Dynamite Friction 631-03021R Disc Brake Rotor - Rear Right

Overview of the DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-03021R) is engineered for reliable braking performance on select Hyundai and Kia vehicles. Designed with a directional, slotted, and drilled surface, this rotor enhances heat dissipation and braking consistency for models like the Hyundai Sonata and Kia Optima.

• Disc type: Solid disc brake rotor with drilled and slotted surface
• Nominal thickness: 10 mm with discard thickness at 8.4 mm
• Rust-resistant zinc silver hat finish for durability
• Directional brake surface optimized for heat and debris management
• 5 bolt holes with a bolt circle diameter of 114.3 mm
• Overall diameter: 283 mm, center hole diameter: 76 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver is a solid rotor designed to fit specific Hyundai and Kia models including the Azera, Cadenza, Optima, and Sonata. The rotor features a plain disc finish combined with a zinc silver coated hat to resist corrosion and extend service life. Its drilled and slotted surface improves brake pad bite and helps evacuate gases, dust, and water, which can accumulate during braking. The directional design ensures optimal performance when installed correctly, enhancing braking efficiency under various driving conditions.

About the DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots to improve heat dissipation and maintain consistent braking performance. This product line is engineered to provide enhanced stopping power and durability for vehicles requiring solid rotors with corrosion-resistant finishes. The zinc silver hat finish and rust-resistant coating contribute to longer rotor life, making it suitable for daily driving and moderate performance needs.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Hyundai Sonata and Kia Optima
• Improves braking response in wet or dusty conditions
• Reduces brake fade caused by heat buildup during extended braking
• Addresses rotor corrosion issues with rust-resistant coating
• Compatible upgrade for vehicles experiencing uneven brake pad wear

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction for optimal performance. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt pattern and 114.3 mm bolt circle diameter. Measure rotor thickness before installation to confirm it meets or exceeds the discard thickness of 8.4 mm. Proper torque specifications should be followed to avoid rotor warping or uneven wear.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fitment and performance on Hyundai and Kia vehicles. The rust-resistant coating and zinc silver hat finish provide added protection against corrosion. While specific warranty details are not provided here, Dynamite Friction products typically come with a limited warranty covering defects in materials and workmanship.