DuraGo BR55039 Disc Brake Rotor - Rear

Overview of DuraGo BR55039 Disc Brake Rotor

The DuraGo BR55039 is a solid disc brake rotor designed for reliable braking performance on select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered with full cast iron construction, this rotor provides consistent durability and fitment for models such as the Alero, Century, Grand Am, Grand Prix, Impala, Intrigue, Monte Carlo, and Regal.

• Material: Cast iron for strength and heat dissipation
• Construction: Full cast solid rotor
• Outside Diameter: 10.95 inches (278.2 mm)
• Nominal Thickness: 0.43 inches (11 mm)
• Discard Thickness: 0.35 inches (9 mm)
• Mounting Bolt Hole Quantity: 5
• Mounting Bolt Hole Circle Diameter: 4.65 inches (118 mm)
• Center Hole Diameter: 2.78 inches (70.7 mm)
• Drum-in-hat type rotor with non-directional brake surface
• No ABS tone ring included
• No rust resistant coating

Detailed Product Description

The DuraGo BR55039 disc brake rotor is constructed from cast iron, providing a solid and durable braking surface suitable for daily driving conditions. Its full cast design ensures structural integrity and consistent performance over time. With an outside diameter of 10.95 inches and a nominal thickness of 0.43 inches, this rotor meets OEM specifications for the compatible Buick, Chevrolet, Oldsmobile, and Pontiac models listed. The rotor features a drum-in-hat design, integrating the parking brake drum into the rotor assembly, which is common for these vehicle applications. The non-directional brake surface allows for flexible installation without concern for rotor orientation. This rotor does not include an ABS tone ring and does not have a rust resistant coating, so proper maintenance is recommended to prevent corrosion.

Compatible Vehicles and Applications

This rotor is compatible with the following makes and models:

• Buick Alero, Century, Regal
• Chevrolet Impala, Monte Carlo
• Oldsmobile Intrigue
• Pontiac Grand Am, Grand Prix

Use the DuraGo BR55039 rotor when replacing worn or damaged rotors on these vehicles to restore braking performance and safety.

Common Issues Addressed by This Rotor

• Brake pulsation caused by warped rotors
• Reduced braking efficiency due to worn rotor thickness
• Noise and vibration from uneven rotor surfaces
• Brake fade from overheated or damaged rotors
• Parking brake malfunction related to drum-in-hat rotor wear

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match your vehicle before installation
• Ensure the rotor surface is clean and free of oil or debris prior to mounting
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Check brake pads for wear and replace if necessary during rotor installation
• Perform a proper bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While this product does not include a rust resistant coating, the cast iron construction provides reliable durability under normal operating conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.