Dynamite Friction 631-31095L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31095L) is engineered for precision braking performance on select BMW models. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for vehicles like the BMW 550i GT and 750Li xDrive.

• Nominal thickness: 23.8 mm with a discard thickness of 22.4 mm
• Vented disc type with drilled and slotted surface for improved cooling
• Directional brake surface optimized for performance and wear
• Rust-resistant zinc silver hat finish and plain disc finish
• Five bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 370 mm and height of 69 mm
• Center hole diameter of 75 mm for precise fitment

Detailed Product Description

This Dynamite Friction disc brake rotor is specifically designed for BMW vehicles including the 550i GT, 550i GT xDrive, 750i, 750i xDrive, 750Li, 750Li xDrive, and 760Li. The rotor features a vented design that helps reduce heat buildup during braking, which is critical for maintaining consistent stopping power and reducing brake fade. The drilled and slotted surface improves water and debris evacuation, enhancing braking performance in various driving conditions. The directional surface pattern ensures optimal contact with brake pads, promoting even wear and reliable braking response.

The rotor’s zinc silver hat finish provides corrosion resistance, extending the rotor’s service life, while the plain disc finish maintains a smooth braking surface. With a bolt hole quantity of five and a bolt circle diameter of 120 mm, this rotor matches the factory specifications for the listed BMW models. The part number 631-31095L ensures compatibility and quality assurance for your vehicle’s braking system.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve heat dissipation and brake pad cleaning. This product line is designed to meet the demands of performance-oriented vehicles, providing enhanced braking efficiency and durability. The silver zinc coating on the rotor hat offers rust resistance, making it suitable for long-term use in various environments.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves braking performance in wet or debris-prone conditions
• Minimizes uneven pad wear and rotor scoring
• Prevents rust and corrosion on rotor hats for extended durability
• Restores factory-level braking response on compatible BMW models

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness of 22.4 mm before installation
• Verify bolt hole alignment with 5-lug, 120 mm bolt circle diameter
• Clean rotor surface before installation to remove any protective coatings
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with BMW 550i GT, 750Li, and related xDrive models

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet OEM specifications for fit and function. The rust-resistant coating and vented design contribute to long-term reliability. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry standards for quality and durability, ensuring dependable braking performance for your BMW 550i GT and 750Li xDrive vehicles.