DuraGo BR900378 Disc Brake Rotor - Rear

Overview of DuraGo BR900378 Disc Brake Rotor

The DuraGo BR900378 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 support effective heat dissipation and consistent stopping power.

• Material: Durable cast iron construction
• Vented rotor design for improved cooling
• Drum-in-hat type rotor with integrated parking brake drum
• Non-directional brake surface for versatile installation
• Six mounting bolt holes with precise fitment dimensions
• Nominal thickness of 0.79 inches (20 mm) with discard thickness at 0.72 inches (18.4 mm)
• Overall diameter of 13.03 inches (331 mm) and height of 2.1 inches (53.4 mm)

Detailed Product Description

The DuraGo BR900378 is a full cast iron disc brake rotor designed to meet the braking demands of mid-size SUVs such as the Buick Enclave and Chevrolet Traverse. Its vented construction enhances airflow to reduce heat buildup during braking, which helps maintain consistent performance and reduces the risk of brake fade. The drum-in-hat design integrates a parking brake drum, eliminating the need for a separate component and simplifying installation. This rotor features six mounting bolt holes with a bolt circle diameter of 5.2 inches (132 mm) and a center hole diameter of 2.98 inches (75.6 mm), ensuring a precise fit for compatible vehicles. The non-directional brake surface allows for flexible rotor placement without concern for rotation direction.

Compatible Vehicles and Applications

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

This rotor is ideal for replacing worn or damaged rotors on these models, restoring braking efficiency and safety.

Common Issues Addressed by This Rotor

• Brake pulsation caused by warped rotors
• Reduced braking performance due to rotor wear
• Excessive brake noise from uneven rotor surfaces
• Overheating and brake fade during heavy use
• Parking brake malfunction related to rotor drum wear

Installation Notes and Tips

When installing the DuraGo BR900378 rotor, ensure the mounting surface is clean and free of rust or debris to promote proper seating. Verify the rotor thickness before installation; replace if below the discard thickness of 0.72 inches (18.4 mm). Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system. Use proper torque specifications for the six mounting bolts to avoid rotor distortion. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

DuraGo manufactures this rotor with cast iron material to provide durability and consistent braking performance. While this rotor does not feature a rust-resistant coating, proper maintenance can help extend its service life. The BR900378 part number is backed by DuraGo’s standard quality controls to meet OEM specifications. Please refer to DuraGo’s warranty policy for coverage details.