougar, Lincoln Mark VIII, and Mercury Thunderbird, this rotor combines vented construction with a directional, drilled and slotted surface to enhance heat dissipation and braking consistency.

• Vented disc brake rotor with drilled and slotted surface
• Nominal thickness of 18 mm and discard thickness of 16.7 mm
• Rust-resistant zinc silver hat finish for durability
• Directional brake surface optimized for improved water and debris evacuation
• Five bolt holes with 14.1 mm diameter and 108 mm bolt circle diameter
• Overall diameter of 258 mm and height of 45.5 mm

Detailed Product Features and Specifications

This Dynamite Friction rotor features a vented design that helps reduce heat buildup during braking, which is critical for maintaining consistent stopping power and extending rotor life. The drilled and slotted surface improves brake pad bite and assists in channeling away water and brake dust, reducing the risk of brake fade. The rotor’s directional surface requires proper orientation during installation to maximize performance benefits.

The rotor’s nominal thickness is 18 mm, with a discard thickness of 16.7 mm, indicating when replacement is necessary to maintain safe braking. The zinc silver coating on the hat area provides corrosion resistance, helping to prevent rust and maintain structural integrity over time. With five bolt holes sized at 14.1 mm and a bolt circle diameter of 108 mm, this rotor is designed to fit securely on compatible vehicles.

Compatible Vehicles and Applications

• Ford Cougar brake rotor replacement
• Lincoln Mark VIII disc brake rotor upgrade
• Mercury Thunderbird vented rotor installation
• Addressing brake fade and overheating issues
• Improving braking response in wet or dusty conditions

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction as indicated by the manufacturer. Verify bolt hole alignment with the vehicle’s hub using the 5-lug, 108 mm bolt circle pattern. Check rotor thickness before installation to confirm it meets or exceeds the nominal thickness of 18 mm. Proper torque specifications should be followed to secure the rotor and avoid warping.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Silver to meet industry standards for durability and performance. The rust-resistant coating and vented design contribute to long service life under normal operating conditions. Warranty details are available from the manufacturer or authorized distributors.