Dynamite Friction 631-31048R Disc Brake Rotor - Front Right

Overview of the DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31048R) is engineered for BMW models including the 330Ci, 330i, 330xi, and Z4. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with BMW 330Ci, 330i, 330xi, and Z4 models
• Part number: 631-31048R
• Vented disc brake rotor with directional drilled and slotted surface
• Nominal thickness of 25 mm and discard thickness of 23.4 mm
• Rust-resistant zinc silver hat finish with plain disc finish
• Five bolt holes with 14.6 mm diameter and 120 mm bolt circle diameter
• Overall height and rotor height of 52.7 mm
• Outside diameter of 325 mm for optimal fitment

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 reliable braking components with enhanced heat management. This rotor is vented to improve airflow and reduce heat buildup during braking, which helps maintain consistent performance under demanding conditions. The directional drilled and slotted surface aids in debris removal and water dispersion, improving brake pad contact and reducing fade.

With a nominal thickness of 25 mm and a discard thickness of 23.4 mm, this rotor meets precise wear limits to ensure safety and longevity. The zinc silver coating on the hat provides corrosion resistance, extending the rotor's service life. The rotor's five bolt holes and 120 mm bolt circle diameter match the factory specifications for the listed BMW models, ensuring proper fitment and installation.

Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 330Ci, 330i, 330xi, and Z4
• Improves braking performance by reducing heat and brake fade
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Resists rust and corrosion for longer service life in various driving conditions
• Enhances wet weather braking with drilled and slotted design for water dispersion

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (23.4 mm) before installation
• Use proper torque specifications for the 5 lug bolts with 14.6 mm diameter
• Clean rotor surface before mounting to remove any protective coatings or debris
• Check compatibility with OEM brake pads designed for vented rotors
• Inspect wheel hub and bearings for wear during rotor replacement

Quality Assurance and Warranty

Dynamite Friction's DFC Brake Rotor line is manufactured to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating and precise machining ensure durability and consistent braking performance. While specific warranty details are not provided, Dynamite Friction products typically come with a limited warranty against manufacturing defects. Always verify warranty terms with the supplier or manufacturer.