DuraGo BR55040 Disc Brake Rotor - Front

Overview of DuraGo BR55040 Disc Brake Rotor

The DuraGo BR55040 disc brake rotor is engineered for reliable braking performance on select Chevrolet, Oldsmobile, and Pontiac vehicles. Designed with durable cast iron and a vented construction, this rotor supports consistent heat dissipation and long service life for models like the Chevrolet Malibu and Pontiac Grand Am.

• Material: Full cast iron construction for strength and durability
• Vented rotor design to improve heat dissipation
• Nominal thickness of 1.02 inches (26 mm) with discard thickness at 0.97 inches (24.7 mm)
• Outside diameter of 10.96 inches (278.3 mm) suitable for specific GM models
• Five mounting bolt holes with a 4.65 inch (118 mm) bolt circle diameter
• Non-directional brake surface for versatile installation
• Conventional rotor type without ABS tone ring

Detailed Product Description

The DuraGo BR55040 is a conventional, vented disc brake rotor constructed from full cast iron, providing a balance of durability and thermal management. Its vented design allows air to flow between the rotor surfaces, reducing heat buildup during braking and helping to maintain consistent stopping power. With a nominal thickness of 1.02 inches and a discard thickness of 0.97 inches, this rotor meets the specifications required for safe and effective brake performance. The rotor measures 10.96 inches in outside diameter and features five mounting bolt holes arranged on a 4.65 inch bolt circle diameter, ensuring compatibility with Chevrolet Malibu, Oldsmobile Alero, Pontiac Grand Am, and other related models.

Compatible Vehicles and Applications

This rotor is compatible with the following makes and models:

• Chevrolet Malibu
• Oldsmobile Alero and Cutlass
• Pontiac Grand Am and Classic

It is designed for vehicles requiring a conventional, vented disc brake rotor without ABS tone ring integration.

Common Issues Addressed by DuraGo BR55040

• Brake rotor warping due to excessive heat
• Reduced braking efficiency from worn or thin rotors
• Brake noise caused by uneven rotor surfaces
• Vibration or pulsation during braking
• Corrosion-related rotor degradation (note: this rotor does not include rust-resistant coating)

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.97 inches) before installation
• Clean mounting surfaces to prevent uneven rotor seating
• Torque mounting bolts to manufacturer specifications for secure fitment
• Check compatibility with vehicle’s brake system, especially if ABS tone ring is required
• Inspect brake pads and replace if worn to maintain optimal braking performance

Quality Assurance and Warranty

DuraGo brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR55040 rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.