Dynamite Friction 604-21049 Disc Brake Rotor - Rear

Overview of Dynamite Friction DFC GEOSPEC Coated Rotor 604-21049

The Dynamite Friction DFC GEOSPEC Coated Rotor 604-21049 is engineered for reliable braking performance on Hyundai K5 and Kia Sonata models. Designed with corrosion resistance and precise dimensions, this disc brake rotor supports consistent stopping power and durability.

• Nominal thickness: 12 mm with discard thickness at 10 mm
• Outside diameter: 325 mm for optimal fitment
• 5 bolt holes with 12.6 mm diameter and 114.3 mm bolt circle diameter
• Geospec silver grey coated hat finish with rust resistant coating
• Plain disc finish with smooth braking surface
• Center hole diameter: 76 mm
• Height: 32.35 mm
• Non-directional brake surface for versatile installation

DFC GEOSPEC Coated Rotor Product Line Details

The DFC GEOSPEC Coated Rotor line by Dynamite Friction features rotors with a specialized silver grey coating on the hat area to reduce corrosion and extend rotor life. This coating, combined with a rust resistant finish on the braking surface, helps maintain rotor integrity under various driving conditions. The 604-21049 rotor benefits from this technology, providing a balance of durability and consistent braking performance for compatible Hyundai and Kia vehicles.

Technical Description and Specifications

This disc brake rotor is designed with a nominal thickness of 12 mm and a discard thickness of 10 mm, ensuring clear service limits for safety and maintenance. The rotor’s 325 mm outside diameter and 32.35 mm height are engineered to match the braking system requirements of Hyundai K5 and Kia Sonata models. Featuring a plain disc finish and smooth surface type, the rotor promotes even pad wear and effective heat dissipation. The 5-bolt hole configuration with a 114.3 mm bolt circle diameter and 12.6 mm bolt hole diameter ensures precise fitment and secure mounting. The non-directional brake surface allows for flexible installation without concern for rotor orientation.

Applications and Problem Solving

• Replacement rotor for worn or warped rotors on Hyundai K5 and Kia Sonata
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Helps restore braking efficiency and pedal feel
• Prevents rust and corrosion buildup that can reduce rotor lifespan
• Suitable for routine maintenance or brake system upgrades

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 10 mm before installation. Clean the rotor surface to remove any protective coatings or contaminants prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt pattern and 114.3 mm bolt circle diameter. Use proper torque specifications for lug nuts to avoid rotor warping. The non-directional surface allows installation on either side without affecting performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC GEOSPEC Coated Rotor 604-21049 to meet industry standards for durability and performance. The rust resistant coating and precise machining contribute to consistent braking and extended rotor life. Warranty details should be confirmed with the original equipment provider or distributor.