Dynamite Friction 604-31068 Disc Brake Rotor - Rear

Overview of Dynamite Friction DFC GEOSPEC Coated Rotor 604-31068

The Dynamite Friction DFC GEOSPEC Coated Rotor 604-31068 is engineered for BMW 323i, 325i, and 328i models. This vented disc brake rotor offers precise dimensions and coating technology designed to maintain braking performance and rotor longevity.

• Nominal thickness: 20 mm
• Discard thickness: 18.4 mm
• Outside diameter: 300 mm
• Inside diameter: 75 mm
• Bolt hole diameter: 14.7 mm
• Bolt hole quantity: 5
• Height: 66.2 mm
• Vented rotor design for heat dissipation

Detailed Product Description

This disc brake rotor, part number 604-31068, is specifically designed for BMW 3 Series models including the 323i, 325i, and 328i. The rotor features a vented design that improves heat dissipation during braking, reducing the risk of brake fade under demanding conditions. With an outside diameter of 300 mm and a height of 66.2 mm, it fits precisely within the brake assembly of these BMW models. The nominal thickness of 20 mm ensures structural integrity, while the discard thickness of 18.4 mm indicates the minimum safe thickness before replacement is necessary. The rotor includes five bolt holes with a diameter of 14.7 mm, matching the factory specifications for secure mounting.

About the DFC GEOSPEC Coated Rotor Line

The DFC GEOSPEC Coated Rotor line by Dynamite Friction incorporates a specialized coating designed to protect the rotor surface from corrosion and environmental wear. This coating helps maintain rotor performance and appearance over time, which is particularly beneficial for vehicles like the BMW 323i, 325i, and 328i that may be exposed to varying driving conditions. The coating also aids in reducing brake dust accumulation, contributing to cleaner wheel assemblies.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 323i, 325i, and 328i
• Improves braking consistency by reducing heat-related fade
• Addresses rotor corrosion and surface degradation
• Restores proper rotor thickness for safe braking performance
• Ensures secure fitment with correct bolt hole pattern and dimensions

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below 18.4 mm discard thickness
• Ensure proper cleaning of hub surface to prevent rotor runout
• Torque bolts to manufacturer specifications for secure mounting
• Inspect brake pads for wear and replace if necessary during rotor installation
• Perform a bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

Dynamite Friction rotors, including the 604-31068, are manufactured to meet OEM specifications for fit and function. The DFC GEOSPEC Coated Rotor line undergoes quality control processes to ensure durability and consistent performance. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.