Dynamite Friction 633-31109R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31109R) is engineered for BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3. Designed to provide reliable braking performance, this vented disc brake rotor features a directional, slotted and drilled surface to enhance heat dissipation and maintain consistent stopping power.

• Compatible with multiple BMW models such as 328i xDrive, 335i GT xDrive, 430i Gran Coupe, and more
• Directional slotted and drilled surface for improved brake pad bite and heat management
• Vented rotor design with 330 mm outside diameter for efficient cooling
• Zinc black hat finish with rust-resistant coating for corrosion protection
• Nominal thickness of 20 mm and discard thickness of 18.4 mm for durability and safety
• 5 bolt holes with 16.8 mm diameter and 120 mm bolt circle diameter for precise fitment

Detailed Product Features and Specifications

This Dynamite Friction rotor is a vented disc brake rotor with a 330 mm outside diameter and an overall height of 66.4 mm, designed to fit a 75 mm center hole diameter hub. The rotor surface is both drilled and slotted, which helps to reduce brake fade by allowing gases and debris to escape while improving pad bite. The directional brake surface ensures optimal performance when installed correctly. The rotor’s hat is finished in zinc black, providing a rust-resistant coating that extends the rotor’s lifespan in various driving conditions. With a nominal thickness of 20 mm and a discard thickness of 18.4 mm, this rotor maintains structural integrity under demanding braking scenarios. The 5-lug bolt pattern with 16.8 mm diameter holes and a 120 mm bolt circle diameter matches the factory specifications for the listed BMW models.

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 enhanced cooling features with corrosion resistance. This product line is designed to meet the demands of performance-oriented vehicles like BMWs, offering drilled and slotted surfaces for improved heat dissipation and braking consistency. The black zinc finish on the rotor hat adds an extra layer of protection against rust, making these rotors suitable for both daily driving and spirited use.

Applications and Problem Solving

• Reduces brake fade during aggressive or extended braking
• Improves braking response and pad bite with slotted and drilled design
• Prevents rust and corrosion on rotor hats for longer service life
• Maintains structural integrity with vented design for heat dissipation
• Ensures proper fitment on BMW 3 Series, 4 Series, and ActiveHybrid 3 models

Installation Notes and Tips

• Ensure rotor orientation matches the directional surface for optimal performance
• Check rotor thickness before installation; replace if below discard thickness of 18.4 mm
• Use proper torque specifications for the 5-lug bolt pattern (120 mm bolt circle diameter)
• Inspect brake pads and hardware during rotor replacement for best results

Quality Assurance and Warranty

Dynamite Friction manufactures the 633-31109R rotor to meet OEM specifications for fit and function on compatible BMW models. The rust-resistant zinc black finish and vented rotor design contribute to durability and consistent braking performance. Warranty details are provided by Dynamite Friction and should be confirmed at the time of purchase.