Dynamite Friction 633-31047R Disc Brake Rotor - Rear Right

Overview of DFC Brake Rotor - Drilled and Slotted - Black

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31047R) is engineered for BMW 323i, 325Ci, 325i, 328Ci, and 328i models. Designed to enhance braking performance, this vented disc brake rotor features a directional, slotted, and drilled surface for improved heat dissipation and consistent stopping power.

• Compatible with BMW 323i, 325Ci, 325i, 328Ci, and 328i
• Directional slotted and drilled surface for heat and gas dissipation
• Vented rotor design with 294 mm outside diameter
• Zinc black hat finish with rust-resistant coating
• Nominal thickness of 19 mm and discard thickness of 17.4 mm
• 5 bolt holes with 14.6 mm diameter and 120 mm bolt circle diameter
• Center hole diameter of 75 mm for precise fitment

Detailed Product Features and Specifications

This Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black is a vented disc brake rotor measuring 294 mm in outside diameter and 59.7 mm in overall height. The rotor’s surface is both drilled and slotted, which helps to reduce brake fade by allowing heat and gases to escape more efficiently during braking. The directional design ensures optimal performance when installed correctly. The rotor’s hat features a zinc black finish that provides corrosion resistance, complemented by an overall rust-resistant coating to extend service life.

The rotor thickness is specified with a nominal thickness of 19 mm and a discard thickness of 17.4 mm, ensuring clear maintenance guidelines. It includes five bolt holes with a diameter of 14.6 mm and a bolt circle diameter of 120 mm, matching the stud/lug hole pattern for secure mounting on compatible BMW models. The center hole diameter of 75 mm ensures proper alignment on the hub.

About the DFC Brake Rotor - Drilled and Slotted - Black Product Line

The DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction focuses on rotors that combine drilled holes and slots with a corrosion-resistant black zinc finish on the hat. This product line is designed to provide enhanced braking performance through improved heat dissipation and gas evacuation, while also offering durability against rust and corrosion. These rotors are vented to maintain cooler operating temperatures under demanding conditions.

Common Applications and Problem Solving

• Reduces brake fade during aggressive or repeated braking
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust buildup and glazing on pads
• Prevents rust and corrosion on rotor hats and surfaces
• Ensures consistent braking performance for BMW 323i, 325Ci, 325i, 328Ci, and 328i models

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation. Verify that the bolt hole pattern and center hole diameter match the hub specifications. It is recommended to inspect the brake pads and hardware during installation and replace if necessary to maintain optimal braking performance. Follow manufacturer torque specifications for mounting bolts.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Black to meet or exceed OEM standards for fit, form, and function. The rotor includes a rust-resistant coating and zinc black hat finish to enhance durability. Warranty details are provided by Dynamite Friction and should be confirmed at the time of purchase.