DuraGo BR901398 Disc Brake Rotor - Rear

Overview of DuraGo BR901398 Disc Brake Rotor

The DuraGo BR901398 is a vented disc brake rotor designed specifically for various Audi models including the A4, A5, A6, A7, A8, Q5, and their respective Quattro and Sportback variants. Engineered from full cast iron construction, this rotor provides reliable braking performance tailored to meet the demands of these vehicles.

• Material: Durable cast iron for consistent heat dissipation
• Vented rotor design to improve cooling and reduce brake fade
• Nominal thickness of 0.87 inches (22 mm) with discard thickness at 0.79 inches (20 mm)
• Overall height of 1.43 inches (36.2 mm) ensuring proper fitment
• Outside diameter of 12.99 inches (330 mm) compatible with specified Audi models
• Five mounting bolt holes with a 4.41 inch (112 mm) bolt circle diameter
• Non-directional brake surface for versatile installation
• Conventional rotor type without ABS tone ring

Detailed Product Description

The DuraGo BR901398 disc brake rotor is constructed from full cast iron, a material known for its strength and ability to withstand high temperatures generated during braking. Its vented design allows air to flow between the rotor surfaces, enhancing heat dissipation and reducing the risk of brake fade during extended use. With a nominal thickness of 0.87 inches (22 mm) and a discard thickness of 0.79 inches (20 mm), this rotor maintains structural integrity throughout its service life. The rotor’s overall height of 1.43 inches (36.2 mm) and outside diameter of 12.99 inches (330 mm) are engineered to fit a range of Audi vehicles, including the A4, A5, A6, A7, A8, and Q5 models, along with their Quattro and Sportback versions. The five mounting bolt holes with a 4.41 inch (112 mm) bolt circle diameter ensure secure attachment to the hub assembly. This rotor features a non-directional brake surface, allowing for flexible installation without concern for rotor orientation.

Compatible Vehicles and Applications

• Compatible with Audi A4, A4 allroad, A4 Quattro
• Fits Audi A5 Quattro, A5 Sportback
• Suitable for Audi A6, A6 allroad, A6 Quattro
• Designed for Audi A7, A7 Quattro, A7 Sportback
• Fits Audi A8 Quattro, Q5, Q5 PHEV, Q5 Sportback
• Also compatible with Audi S4, S5, S5 Sportback, SQ5, SQ5 Sportback

Common Issues Addressed by This Rotor

• Brake rotor warping causing vibration during braking
• Reduced braking efficiency due to worn or thin rotors
• Overheating and brake fade from insufficient heat dissipation
• Uneven brake pad wear linked to rotor surface irregularities
• Noise and pulsation caused by damaged or out-of-spec rotors

Installation Notes and Tips

When installing the DuraGo BR901398 rotor, ensure the mounting surface is clean and free of rust or debris to promote proper seating. Since this rotor is non-directional, it can be installed on either side without concern for rotation direction. Verify that the rotor thickness is above the discard thickness of 0.79 inches (20 mm) before installation. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Torque mounting bolts to manufacturer specifications to avoid rotor distortion.

Quality Assurance and Warranty

DuraGo manufactures the BR901398 rotor to meet or exceed OEM specifications for fit, form, and function. The full cast iron construction and vented design contribute to consistent braking performance and durability. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.