DuraGo BR55086 Disc Brake Rotor - Rear

Overview of DuraGo BR55086 Disc Brake Rotor

The DuraGo BR55086 is a cast iron vented disc brake rotor designed for heavy-duty Chevrolet and GMC trucks. Engineered to meet the demands of models like the Silverado 1500 HD and Sierra 1500 HD, this rotor provides reliable braking performance under various driving conditions.

• Material: Durable cast iron construction
• Vented design for improved heat dissipation
• Drum-in-hat type rotor with integrated parking brake drum
• Outside diameter: 12.99 inches (330 mm)
• Nominal thickness: 1.14 inches (29 mm); discard thickness: 1.04 inches (26.5 mm)
• Mounting bolt hole quantity: 8 with 6.5 inches (165.1 mm) bolt circle diameter
• Non-directional brake surface for versatile installation
• Overall height: 3.37 inches (85.7 mm)

Detailed Product Description

The DuraGo BR55086 disc brake rotor is constructed from full cast iron, providing a balance of strength and thermal conductivity essential for heavy-duty braking applications. Its vented design enhances airflow to reduce heat buildup during braking, which helps maintain consistent stopping power and reduces the risk of rotor warping. This rotor features a drum-in-hat configuration, integrating a parking brake drum within the rotor assembly, making it compatible with vehicles equipped with rear drum parking brakes.

With an outside diameter of 12.99 inches and a nominal thickness of 1.14 inches, the BR55086 meets OEM specifications for Chevrolet Silverado 1500 HD, Silverado 2500, Sierra 1500 HD, Suburban 2500, and Yukon XL 2500 models. The rotor includes eight mounting bolt holes arranged on a 6.5-inch bolt circle diameter, ensuring proper fitment and secure installation. The non-directional brake surface allows for flexible rotor placement without concern for rotation direction.

Compatible Vehicles and Applications

• Chevrolet Silverado 1500 HD
• Chevrolet Silverado 2500
• Chevrolet Suburban 2500
• GMC Sierra 1500 HD
• GMC Yukon XL 2500

This rotor is designed specifically for these heavy-duty Chevrolet and GMC trucks, providing reliable braking performance for towing, hauling, and daily driving.

Common Issues Addressed by DuraGo BR55086

• Brake rotor warping due to excessive heat
• Uneven brake pad wear caused by rotor thickness variation
• Reduced braking efficiency from worn or damaged rotors
• Noise and vibration during braking from rotor surface irregularities
• Parking brake malfunction related to drum-in-hat rotor wear

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.04 inches) before installation
• Clean mounting surface to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and replace if worn to maintain optimal braking performance
• Check for ABS sensor clearance as this rotor does not include an ABS tone ring

Quality Assurance and Warranty

DuraGo manufactures the BR55086 rotor to meet or exceed OEM standards for material and dimensional accuracy. The full cast iron construction and vented design contribute to durability and consistent braking performance. While no rust-resistant coating is applied, proper maintenance and installation help extend rotor life. Warranty coverage details should be confirmed with the product documentation or manufacturer.