Dynamic Friction 4002-31040 GeoSpec Coated Rear Disc Brake Rotor

The Dynamic Friction Company (DFC) 4002-31040 GeoSpec Coated Rear Brake Rotor is a direct-fit OEM-quality replacement rotor engineered for reliable, consistent stopping power. Built to meet or exceed original equipment specifications, this rotor is ideal for everyday drivers seeking a dependable, long-lasting brake upgrade.

Key Features:

• GeoSpec Patented Coating: Specially formulated silver-gray corrosion-resistant coating fights rust far more effectively than conventional paint or zinc coatings, keeping the rotor looking and performing its best
• Ready to Install: Processed dry and shipped dry — no cleaning or additional preparation required before installation
• Non-Directional Surface Finish: Each rotor features a precision non-directional finish that promotes faster, more even brake pad bed-in for quieter and smoother stops
• Premium Iron Casting: Cast from G3000/G11H18 grade iron for superior strength, thermal stability, and long service life
• Mill-Balanced Design: Precision mill-balanced construction minimizes vibration and eliminates brake pedal pulsation
• OEM Direct Fitment: Engineered to OEM specifications for a no-modification, bolt-on installation
• 1-Year Warranty: Backed by a manufacturer's limited warranty against defects

The GeoSpec coating is safely swept away by the brake pad friction material during normal break-in with no harmful effects, saving valuable installation time compared to oil-coated rotors. DFC rotors are processed at state-of-the-art machining facilities to the tightest tolerances available, ensuring consistent performance and a precise fit.