Raybestos 9833R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 9833R

The Raybestos R-Line 9833R disc brake rotor is engineered for reliable braking performance on select Audi models. Designed as a vented, conventional rotor, it offers consistent heat dissipation and durability for vehicles such as the Audi 80, 90, 100, and 5000 Quattro series.

• Vented disc brake rotor for improved heat management
• Overall height: 1.820 inches (46.250 mm)
• Outside diameter: 10.060 inches (255.500 mm)
• Nominal thickness: 0.865 inches (21.950 mm)
• Discard thickness: 0.787 inches (20.000 mm)
• Mounting bolt hole quantity: 4 with 4.250 inch (107.950 mm) bolt circle diameter
• Center hole diameter: 2.680 inches (68.050 mm)
• Compatible with 4 stud/lug hole configurations

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable replacement brake components that meet or exceed OEM specifications. This product line emphasizes quality materials and precise manufacturing tolerances, ensuring that the 9833R rotor maintains consistent thickness and structural integrity for safe braking performance on Audi vehicles.

Technical Description and Specifications

The 9833R disc brake rotor is a vented type, which means it has internal vanes between the rotor faces to enhance cooling during braking. This helps reduce the risk of brake fade under heavy use. The rotor’s nominal thickness is 0.865 inches (21.950 mm), with a discard thickness of 0.787 inches (20.000 mm), indicating when the rotor should be replaced to maintain safe braking. The overall height of 1.820 inches (46.250 mm) and outside diameter of 10.060 inches (255.500 mm) are designed to fit specific Audi models, including the 80, 80 Quattro, 90, 90 Quattro, 100, 100 Quattro, and 5000 Quattro. The rotor mounts using four bolts on a 4.250 inch (107.950 mm) bolt circle diameter, with a center hole diameter of 2.680 inches (68.050 mm).

Applications and Problem Solving

• Replacement for worn or warped rotors on Audi 80 and 90 Quattro models
• Addresses brake pulsation caused by uneven rotor thickness
• Improves heat dissipation to reduce brake fade during extended use
• Restores proper rotor thickness for consistent braking performance
• Compatible with vehicles requiring a 4-bolt vented rotor configuration

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Use proper tools to avoid damage to rotor or mounting components

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring dimensional accuracy and material consistency. While specific warranty details for part number 9833R are not provided, Raybestos products typically come with a limited warranty against defects in materials and workmanship. Users should consult product documentation or the manufacturer for exact warranty terms.