Dynamic Friction 4004-31089 DFC GeoSpec Coated Plain Brake Rotor Set

The Dynamic Friction 4004-31089 is a DFC GeoSpec Coated Plain (smooth) brake rotor set, engineered to deliver reliable, quiet, and corrosion-resistant braking performance as a direct OEM replacement. The GeoSpec coating forms a durable silver-gray finish that provides superior rust protection compared to conventional paint or zinc coatings, keeping rotors protected before, during, and after installation.

Key Features:

• GeoSpec® Fully Coated: All rotors are coated inside and out with a patented corrosion-resistant coating proven to outlast conventional paint or zinc treatments
• Ready to Install: Processed dry and shipped dry — no pre-degreasing or cleaning required right out of the box, saving time and money during installation
• Premium G3000/G11H18 Cast Iron: Engineered with premium iron castings for maximum strength, stability, and long-term durability
• OE Vane Configuration: Original Equipment vane geometry ensures proper and maximum heat dissipation for consistent braking performance
• CNC-Machined to Tight Tolerances: 100% precision cut and mill-balanced for smoother stopping and zero vibration at any speed
• Non-Directional Finish: Promotes faster brake pad bed-in and quieter, smoother stops
• 100% Inspected: Every rotor passes a full inspection station verifying all critical attributes meet OE specifications before shipment
• Plain / Smooth Rotor Style: Ideal for everyday street driving, normal commuting, and light performance use
• Backed by a 12,000-mile or 12-month limited warranty

The DFC GeoSpec program offers broad vehicle coverage across domestic and foreign passenger cars and light trucks. These rotors are designed to meet the same form, fit, and function as original equipment brake rotors, making installation straightforward with no modifications required.