Raybestos 580503 Disc Brake Rotor - Front

Overview of Raybestos 580503 Disc Brake Rotor

The Raybestos Specialty - Street Performance disc brake rotor 580503 is engineered for reliable braking performance on Chevrolet Cobalt and Pontiac G5 models. Designed as a vented rotor with precise dimensions, it supports consistent heat dissipation and durability for street driving conditions.

• Vented disc brake rotor for improved cooling
• Overall diameter of 11.024 inches (280 mm)
• Nominal thickness of 0.945 inches (24 mm) with discard thickness at 0.906 inches (23 mm)
• Five mounting bolt holes with a 4.331 inch (110 mm) bolt circle diameter
• Center hole diameter of 2.587 inches (65.7 mm)
• Conventional rotor type compatible with Chevrolet Cobalt and Pontiac G5

Detailed Product Description

This Raybestos disc brake rotor, part number 580503, is part of the Specialty - Street Performance line, which focuses on delivering dependable braking components tailored for street performance applications. The vented design enhances airflow to reduce heat buildup during braking, helping maintain consistent stopping power. With an overall height of 1.843 inches (46.8 mm), this rotor fits the specified Chevrolet and Pontiac models precisely. The rotor features five mounting bolt holes arranged on a 110 mm bolt circle diameter, ensuring secure installation. The nominal thickness of 0.945 inches (24 mm) and discard thickness of 0.906 inches (23 mm) provide clear service limits for maintenance and replacement.

Compatible Vehicles and Applications

• Chevrolet Cobalt disc brake replacement
• Pontiac G5 brake rotor upgrade
• Addressing rotor wear and thickness below discard limits
• Improving brake cooling and reducing fade on street-driven vehicles
• Replacing warped or damaged rotors for consistent braking

Installation Notes and Tips

Ensure the rotor mounting surface and hub are clean and free of debris before installation. Verify the rotor thickness is within specifications before mounting. Use proper torque settings on the five mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to optimize braking performance. Check for any signs of uneven wear or damage during installation.

Quality Assurance and Warranty

Raybestos Specialty - Street Performance rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The 580503 rotor undergoes rigorous quality control to ensure durability and consistent performance. Warranty coverage details should be confirmed with the product documentation or manufacturer.