Dynamic Friction 4524-31039 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company (DFC) 4524-31039 GeoSpec Coated Plain Disc Brake Rotor is a premium OE-replacement brake rotor engineered for reliable, long-lasting stopping performance. GeoSpec coating provides a durable, attractive silver-gray finish that delivers superior rust and corrosion resistance compared to conventional paint or zinc coatings.

Each rotor is processed dry and shipped dry, meaning it arrives ready to install with no additional cleaning or pre-degreasing required — saving time and money during the brake job. The patented coating is safely swept away by the friction material during the bed-in process with no harmful effects on brake performance.

Key Features:

• Engineered with premium G3000/G11H18 iron castings for superior strength, stability, and durability
• GeoSpec patented coating provides superior corrosion protection over zinc plating and conventional paint
• OE vane configuration ensures proper and maximum heat dissipation
• CNC-machined to the tightest tolerances for precise OEM form, fit, and function
• Non-directional surface finish promotes a faster, more even brake pad bed-in and quieter, smoother stops
• 100% mill-balanced using electronic mill-balance process for zero vibration at any speed
• 100% inspected at a quality station measuring all critical OE specification attributes
• Ready to install — no modification required

The DFC GeoSpec program covers more than 1,400 SKUs across a wide range of foreign and domestic passenger car and light truck applications, making it one of the most complete coated rotor programs available in the aftermarket.