DuraGo BR55018 Disc Brake Rotor - Rear

Overview of DuraGo BR55018 Disc Brake Rotor

The DuraGo BR55018 disc brake rotor is engineered for reliable braking performance on select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed as a solid, full cast iron rotor, it provides consistent stopping power for vehicles like the Cutlass Supreme, Grand Prix, Lumina, Monte Carlo, and Regal.

• Material: Durable cast iron construction
• Rotor Type: Solid, conventional disc brake rotor
• Outside Diameter: 10.94 inches (278 mm)
• Nominal Thickness: 0.43 inches (11 mm)
• Discard Thickness: 0.37 inches (9.4 mm)
• Mounting Bolt Holes: 5 holes with 0.52 inch (13.1 mm) diameter
• Mounting Bolt Hole Circle Diameter: 4.53 inches (115 mm)
• Center Hole Diameter: 2.8 inches (71 mm)
• Non-directional brake surface, no cross drilling or slots
• ABS Tone Ring: Not included

Detailed Product Description

The DuraGo BR55018 rotor is constructed from full cast iron, providing a solid and durable braking surface suitable for everyday driving conditions. Its solid rotor design without slots or cross-drilled holes ensures even wear and consistent braking performance. The rotor measures 10.94 inches in outside diameter and maintains a nominal thickness of 0.43 inches, with a discard thickness of 0.37 inches, indicating when replacement is necessary to maintain safe braking. The rotor features five mounting bolt holes arranged on a 4.53-inch bolt circle diameter, compatible with the specified vehicle models. This conventional rotor does not include an ABS tone ring and is designed with a non-directional brake surface, allowing for flexible installation without concern for rotor orientation.

Compatible Vehicles and Applications

This disc brake rotor is compatible with the following makes and models:

• Buick Cutlass Supreme
• Chevrolet Lumina and Monte Carlo
• Oldsmobile Cutlass Supreme and Regal
• Pontiac Grand Prix

It is intended for use in standard braking systems requiring a solid rotor without venting or special coatings.

Common Issues Addressed by DuraGo BR55018

• Uneven or worn brake rotors causing vibration during braking
• Reduced braking efficiency due to rotor thickness below discard limits
• Brake noise related to rotor surface irregularities
• Corrosion and wear from daily driving without rust-resistant coating
• Compatibility issues with 5-bolt mounting patterns on specified vehicles

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.37 inches) before installation
• Clean mounting surfaces to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fitment
• Check for compatibility with vehicle ABS systems; this rotor does not include an ABS tone ring
• Inspect brake pads and hardware during rotor replacement for optimal performance

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The BR55018 rotor undergoes quality control processes to ensure consistent thickness and surface finish. While no specific warranty information is provided, DuraGo products typically come with limited warranties covering defects in materials and workmanship. It is recommended to verify warranty details with the point of purchase.