Dynamite Friction 631-31059R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31059R) is engineered for BMW 745i, 745Li, 760i, and 760Li models. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Disc Type: Vented disc brake rotor
• Surface: Directional slotted and drilled
• Outside Diameter: 345 mm
• Nominal Thickness: 24 mm with a discard thickness of 22.4 mm
• Bolt Hole Quantity: 5 with 16.9 mm diameter
• Bolt Circle Diameter: 120 mm
• Hat Finish: Zinc silver coating
• Rust Resistant Coating: Yes
• Center Hole Diameter: 79 mm
• Overall Height: 67 mm

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction is designed to provide reliable braking performance with enhanced heat management. The drilled and slotted surface helps reduce brake fade by allowing gases and debris to escape, while the vented rotor design improves airflow to maintain optimal operating temperatures. The zinc silver hat finish and rust-resistant coating contribute to durability and corrosion resistance, making it suitable for BMW 7 Series vehicles including the 745i, 745Li, 760i, and 760Li.

Product Description and Specifications

This disc brake rotor is specifically manufactured to meet the requirements of BMW 7 Series models such as the 745i, 745Li, 760i, and 760Li. The rotor’s 345 mm outside diameter and 67 mm overall height ensure proper fitment and compatibility. The 5-bolt pattern with a 120 mm bolt circle diameter and 16.9 mm bolt hole diameter matches factory specifications for secure mounting. The rotor thickness starts at 24 mm nominal and should be discarded at 22.4 mm to maintain braking efficiency and safety. The directional slotted and drilled surface improves braking response and helps maintain clean pad contact.

Common Applications and Problem Solving

• Reduces brake fade during high-performance or heavy braking conditions
• Improves heat dissipation to prevent rotor warping
• Helps maintain consistent braking performance in wet or dusty environments
• Minimizes rust and corrosion with zinc silver hat finish and rust-resistant coating
• Restores proper braking function on BMW 745i, 745Li, 760i, and 760Li models

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation. Verify bolt hole alignment with the 5-lug pattern and torque bolts to manufacturer specifications. Inspect brake pads and calipers for wear or damage during installation. It is recommended to replace rotors in pairs to maintain balanced braking performance.

Quality Assurance and Warranty

Dynamite Friction rotors are manufactured to meet OEM standards for fit, form, and function. The rust-resistant coating and zinc silver hat finish provide extended service life. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry quality controls to ensure reliability and safety for BMW 7 Series vehicles.