DuraGo BR55074 Disc Brake Rotor - Front

Overview of DuraGo BR55074 Disc Brake Rotor

The DuraGo BR55074 disc brake rotor is engineered for reliable braking performance on select Buick, 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 Buick Rendezvous and Pontiac Montana.

• Material: Cast iron for strength and durability
• Vented rotor design to improve heat dissipation
• Nominal thickness of 1.18 inches (30 mm) with discard thickness at 1.06 inches (27 mm)
• Overall height of 2.04 inches (51.8 mm) and outside diameter of 11.81 inches (300 mm)
• Five mounting bolt holes with a 4.53 inch (115 mm) bolt circle diameter
• Non-directional brake surface for versatile installation
• Conventional rotor type without ABS tone ring

Detailed Product Description

The DuraGo BR55074 is a full cast iron disc brake rotor designed specifically for compatibility with Buick Aztek, Oldsmobile Silhouette, and Pontiac Montana models. Its vented construction allows for improved airflow between the rotor surfaces, reducing heat buildup during braking and helping to maintain consistent stopping power. The rotor measures 11.81 inches in diameter and 2.04 inches in overall height, fitting vehicles requiring a 5-bolt mounting pattern with a 4.53 inch bolt circle diameter. The nominal thickness of 1.18 inches ensures durability, while the discard thickness of 1.06 inches indicates when replacement is necessary to maintain safe braking performance. This rotor does not include an ABS tone ring and features a non-directional braking surface, allowing for flexible installation without concern for rotor orientation.

Compatible Vehicles and Applications

• Buick Aztek
• Buick Rendezvous
• Oldsmobile Silhouette
• Pontiac Montana

This rotor is intended for use in disc brake systems on these specific models, providing a direct replacement for worn or damaged rotors to restore braking efficiency and safety.

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.06 inches) before installation
• Clean mounting surfaces to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fitment
• Check brake pads for wear and replace if necessary when installing new rotors
• Perform a test drive to verify proper braking function after installation

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The BR55074 rotor undergoes quality control processes to ensure consistent performance and durability. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.