DuraGo BR900386 Disc Brake Rotor - Front

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

The DuraGo BR900386 disc brake rotor is engineered to provide reliable braking performance for select Buick, Cadillac, and Chevrolet models. Designed with a vented, full cast construction, this rotor offers consistent heat dissipation and structural integrity for vehicles like the Buick LaCrosse and Chevrolet Impala.

• Material: Cast iron for durability and heat resistance
• Vented rotor design to improve cooling and reduce brake fade
• Nominal thickness of 1.18 inches (30 mm) with discard thickness at 1.13 inches (28.6 mm)
• Overall height of 2.04 inches (51.9 mm) ensuring proper fitment
• Outside diameter of 12.72 inches (323.2 mm) compatible with specified models
• Five mounting bolt holes with a 4.53 inch (115 mm) bolt circle diameter
• Non-directional brake surface for versatile installation
• Conventional rotor type without ABS tone ring

Technical Details and Construction

The BR900386 rotor features a full cast iron construction, providing a solid and durable braking surface. Its vented design allows air to flow between the rotor faces, helping to dissipate heat generated during braking and reducing the risk of warping. The rotor’s nominal thickness of 1.18 inches ensures a long service life, while the discard thickness of 1.13 inches indicates when replacement is necessary to maintain safe braking performance. With an outside diameter of 12.72 inches and an overall height of 2.04 inches, this rotor fits precisely on compatible vehicles without modification.

Compatible Vehicles and Applications

This DuraGo disc brake rotor is compatible with a range of Buick, Cadillac, and Chevrolet models, including the Buick Allure, LaCrosse, and Lucerne, as well as the Cadillac DTS and Chevrolet Impala and Impala Limited. The part number BR900386 ensures you receive the correct rotor designed specifically for these vehicles’ braking systems.

• Replaces worn or warped rotors causing vibration or noise
• Restores braking efficiency and pedal feel
• Addresses rotor thickness below manufacturer specifications
• Eliminates brake pulsation and uneven pad wear
• Improves heat dissipation to prevent brake fade

Installation Notes and Tips

When installing the DuraGo BR900386 rotor, ensure the mounting surface is clean and free of rust or debris. Use proper torque specifications for the five mounting bolts to avoid rotor distortion. Since this rotor does not include an ABS tone ring, verify compatibility with your vehicle’s ABS system before installation. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

DuraGo manufactures the BR900386 rotor to meet or exceed OEM specifications for fit, form, and function. While this rotor does not feature a rust-resistant coating, its cast iron construction provides reliable durability under normal operating conditions. Please consult DuraGo’s warranty policy for specific coverage details related to this part number.