DuraGo BR55085 Disc Brake Rotor - Rear

Overview of DuraGo BR55085 Disc Brake Rotor

The DuraGo BR55085 is a solid disc brake rotor designed for reliable braking performance on select Buick, Chevrolet, and Pontiac models. Engineered from cast iron, this rotor offers consistent durability and precise fitment for vehicles like the Buick LaCrosse and Chevrolet Impala.

• Constructed from full cast iron for strength and heat dissipation
• Solid rotor design with a 10.63 inch (270 mm) outside diameter
• Nominal thickness of 0.55 inch (14 mm) with discard thickness at 0.49 inch (12.5 mm)
• Five mounting bolt holes with a 4.65 inch (118 mm) bolt circle diameter
• Non-directional brake surface suitable for conventional braking systems
• Compatible with Buick Allure, Chevrolet Grand Prix, Impala, Impala Limited, and Pontiac Grand Prix models

Detailed Product Description

The DuraGo BR55085 disc brake rotor is manufactured from cast iron, providing a balance of durability and thermal conductivity essential for effective braking. This rotor features a solid construction without slots or cross-drilled holes, which suits vehicles that require a conventional rotor design. With an overall height of 1.44 inches (36.7 mm) and a center hole diameter of 2.78 inches (70.7 mm), it ensures precise alignment and fitment. The rotor includes five mounting bolt holes sized at 0.65 inch (16.5 mm) diameter, arranged on a 4.65 inch (118 mm) bolt circle, matching factory specifications for the compatible Buick, Chevrolet, and Pontiac models.

Compatible Vehicle Applications

• Buick Allure
• Buick LaCrosse
• Chevrolet Grand Prix
• Chevrolet Impala and Impala Limited
• Pontiac Grand Prix

Common Issues Addressed by This Rotor

• Brake pulsation caused by uneven rotor wear
• Reduced braking efficiency due to worn or warped rotors
• Excessive brake noise from damaged or thin rotors
• Vibration during braking from rotor thickness below discard limits
• Inconsistent brake pedal feel due to rotor surface imperfections

Installation Notes and Tips

• Ensure rotor thickness is above the discard thickness of 0.49 inch (12.5 mm) before installation
• Clean rotor surface to remove any protective coatings or debris prior to mounting
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and calipers for wear or damage during rotor replacement
• Perform a proper bed-in procedure after installation 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 BR55085 rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details may vary, DuraGo typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.