Dynamic Friction 4822-31039 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company (DFC) 4822-31039 is a GeoSpec Coated Plain Disc Brake Rotor engineered as a direct OE replacement. Featuring DFC's proprietary GeoSpec coating technology, this rotor delivers a durable, attractive silver-gray finish that provides superior rust and corrosion resistance compared to conventional paint or zinc coatings.

Key Features:

• GeoSpec Full-Coverage Coating: Completely coated inside and out with a patented rust-prevention finish — fights corrosion far better than conventional paint or zinc coatings
• Premium G3000/G11H18 Iron Casting: Engineered with high-grade iron castings for superior strength, stability, and long-term durability
• OE Vane Configuration: Original Equipment vane design ensures proper and maximum heat dissipation for consistent braking performance
• CNC-Machined to Tight Tolerances: Precision machining ensures proper fit and optimal braking contact
• 100% Mill-Balanced: Every vented rotor is electronically mill-balanced for smooth, vibration-free stops at any speed
• Non-Directional Finish: Promotes faster, more even brake pad bed-in and quieter, smoother stops
• Ready to Install: Processed dry and shipped dry — no pre-installation degreasing or cleaning required, saving time and labor
• Meets OE Specifications: Each rotor passes a 100% inspection station verifying all critical attributes before shipment
• Plain / Smooth Surface Style: Smooth rotor face for quiet, everyday street driving and OE-style braking feel

The DFC GeoSpec coating is designed not to contaminate friction surfaces, ensuring proper brake pad bed-in and consistent wear characteristics. This rotor is part of DFC's industry-leading GeoSpec program — one of the most complete coated rotor programs available, covering over 1,400 SKUs for foreign and domestic passenger cars and light trucks.