Centric 121.33046 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.33046

The Centric C-TEK Standard Disc Brake Rotor 121.33046 is engineered for reliable braking performance on the Audi 90 Quattro. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking under various driving conditions.

• Compatible with Audi 90 Quattro models
• Part number 121.33046 for precise identification
• Vented disc design with straight vane style for improved cooling
• Nominal thickness of 0.866 inches (22.000 mm) and discard thickness of 0.787 inches (20.000 mm)
• Overall height of 2.217 inches (56.300 mm) and outside diameter of 10.079 inches (256.000 mm)
• Floating disc mounting for optimal rotor alignment
• Solid smooth surface type for consistent pad contact
• Four stud/lug holes with 0.602 inch (15.300 mm) diameter

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM standards. This product line focuses on delivering dependable braking performance with precise fitment and durability. The 121.33046 rotor features a vented design with straight vanes to enhance heat dissipation, reducing the risk of brake fade during extended use. This rotor is engineered to provide a smooth braking surface and consistent thickness, ensuring reliable stopping power for the Audi 90 Quattro.

Technical Specifications and Features

The Centric 121.33046 rotor is a vented disc brake rotor with a smooth surface type, designed to optimize braking efficiency. It has a nominal thickness of 0.866 inches (22.000 mm) and a discard thickness of 0.787 inches (20.000 mm), indicating when replacement is necessary to maintain safety. The overall height measures 2.217 inches (56.300 mm), and the outside diameter is 10.079 inches (256.000 mm). The rotor includes a floating disc mounting system and features four stud/lug holes with a diameter of 0.602 inches (15.300 mm) on a 4.252 inch (108.000 mm) bolt circle diameter. The straight vane style enhances airflow through the rotor, aiding in heat dissipation during braking. This rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi 90 Quattro
• Addresses brake pulsation caused by uneven rotor thickness
• Improves heat dissipation to reduce brake fade during extended braking
• Restores smooth braking performance and pedal feel
• Prevents rotor disc cracking due to overheating

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.787 inches) before installation
• Clean rotor surface to remove any protective coating before mounting
• Check compatibility with Audi 90 Quattro using part number 121.33046
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and replace if worn to ensure optimal rotor performance

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM quality standards, ensuring reliable performance and durability. While specific warranty details for part number 121.33046 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult the product documentation or Centric directly for warranty terms related to this rotor.