Dynamite Friction 830-47037R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-47037R) is engineered for Chevrolet Cobalt and HHR models. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with Chevrolet Cobalt and HHR vehicles
• Directional slotted and drilled surface for improved brake pad bite and cooling
• Vented rotor design to reduce heat buildup during braking
• Rust resistant coating for extended durability
• Plain disc finish with Geospec silver grey hat finish
• Nominal thickness of 25.7 mm and discard thickness of 24 mm
• Five bolt holes with 14.3 mm diameter and 110 mm bolt circle diameter
• Overall rotor diameter of 315.5 mm and height of 42.8 mm

Detailed Product Description

The 830-47037R rotor from Dynamite Friction is part of the DFC Geoperformance Rotor - Drilled and Slotted line, designed to meet the specific braking needs of Chevrolet Cobalt and HHR models. The rotor’s vented construction allows air to flow between the rotor faces, helping to dissipate heat and reduce brake fade during demanding driving conditions. The directional surface pattern combines drilled holes and slots to improve water and debris evacuation, enhancing braking consistency in wet or dusty environments.

With a nominal thickness of 25.7 mm and a discard thickness of 24 mm, this rotor maintains structural integrity and performance throughout its service life. The rust resistant coating protects the rotor from corrosion, extending its usable life, while the Geospec silver grey finish on the hat adds corrosion resistance and a clean appearance. The rotor’s five 14.3 mm bolt holes and 110 mm bolt circle diameter ensure precise fitment on compatible Chevrolet models.

Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves braking performance in wet or slippery conditions
• Minimizes rotor warping and cracking through vented design
• Prevents rust and corrosion for longer rotor life
• Restores proper braking response on Chevrolet Cobalt and HHR vehicles

Installation Notes and Tips

Ensure the rotor surface is clean and free of any protective coatings before installation. Verify the rotor thickness is above the discard thickness of 24 mm to maintain safety and performance. Use proper torque specifications for the five lug bolts with 14.3 mm diameter and 110 mm bolt circle diameter. It is recommended to replace brake pads when installing new rotors to ensure optimal braking efficiency.

Quality Assurance

Dynamite Friction’s DFC Geoperformance Rotor line is manufactured to meet or exceed OEM specifications for Chevrolet Cobalt and HHR models. The rust resistant coating and vented rotor design contribute to durability and consistent braking performance. Warranty information is available through the manufacturer and should be consulted for specific coverage details.