Raybestos 582455R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 582455R

The Raybestos R-Line Disc Brake Rotor 582455R is engineered for reliable braking performance on select Buick, Cadillac, Chevrolet, and GMC models. Designed as a vented rotor with smooth surface finish, it meets the demands of vehicles like the Cadillac Escalade IQ and Chevrolet Silverado EV.

• Part Number: 582455R
• Brand Line: Raybestos R-Line
• Vented disc brake rotor with smooth surface
• Overall diameter: 12.638 inches (321.000 mm)
• Nominal thickness: 1.102 inches (28.000 mm)
• Discard thickness: 0.984 inches (25.000 mm)
• Inside diameter: 7.504 inches (190.600 mm)
• Mounting bolt hole quantity: 5 with 0.634 inch (16.100 mm) diameter
• Center hole diameter: 2.657 inches (67.500 mm)
• Mounting bolt hole circle diameter: 4.724 inches (120.000 mm)
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Description

This Raybestos R-Line disc brake rotor 582455R is a vented rotor designed to provide effective heat dissipation during braking, reducing the risk of brake fade. The smooth surface finish ensures consistent pad contact and braking performance. With an overall diameter of 12.638 inches and a nominal thickness of 1.102 inches, this rotor fits specific models including the Buick Envision, Cadillac Escalade IQ, Hummer EV Pickup, Hummer EV SUV, Chevrolet Silverado EV, and GMC XT4. The rotor features five mounting bolt holes with a 120 mm bolt circle diameter, ensuring secure installation. The center hole diameter of 67.5 mm and conventional drum-in-hat design make it compatible with the specified vehicle brake assemblies.

Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering reliable, OEM-quality brake components for a range of vehicles. This line emphasizes durability and consistent braking performance, making it suitable for drivers who require dependable replacement parts. The 582455R rotor exemplifies the R-Line’s commitment to quality with its vented design and precise fitment specifications.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below discard limits to maintain braking safety
• Improving heat dissipation to reduce brake fade on heavy-duty or electric vehicles
• Restoring proper rotor dimensions for secure mounting and alignment
• Ensuring compatibility with specific Buick, Cadillac, Chevrolet, and GMC models

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match vehicle specifications before installation
• Inspect brake pads and hardware for wear and replace as necessary
• Clean rotor surface to remove any protective coatings or debris prior to installation
• Torque mounting bolts to manufacturer specifications to ensure secure fit
• Perform a bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The 582455R rotor undergoes rigorous quality control to ensure durability and consistent braking performance. Warranty coverage details should be confirmed with the point of purchase or Raybestos directly.