Dynamite Friction 631-47037L Disc Brake Rotor - Front Left

Reliable Brake Performance for Chevrolet Cobalt and HHR

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-47037L) is engineered to provide consistent braking performance for Chevrolet Cobalt and HHR models. Designed with precision, this vented disc brake rotor offers enhanced heat dissipation and improved stopping power under various driving conditions.

• Disc type: Vented, drilled, and slotted for optimal heat management
• Nominal thickness: 25.7 mm with a discard thickness of 24 mm
• Overall diameter: 315.5 mm with a height of 42.8 mm
• Directional brake surface for improved water and debris evacuation
• Rust-resistant zinc silver hat finish with plain disc surface
• 5 bolt holes with 14.3 mm diameter and 110 mm bolt circle diameter
• Center hole diameter: 65.6 mm for precise fitment

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors that combine drilled and slotted surface technology with corrosion-resistant coatings. This product line is designed to enhance braking efficiency and rotor longevity, making it suitable for vehicles like the Chevrolet Cobalt and HHR that require reliable and durable braking components.

Technical Details and Specifications

This disc brake rotor features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade. The drilled and slotted surface improves water and gas evacuation, maintaining consistent contact between the brake pad and rotor. The rotor’s directional surface ensures proper alignment for optimal performance. With a nominal thickness of 25.7 mm and a discard thickness of 24 mm, this rotor meets precise wear limits for safety and reliability. The zinc silver coating on the hat area provides rust resistance, extending the rotor’s service life.

Applications and Problem Solving

• Compatible with Chevrolet Cobalt and HHR models requiring vented disc brake rotors
• Addresses brake fade caused by excessive heat buildup
• Improves braking performance in wet conditions through directional drilled and slotted design
• Reduces rotor surface corrosion with rust-resistant coating
• Maintains structural integrity with precise thickness specifications

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing outward to maximize water and debris evacuation. Verify bolt hole alignment with the 5-lug, 110 mm bolt circle diameter pattern. Check rotor thickness before installation to confirm it meets or exceeds the discard thickness of 24 mm. Proper torque specifications should be followed to avoid warping or uneven wear.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM standards for fit and function. The rust-resistant zinc silver coating helps protect against corrosion, contributing to longer rotor life. While no specific warranty information is provided, the rotor’s design and materials support reliable braking performance for Chevrolet Cobalt and HHR vehicles.