Dynamic Friction 4004-31082 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction 4004-31082 is a GeoSpec® Coated Plain (Smooth) Disc Brake Rotor from Dynamic Friction Company (DFC). Engineered as a direct OEM replacement, this rotor features DFC's patented GeoSpec® corrosion-resistant coating that forms a durable, attractive silver-gray finish — fighting rust far more effectively than conventional paint or zinc coatings.

Each rotor is CNC-machined in DFC's state-of-the-art manufacturing facilities to the tightest tolerances available, then finished with a non-directional surface to promote faster, more even brake pad bed-in for quieter and smoother stops. All vented rotors are 100% electronically mill-balanced and pass a full inspection station measuring over 20 critical attributes to ensure every rotor meets OE specifications.

Key Features:

• GeoSpec® Patented Coating — Fully coated inside and out with superior corrosion protection over conventional paint or zinc coatings
• Premium G3000/G11H18 Iron Casting — Engineered for maximum strength, stability, and long-term durability
• OE Vane Configuration — Matches original equipment vane design for proper and maximum heat dissipation
• CNC-Machined to Tight Tolerances — Ensures precise fitment and consistent braking performance
• 100% Mill-Balanced — Precision cut and electronically balanced for smooth, vibration-free stopping at any speed
• Non-Directional Finish — Promotes faster break-in and quieter, smoother stops
• Ready to Install — Processed dry, shipped dry; no pre-degreasing or additional preparation required
• Direct OEM Replacement — Designed to meet the same form, fit, and function as factory brake rotors with no modifications required
• 1-Year Manufacturer Warranty against defects

The DFC GeoSpec® rotor program is one of the industry's most complete coated rotor lines, covering a wide range of domestic and foreign passenger cars and light trucks. The GeoSpec coating is specifically designed not to contaminate friction or rotor surfaces, ensuring proper braking bed-in and wear characteristics right from installation.