DuraGo BR55039-01 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for Select GM Vehicles

The DuraGo BR55039-01 disc brake rotor is engineered to provide reliable braking performance for a range of Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed with a full cast construction and rust-resistant coating, this rotor offers durability and consistent stopping power for vehicles like the Chevrolet Impala and Pontiac Grand Prix.

• Material: High-quality cast iron for strength and heat dissipation
• Construction: Full cast solid rotor with drum-in-hat design
• Dimensions: 10.95 inch (278.2 mm) outside diameter and 2.01 inch (51.1 mm) overall height
• Mounting: 5 bolt holes with 4.65 inch (118 mm) bolt circle diameter
• Rust-resistant coating to reduce corrosion and extend rotor life
• Non-directional brake surface for versatile installation
• Compatible with select Buick, Chevrolet, Oldsmobile, and Pontiac models

Product Details and Specifications

The DuraGo BR55039-01 rotor features a solid, full cast iron construction that ensures structural integrity under braking stress. Its drum-in-hat design integrates a drum brake surface for rear parking brake functionality, making it suitable for vehicles equipped with this system. The rotor measures 10.95 inches in outside diameter and 2.01 inches in overall height, with a nominal thickness of 0.43 inches (11 mm) and a discard thickness of 0.35 inches (9 mm), providing clear service limits for maintenance. The 5 mounting bolt holes are spaced on a 4.65 inch (118 mm) bolt circle diameter, with each hole measuring 0.63 inches (16.1 mm) in diameter. A rust-resistant coating helps protect the rotor surface from corrosion, which is especially beneficial in humid or road salt environments. This rotor does not include an ABS tone ring and features a non-directional braking surface, allowing for flexible installation orientation.

Compatible Vehicles and Applications

• Buick Regal and Century models requiring rear drum-in-hat rotors
• Chevrolet Impala and Monte Carlo with compatible rear disc brake systems
• Oldsmobile Alero and Intrigue models with matching rotor specifications
• Pontiac Grand Am and Grand Prix vehicles equipped with rear drum-in-hat rotors

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern against your vehicle’s specifications before installation
• Ensure the rotor surface is clean and free of contaminants prior to mounting
• Check the nominal and discard thickness to determine if rotor replacement is necessary
• Use proper torque specifications for mounting bolts to avoid warping
• Inspect brake pads and hardware during rotor replacement for optimal braking performance

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR55039-01 rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details are not provided, DuraGo products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.