DuraGo BR900276 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for Buick and Cadillac

The DuraGo BR900276 disc brake rotor is engineered for reliable braking performance on select Buick and Cadillac models. Designed as a solid, full cast rotor, it offers consistent stopping power and durability for vehicles like the Buick Lucerne and Cadillac DTS.

• Constructed from high-quality cast iron for strength and heat dissipation
• Solid rotor design with a conventional construction type
• Compatible with 5 mounting bolt holes and a 11.5 inch (292 mm) outside diameter
• Nominal thickness of 0.47 inches (12 mm) with discard thickness at 0.41 inches (10.5 mm)
• Non-directional brake surface for versatile installation
• Center hole diameter of 2.78 inches (70.7 mm) and mounting bolt hole circle diameter of 4.53 inches (115 mm)

Product Details and Specifications

The DuraGo BR900276 rotor is a solid disc brake rotor made from cast iron, providing a balance of durability and heat management essential for braking systems. Its full cast construction ensures structural integrity under braking stress. This rotor features a nominal thickness of 0.47 inches (12 mm) and should be replaced once it reaches the discard thickness of 0.41 inches (10.5 mm) to maintain optimal braking efficiency. The rotor measures 11.5 inches (292 mm) in outside diameter and has an overall height of 1.94 inches (49.2 mm). It includes five mounting bolt holes with a diameter of 0.56 inches (14.2 mm) arranged on a 4.53 inch (115 mm) bolt circle diameter. The brake surface is non-directional, allowing for flexible installation without concern for rotor orientation. This rotor does not include an ABS tone ring and does not have rust-resistant coating, so proper maintenance is recommended to prevent corrosion over time.

Compatible Vehicles and Applications

This DuraGo disc brake rotor is specifically compatible with the following vehicles:

• Buick Lucerne
• Cadillac DTS

It is designed to meet the braking requirements of these models, ensuring proper fitment and performance when replacing worn or damaged rotors.

Common Issues Addressed by This Rotor

• Brake pulsation or vibration caused by warped rotors
• Reduced braking efficiency due to worn rotor thickness
• Noise or squealing from uneven rotor surfaces
• Overheating and brake fade during extended braking
• Corrosion-related rotor surface degradation (requires maintenance)

Installation Notes and Tips

When installing the DuraGo BR900276 rotor, ensure the rotor thickness is measured and compared to the discard thickness specification of 0.41 inches (10.5 mm). Replace the rotor if it is below this limit. Clean the rotor surface before installation to remove any protective coatings or contaminants. Since this rotor does not include an ABS tone ring, verify compatibility with your vehicle’s ABS system. Use proper torque specifications on the 5 mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to ensure even wear and optimal braking performance.

Quality Assurance and Warranty

DuraGo manufactures this rotor to meet or exceed OEM standards for fit, form, and function. While this product does not include a rust-resistant coating, it is built with durable cast iron material to withstand typical driving conditions. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.