Dynamic Friction 9004-31064 GEOMET Coated Drilled Disc Brake Rotor 4-Wheel Set

Built using DFC's premium Hi-Carbon Alloy iron formulations, these rotors deliver improved noise dampening, higher thermal conductivity, and greater durability compared to standard cast iron rotors.

Each rotor is machined at DFC's state-of-the-art facility to the tightest tolerances available, then passes a 100% electronic inspection station measuring over 20 critical attributes to ensure full OE specification compliance. A non-directional fine-turned finish (1.6 RMS) promotes faster, more even brake pad bed-in for quieter and smoother stops right out of the box.

Key Features:

• GEOMET® Corrosion Protection — Applied to the entire rotor surface, providing superior protection versus conventional zinc or paint coatings; withstands 400+ hours of salt spray testing per SAE J2334 and GMW 14872 standards
• Cross-Drilled Holes — Reduce heat buildup on the rotor surface; chamfered drill holes minimize the potential for stress cracking
• Hi-Carbon Alloy Iron Construction — Premium G3000/G11H18 iron castings with Molybdenum, Chromium, and Carbon formulations for strength, stability, and enhanced noise dampening
• OE Vane Configuration — Maintains original equipment airflow design for maximum and proper heat dissipation
• 100% Precision Mill-Balanced — Eliminates vibration and pedal pulsation at any speed
• Disc Thickness Variation (DTV) — .010mm maximum tolerance
• Lateral Runout — .050mm maximum tolerance
• Ready to Install — GEOMET® coating requires no degreasing or additional preparation before installation
• 4-Wheel Set — Includes all four rotors (front and rear) for a complete axle-to-axle brake rotor replacement

Backed by Dynamic Friction Company's 12-month / 12,000-mile limited warranty, the 9004-31064 is an ideal OE replacement or street performance upgrade for drivers seeking improved braking confidence, reduced brake noise, and outstanding corrosion resistance in all weather conditions.