Dynamite Friction 633-31029L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor 633-31029L

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31029L) is engineered for BMW models including the 540i, 740i, 740iL, 850Ci, and 850i. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Nominal thickness: 30 mm with a discard thickness of 28.4 mm
• Vented rotor design for improved cooling
• Directional drilled and slotted surface for consistent brake pad contact
• Zinc black hat finish with rust-resistant coating
• Overall height: 77.1 mm; outside diameter: 324 mm
• Five bolt holes with 15 mm diameter and 120 mm bolt circle diameter
• Center hole diameter: 79 mm

Detailed Product Features and Specifications

The DFC Brake Rotor - Drilled and Slotted - Black from Dynamite Friction is designed to meet the specific braking requirements of select BMW vehicles. The rotor’s vented construction allows for efficient heat dissipation, reducing the risk of brake fade during demanding driving conditions. The directional surface pattern, combining drilled holes and slots, helps evacuate gases, dust, and water from the braking surface, maintaining consistent friction and improving stopping power.

The rotor’s nominal thickness of 30 mm ensures durability, while the discard thickness of 28.4 mm indicates the minimum safe thickness for replacement. The zinc black hat finish provides corrosion resistance, extending the rotor’s service life. With five bolt holes sized at 15 mm diameter and a bolt circle diameter of 120 mm, this rotor is engineered for precise fitment on compatible BMW models.

Compatible BMW Models and Applications

• BMW 540i
• BMW 740i and 740iL
• BMW 850Ci and 850i

This rotor is suitable for drivers seeking a reliable replacement part that maintains factory specifications and performance characteristics for these BMW models.

Installation Notes and Tips

• Ensure the rotor thickness is above the discard thickness of 28.4 mm before installation
• Clean the rotor surface to remove any protective coating before mounting
• Verify bolt hole alignment with the vehicle’s hub using the 120 mm bolt circle diameter
• Use proper torque specifications for the 5 lug bolts with 15 mm diameter
• Inspect brake pads and calipers for wear during rotor replacement

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Black to meet industry standards for durability and performance. The rotor includes a rust-resistant coating to protect against corrosion. Please refer to Dynamite Friction’s warranty policy for specific coverage details related to this part number 633-31029L.