DuraGo BR900378-01 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for GM SUVs

The DuraGo BR900378-01 disc brake rotor is engineered for reliable braking performance on select Buick, Chevrolet, GMC, and Saturn SUVs. Designed specifically for models like the Acadia, Enclave, Outlook, and Traverse, this rotor offers a vented, drum-in-hat construction to help maintain optimal brake temperatures and consistent stopping power.

• Constructed from full cast iron for strength and durability
• Vented rotor design improves heat dissipation during braking
• Rust resistant coating extends rotor life and reduces corrosion
• Drum-in-hat style integrates parking brake drum functionality
• Non-directional brake surface for versatile installation
• Compatible with 6 mounting bolt holes and 13.03 inch (331 mm) outside diameter

Technical Details and Material Specifications

This DuraGo disc brake rotor features a nominal thickness of 0.79 inches (20 mm) and a discard thickness of 0.72 inches (18.4 mm), ensuring it meets precise wear limits for safe operation. The overall height measures 2.1 inches (53.4 mm), with a center hole diameter of 2.98 inches (75.6 mm) and a mounting bolt hole circle diameter of 5.2 inches (132 mm). The rotor is designed without cross-drilling or slotting, providing a solid braking surface optimized for everyday driving conditions. The rust resistant coating helps protect the rotor from environmental elements, reducing the risk of corrosion over time.

Compatible Vehicles and Applications

This rotor is compatible with the following makes and models:

• Buick Acadia and Acadia Limited
• Chevrolet Traverse
• GMC Acadia and Acadia Limited
• Saturn Outlook

It is ideal for drivers seeking a direct replacement rotor that maintains factory specifications and performance for these GM SUVs.

Common Issues Addressed by This Rotor

• Brake pulsation or vibration due to warped rotors
• Reduced braking efficiency from worn or thin rotors
• Corrosion and rust buildup affecting rotor surface
• Noise or squealing caused by uneven rotor wear
• Parking brake functionality integrated with drum-in-hat design

Installation Notes and Tips

Ensure the rotor is installed on vehicles equipped with 6 mounting bolts and verify the mounting bolt hole circle diameter matches 5.2 inches (132 mm). Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system. Proper cleaning of the rotor surface before installation is recommended to remove any protective coating residue. Always replace rotors in pairs to maintain balanced braking performance.

Quality Assurance and Warranty

DuraGo manufactures this rotor to meet or exceed OEM standards for fit, form, and function. The cast iron construction and rust resistant coating contribute to long service life under normal driving conditions. Please refer to DuraGo’s warranty policy for specific coverage details related to the BR900378-01 part number.