Centric 121.33101 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.33101

The Centric C-TEK Standard Disc Brake Rotor 121.33101 is engineered for reliable braking performance on Audi A6 and A6 Quattro models. Designed as a vented rotor with a smooth surface, it provides consistent heat dissipation and stable stopping power under various driving conditions.

• Compatible with Audi A6 and A6 Quattro
• Part number 121.33101 for precise identification
• Vented disc brake rotor design for improved cooling
• Overall diameter of 330 mm (12.992 inches)
• Nominal thickness of 21.8 mm (0.858 inches) with discard thickness at 20 mm (0.787 inches)
• Floating disc mounting with pillar vane style for enhanced airflow
• 5 lug holes with 15.3 mm diameter and 112.3 mm bolt circle diameter
• Center hole diameter of 68 mm (2.677 inches)
• Weight approximately 8.02 kg (17.65 lbs)
• ABS tone ring not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for standard replacement applications. This product line focuses on delivering consistent braking performance with quality materials and manufacturing processes. The 121.33101 rotor fits within this line, providing a vented design and smooth surface finish suitable for Audi A6 and A6 Quattro vehicles requiring reliable rotor replacement.

Technical Details and Specifications

This Centric rotor features a vented design with pillar-style vanes that promote efficient heat dissipation, reducing the risk of brake fade during extended use. The rotor’s nominal thickness is 21.8 mm, with a discard thickness of 20 mm, indicating when replacement is necessary to maintain safe braking. The overall height measures 49.5 mm, and the outside diameter is 330 mm, matching OEM dimensions for proper fitment. The floating disc mounting style allows for slight movement to accommodate thermal expansion and improve rotor longevity. The rotor includes five lug holes with a diameter of 15.3 mm and a bolt circle diameter of 112.3 mm, ensuring compatibility with the specified Audi models. Note that this rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi A6 and A6 Quattro
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking consistency by restoring proper rotor thickness
• Helps reduce brake fade through vented design for better heat management
• Suitable for vehicles experiencing noise or vibration during braking

Installation Notes and Tips

• Ensure rotor thickness is measured before installation to confirm discard limits
• Clean rotor surface and hub mounting area to prevent uneven contact
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Inspect brake pads and replace if worn to optimize braking performance

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors line to meet OEM standards, ensuring durability and performance. The 121.33101 rotor undergoes rigorous quality control to maintain dimensional accuracy and material integrity. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.