DuraGo BR55057-01 Disc Brake Rotor - Rear

Overview of DuraGo BR55057-01 Disc Brake Rotor

The DuraGo BR55057-01 is a cast iron vented disc brake rotor designed for heavy-duty applications. Engineered for reliable braking performance, this rotor is compatible with select Chevrolet, GMC, and Hummer models, including Silverado 2500 HD and Yukon XL 2500.

• Material: Durable cast iron construction
• Vented design for improved heat dissipation
• Rust resistant coating to reduce corrosion
• Drum-in-hat type rotor with 8 mounting bolt holes
• Non-directional brake surface for versatile installation
• Outside diameter: 12.99 inches (330 mm)
• Nominal thickness: 1.14 inches (29 mm)
• Discard thickness: 1.04 inches (26.5 mm)
• Overall height: 3.43 inches (87 mm)
• Center hole diameter: 4.63 inches (117.7 mm)
• Mounting bolt hole circle diameter: 6.5 inches (165.1 mm)

Detailed Product Description

The DuraGo BR55057-01 disc brake rotor is constructed from full cast iron, providing a balance of strength and thermal conductivity essential for braking systems in heavy-duty trucks and SUVs. Its vented design enhances airflow between the rotor surfaces, helping to dissipate heat generated during braking and reducing the risk of brake fade. The rotor features a rust resistant coating that helps protect against corrosion, extending the rotor's service life in various driving conditions.

This rotor is a drum-in-hat type, integrating a drum brake surface within the rotor hat area, which is common in many Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD models. The non-directional brake surface allows for flexible installation without concern for rotor orientation. With 8 mounting bolt holes and precise dimensions such as a 12.99-inch outside diameter and 4.63-inch center hole diameter, this rotor is engineered to meet OEM specifications for a secure fit.

Compatible Vehicles and Applications

• Chevrolet Avalanche 2500
• Chevrolet Express 2500 and 3500
• Chevrolet Silverado 1500 HD, 2500, and 2500 HD
• Chevrolet Suburban 2500
• GMC Sierra 1500 HD, 2500, and 2500 HD
• GMC Yukon XL 2500
• GMC Savana 2500 and 3500
• Hummer H2

Common Issues Addressed by This Rotor

• Brake rotor warping due to excessive heat buildup
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency from worn or thin rotors
• Brake noise caused by uneven rotor wear
• Compatibility issues with drum-in-hat brake systems

Installation Notes and Tips

Ensure the rotor surface and hub mounting area are clean and free of debris before installation. Verify rotor thickness and discard thickness to confirm suitability for replacement. The non-directional design allows installation on either side without orientation concerns. Torque mounting bolts to manufacturer specifications to avoid rotor distortion. This rotor does not include an ABS tone ring, so verify ABS sensor compatibility if applicable.

Quality Assurance and Warranty

DuraGo manufactures the BR55057-01 rotor to meet or exceed OEM standards for fit, form, and function. The cast iron construction and rust resistant coating contribute to durability and consistent braking performance. Warranty details should be confirmed with the point of purchase or manufacturer documentation.