Dynamite Friction 900-31117 Disc Brake Rotor - Rear

Overview of Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor

The Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor (part number 900-31117) is engineered for reliable braking performance on select BMW models. Designed as a vented disc brake rotor, it offers enhanced heat dissipation and durability for vehicles such as the BMW 320i xDrive and 330i xDrive.

• Nominal thickness: 20 mm
• Discard thickness: 18.4 mm
• Outside diameter: 300 mm
• Inside diameter: 75.05 mm
• Bolt hole diameter: 16.8 mm
• Bolt hole quantity: 5
• Height: 66.3 mm
• Vented rotor design for improved cooling

Detailed Product Features and Specifications

This disc brake rotor is part of the DFC Hi-Carbon Alloy GEOMET Coated Rotor line by Dynamite Friction, which focuses on combining high-carbon alloy materials with a GEOMET coating to reduce corrosion and extend rotor life. The vented design improves heat dissipation during braking, helping to maintain consistent performance under demanding conditions. With a nominal thickness of 20 mm and a discard thickness of 18.4 mm, this rotor provides a balance between durability and serviceability. The rotor’s 300 mm outside diameter and 75.05 mm inside diameter are matched to specific BMW models, ensuring proper fit and function.

Compatible BMW Models and Applications

This rotor is compatible with a range of BMW vehicles, including but not limited to the 320i xDrive, 325xi, 328d xDrive, 328i, 328i GT xDrive, 328i xDrive, 328xi, 330e, 330i, 330i GT xDrive, 330i xDrive, 420i, 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe, 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe, and X1 models. The part number 900-31117 ensures precise fitment for these vehicles.

• Reduces brake fade caused by overheating
• Restores smooth braking performance
• Addresses rotor wear and thickness below discard limits
• Improves heat dissipation with vented design
• Minimizes corrosion with GEOMET coating

Installation Notes and Tips

When installing the Dynamite Friction 900-31117 rotor, ensure the rotor surface is clean and free of contaminants before mounting. Verify that the bolt hole pattern with five holes and 16.8 mm diameter matches the vehicle hub. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Proper torque specifications should be followed to avoid rotor warping.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet OEM standards for fit and function. The GEOMET coating provides corrosion resistance to extend rotor life. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry quality controls to ensure reliability and safety.