Raybestos 580439 Disc Brake Rotor - Rear

Overview of Raybestos Specialty - Street Performance Rotor

The Raybestos Specialty - Street Performance disc brake rotor 580439 is engineered for reliable braking performance on select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed as a solid rotor with precise dimensions, it supports consistent stopping power for vehicles like the Cutlass Supreme, Grand Prix, Lumina, and Regal.

• Part Number: 580439
• Brand: Raybestos Specialty - Street Performance
• Rotor Type: Solid Disc Brake Rotor
• Outside Diameter: 10.100 inches (256.55 mm)
• Nominal Thickness: 0.492 inches (12.5 mm)
• Discard Thickness: 0.429 inches (10.9 mm)
• Overall Height: 1.114 inches (28.3 mm)
• Mounting Bolt Hole Quantity: 5
• Mounting Bolt Hole Circle Diameter: 4.528 inches (115 mm)
• Stud/Lug Hole Quantity: 5
• Conventional Rotor Type

Detailed Product Description

This Raybestos disc brake rotor 580439 is a solid, conventional rotor designed to meet the braking demands of mid-size and full-size vehicles from Buick, Chevrolet, Oldsmobile, and Pontiac. The rotor features a 10.100-inch outside diameter and a nominal thickness of 0.492 inches, providing a durable braking surface. The discard thickness of 0.429 inches indicates the minimum safe thickness before replacement is necessary, ensuring safety and performance. With five mounting bolt holes arranged on a 4.528-inch bolt circle diameter, this rotor is compatible with specific models including the Cutlass Supreme, Grand Prix, Lumina, and Regal. The overall height of 1.114 inches supports proper fitment and alignment within the brake assembly.

Specialty - Street Performance Product Line

The Raybestos Specialty - Street Performance line focuses on delivering rotors designed for street-driven vehicles requiring dependable braking performance under typical driving conditions. This product line balances durability and performance, making it suitable for drivers of Buick, Chevrolet, Oldsmobile, and Pontiac models who seek reliable replacement parts without modifications. The 580439 rotor exemplifies this approach with its solid construction and precise fitment specifications.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Buick Cutlass Supreme and Chevrolet Lumina
• Addressing brake pulsation or vibration issues in Pontiac Grand Prix and Oldsmobile Regal
• Restoring proper rotor thickness to maintain braking efficiency
• Ensuring compatibility with 5-lug bolt patterns on specified models
• Providing a solid rotor option for vehicles not requiring vented rotors

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean mounting surfaces to prevent rotor runout and uneven wear
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and replace if worn to optimize rotor performance
• Check for proper alignment with caliper and wheel hub assembly

Quality Assurance and Warranty

Raybestos rotors, including part number 580439, are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Users should consult product documentation or Raybestos directly for warranty terms applicable to this rotor.