Dynamite Friction 631-31152R Disc Brake Rotor - Rear Right

Overview of DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31152R) is engineered for BMW X3 and X4 models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with BMW X3 and X4 models
• Directional slotted and drilled surface for improved brake response
• Vented rotor design for efficient heat dissipation
• Rust-resistant zinc silver hat finish
• Nominal thickness of 20 mm with discard thickness at 18.4 mm
• Five bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 330 mm and height of 71 mm

Detailed Product Features and Specifications

The DFC Brake Rotor - Drilled and Slotted - Silver is part of Dynamite Friction's DFC line, which focuses on delivering rotors with enhanced surface designs for improved braking efficiency. This rotor combines drilled holes and slots in a directional pattern to help evacuate gases, dust, and water from the braking surface, reducing brake fade and maintaining consistent stopping power. The vented rotor construction allows air to flow between the rotor faces, aiding in heat dissipation during heavy braking conditions.

With a nominal thickness of 20 mm and a discard thickness of 18.4 mm, this rotor meets precise wear limits to ensure safety and performance. The zinc silver coating on the rotor hat provides corrosion resistance, extending the rotor's service life. The rotor features five bolt holes with a diameter of 16.6 mm and a bolt circle diameter of 120 mm, matching the BMW X3 and X4 specifications. The overall diameter of 330 mm and height of 71 mm are designed to fit the specified vehicle models accurately.

Applications and Problem Solving

• Replaces worn or warped rotors on BMW X3 and X4 vehicles
• Addresses brake fade caused by excessive heat buildup
• Improves braking performance in wet or dusty conditions
• Reduces brake noise and vibration through slotted and drilled design
• Prevents rust and corrosion on rotor hats for longer durability

Installation Notes and Tips

Ensure the rotor surface is clean and free of any contaminants before installation. Verify that the rotor thickness is within the discard limits (minimum 18.4 mm) before mounting. Use proper torque specifications for the five lug bolts (16.6 mm diameter) to secure the rotor. It is recommended to inspect brake pads and replace them if worn to maintain optimal braking performance. Directional rotors must be installed following the indicated rotation direction for correct operation.

Quality Assurance and Warranty

Dynamite Friction's DFC Brake Rotor line is manufactured to meet OEM specifications for fitment and performance. The rust-resistant coating and vented design contribute to the rotor's durability and reliability. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry standards for quality and workmanship.