DuraGo BR55051-01 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for Buick, Cadillac, Pontiac

The DuraGo BR55051-01 disc brake rotor is engineered to provide reliable braking performance for select Buick, Cadillac, and Pontiac models. Designed with a full cast construction and rust-resistant coating, this solid rotor offers consistent stopping power and durability for vehicles like the Buick Park Avenue, Cadillac DeVille, and Pontiac Bonneville.

• Material: Cast iron for strength and heat dissipation
• Full cast construction enhances rotor integrity
• Rust-resistant coating extends rotor life
• Solid, non-vented rotor design
• Compatible with 5 mounting bolt holes and conventional rotor setup
• Outside diameter: 11.72 inches (297.7 mm)
• Nominal thickness: 0.44 inches (11.2 mm)
• Discard thickness: 0.35 inches (9 mm)
• Overall height: 1.52 inches (38.7 mm)
• Non-directional brake surface for versatile installation

Product Details and Specifications

The DuraGo BR55051-01 rotor is constructed from cast iron, a material known for its excellent heat dissipation and durability under braking stress. This rotor features a full cast design, which provides structural strength and consistent performance over time. The rust-resistant coating helps protect the rotor surface from corrosion, maintaining braking efficiency and appearance. With a solid rotor type, it is designed for vehicles that do not require vented rotors, making it suitable for standard braking systems on the Buick Bonneville, Cadillac Seville, and Park Avenue.

The rotor measures 11.72 inches in outside diameter and has a nominal thickness of 0.44 inches, with a discard thickness of 0.35 inches, indicating when replacement is necessary. It includes five mounting bolt holes with a bolt circle diameter of 4.65 inches (118 mm) and a center hole diameter of 2.79 inches (70.8 mm). The non-directional brake surface allows for flexible installation without concern for rotor orientation.

Compatible Vehicles and Applications

• Buick Bonneville
• Cadillac DeVille
• Cadillac Seville
• Buick Park Avenue
• Pontiac Bonneville

This rotor is designed specifically for these models, ensuring proper fitment and reliable braking performance when replacing worn or damaged rotors.

Common Issues Addressed by This Rotor

• Brake pulsation or vibration due to warped rotors
• Reduced braking efficiency from worn rotor surfaces
• Corrosion and rust buildup affecting rotor lifespan
• Noise or squealing caused by uneven rotor wear
• Brake fade from overheating during extended use

Installation Notes and Tips

When installing the DuraGo BR55051-01 rotor, ensure the rotor surface is clean and free of debris before mounting. Verify the rotor thickness is above the discard limit of 0.35 inches to maintain safe braking performance. Use proper torque specifications for the 5 mounting bolts to avoid rotor warping. Since this rotor has a non-directional surface, it can be installed on either side without concern for directional rotation.

Quality Assurance and Warranty

DuraGo rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating helps extend the rotor's service life under typical driving conditions. While specific warranty details are not provided, DuraGo products generally come with a limited warranty against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.