Dynamic Friction 4804-73039 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company (DFC) 4804-73039 is a GeoSpec fully coated plain disc brake rotor engineered as a direct OEM-quality replacement. GeoSpec rotors are completely coated inside and out using a patented corrosion-resistant paint that forms a durable, attractive silver-gray finish — offering superior rust protection compared to conventional zinc or paint coatings.

Key Features:

• Full-Coverage Coating: Patented paint coating applied to all surfaces — inside, outside, and vanes — for maximum corrosion resistance before and after installation
• Ready to Install: No cleaning or prep required; the coating does not contaminate friction or rotor surfaces, ensuring proper brake bed-in and wear characteristics
• Premium G3000 Iron Casting: Engineered with premium G3000 gray iron castings that duplicate precise OEM vane configurations for proper fit and thermal performance
• CNC-Machined to Tight Tolerances: Precision machining ensures accurate rotor thickness and runout for smooth, vibration-free braking
• 100% Mill-Balanced: Precision mill-balanced for smoother stops and zero vibration at any speed
• Non-Directional Finish: Promotes faster break-in and smoother, quieter stops
• Direct OEM Replacement: Designed to match original equipment specifications with no modifications required

The DFC GeoSpec plain rotor is ideal for drivers seeking a long-lasting, corrosion-resistant upgrade over standard replacement rotors. Sold individually, this rotor is part of DFC's industry-leading GeoSpec program — one of the most complete coated rotor programs available, covering more than 1,400 SKUs for foreign and domestic passenger cars and light trucks.