Raybestos 580450R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 580450R

The Raybestos R-Line Disc Brake Rotor 580450R is engineered for reliable braking performance on select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed as a vented, conventional rotor, it meets the specific requirements of models like the Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal.

• Vented disc brake rotor for improved heat dissipation
• Overall diameter of 11.235 inches (285.35 mm)
• Nominal thickness of 1.035 inches (26.3 mm) with discard thickness at 0.972 inches (24.7 mm)
• Overall height of 1.484 inches (37.7 mm)
• Five mounting bolt holes with a 115 mm (4.528 inch) bolt circle diameter
• Conventional rotor design compatible with drum-in-hat setups

Detailed Product Specifications

This Raybestos R-Line rotor, part number 580450R, features a vented design that enhances cooling during braking, reducing the risk of brake fade under demanding conditions. The rotor’s outside diameter measures 11.235 inches, suitable for the specified GM models. Its nominal thickness of 1.035 inches ensures durability and consistent braking performance, while the discard thickness of 0.972 inches indicates the minimum safe thickness before replacement is necessary. The rotor includes five mounting bolt holes arranged on a 115 mm bolt circle diameter, matching factory specifications for secure installation.

R-Line Product Line Information

The R-Line by Raybestos is a product line focused on delivering reliable, OE-quality brake components designed to meet or exceed factory standards. This line emphasizes precise fitment and consistent performance, making it a practical choice for maintaining braking systems on classic and late-model GM vehicles. The 580450R rotor exemplifies the R-Line’s commitment to quality and compatibility.

Applications and Problem Solving

• Replacement for worn or warped rotors on Buick Cutlass Supreme and Chevrolet Monte Carlo
• Restores braking efficiency on Pontiac Grand Prix and Oldsmobile Regal models
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Prevents brake fade by improving heat dissipation with vented design
• Ensures proper rotor thickness for safe braking performance

Installation Notes and Tips

When installing the Raybestos R-Line 580450R rotor, ensure the mounting surface is clean and free of rust or debris. Verify the rotor thickness before installation to confirm it meets the nominal specifications. Use the correct torque settings on the five mounting bolts arranged on the 115 mm bolt circle diameter to secure the rotor properly. It is recommended to replace brake pads simultaneously to maintain optimal braking performance.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 580450R rotor undergoes rigorous testing to comply with OEM specifications. While specific warranty details are not provided here, Raybestos typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.