Raybestos 582374R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 582374R

The Raybestos R-Line Disc Brake Rotor 582374R is engineered for reliable braking performance on select Buick and Cadillac models. Designed specifically for the Buick Regal Sportback, Regal TourX, and Cadillac ELR, this vented rotor meets precise fitment and durability standards.

• Compatible with Buick Regal Sportback, Regal TourX, and Cadillac ELR
• Part number 582374R for exact replacement
• Vented disc brake rotor with smooth surface finish
• Overall height: 1.772 inches (45.000 mm)
• Outside diameter: 13.587 inches (345.100 mm)
• Nominal thickness: 1.181 inches (30.000 mm)
• Discard thickness: 0.984 inches (25.000 mm)
• Mounting bolt hole quantity: 5 with 0.555 inch (14.100 mm) diameter
• Center hole diameter: 2.783 inches (70.700 mm)
• Mounting bolt hole circle diameter: 4.528 inches (115.000 mm)
• Conventional rotor type with drum-in-hat design

Detailed Product Description

This Raybestos R-Line disc brake rotor 582374R 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 outside diameter of 13.587 inches and a nominal thickness of 1.181 inches, this rotor meets the exact specifications required for the Buick Regal Sportback, Regal TourX, and Cadillac ELR. The rotor features five mounting bolt holes with a 0.555 inch diameter and a bolt circle diameter of 4.528 inches, ensuring secure and precise installation. The conventional drum-in-hat design supports compatibility with existing brake components on these vehicles.

About the 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 precise fitment and consistent performance, making it suitable for drivers seeking dependable replacement parts. The 582374R rotor exemplifies the R-Line’s commitment to matching factory specifications for fit and function on Buick and Cadillac models.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Buick Regal Sportback and Regal TourX
• Restores braking performance on Cadillac ELR with original equipment specifications
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Helps prevent brake fade through vented rotor design
• Corrects rotor thickness below discard limits to maintain safe braking

Installation Notes and Tips

• Verify rotor thickness before installation; discard thickness is 0.984 inches (25.000 mm)
• Ensure mounting bolt holes align with vehicle hub using the 5-hole pattern and 4.528 inch bolt circle diameter
• Clean rotor surface and hub mounting area to prevent uneven contact
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and replace if worn to optimize braking performance

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet or exceed OEM standards for durability and performance. The 582374R rotor undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship, providing confidence in the product’s reliability for Buick Regal Sportback, Regal TourX, and Cadillac ELR applications.