Dynamic Friction 4004-31097 GeoSpec Coated Drilled Brake Rotor Set

Built from premium G3000/G11H18 cast iron, these rotors deliver reliable, consistent braking performance for normal commuting, performance street driving, and even towing applications.

Each rotor features DFC's signature GeoSpec patented paint coating, which forms a durable, attractive silver-gray finish that outperforms conventional paint and zinc coatings in corrosion resistance. The coating is processed dry and shipped dry, so rotors are ready to install straight out of the box with no pre-degreasing or additional preparation required.

Key Features:

• Cross-drilled holes reduce heat buildup during braking; chamfered edges minimize cracking risk
• GeoSpec patented corrosion-resistant coating provides superior rust protection over conventional paint or zinc finishes
• CNC-machined to the tightest tolerances for precise fit and zero vibration at any speed
• Non-directional surface finish promotes faster, more even brake pad bed-in and quieter, smoother stops
• G3000/G11H18 cast iron construction for long-lasting strength and durability
• No pre-cleaning required — coating is safely swept away by friction material during normal break-in
• Suitable for normal commute, performance street, towing, and oversized tire applications

• 1x 624-31126D GeoSpec Coated Drilled Brake Rotor (sold as part of set)
• 1x 624-31127D GeoSpec Coated Drilled Brake Rotor (sold as part of set)
• 1x 624-31128D GeoSpec Coated Drilled Brake Rotor (sold as part of set)
• 1x 624-31129D GeoSpec Coated Drilled Brake Rotor (sold as part of set)

DFC rotors are engineered to last as long as or longer than the OEM discs they replace, making the 4004-31097 an excellent value for drivers seeking a complete front and rear brake rotor upgrade.