Centric 121.33104 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.33104

The Centric C-TEK Standard Disc Brake Rotor 121.33104 is engineered for reliable braking performance on Audi A6 and A6 Quattro models. Designed as a solid, smooth-surface rotor, it meets precise specifications to maintain consistent stopping power and vehicle safety.

• Compatible with Audi A6 and A6 Quattro
• Part number: 121.33104
• Solid disc brake rotor with smooth surface
• Outside diameter: 11.882 inches (301.8 mm)
• Nominal thickness: 0.472 inches (12.0 mm)
• Discard thickness: 0.394 inches (10.0 mm)
• Overall height: 1.949 inches (49.5 mm)
• Floating disc mounting design
• 5 stud/lug holes with 0.602 inch (15.3 mm) diameter
• Center hole diameter: 2.677 inches (68.0 mm)
• Mounting bolt hole circle diameter: 4.417 inches (112.2 mm)
• Weight: 12.4 lbs (5.64 kgs)
• ABS tone ring not included
• Bearings 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 braking applications. This product line focuses on delivering consistent performance with solid rotors featuring smooth surfaces, suitable for everyday driving conditions. The 121.33104 rotor fits within this line, providing a direct replacement for Audi A6 and A6 Quattro vehicles requiring a reliable, standard rotor solution.

Detailed Product Description

This Centric disc brake rotor features a solid design with a smooth surface type, optimized for consistent brake pad contact and heat dissipation. The rotor’s outside diameter measures 11.882 inches (301.8 mm), with a nominal thickness of 0.472 inches (12.0 mm) and a discard thickness of 0.394 inches (10.0 mm), ensuring it meets the necessary wear limits for safe operation. The overall height of 1.949 inches (49.5 mm) and floating disc mounting provide proper alignment and fitment on the hub assembly. The rotor includes five stud/lug holes with a diameter of 0.602 inches (15.3 mm) arranged on a 4.417-inch (112.2 mm) bolt circle diameter, matching the factory specifications for Audi A6 and A6 Quattro models. This rotor does not include an ABS tone ring or bearings, so those components must be sourced separately if required.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi A6 and A6 Quattro
• Addresses brake pulsation and vibration issues
• Restores proper braking performance and pedal feel
• Eliminates rotor thickness variation and uneven wear
• Suitable for routine maintenance and brake system overhauls

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coating before mounting
• Verify compatibility with existing brake pads and hardware
• Torque lug nuts to manufacturer specifications for proper fitment
• Check for proper alignment of the floating disc mounting system

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 121.33104 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult Centric’s official documentation or authorized distributors for exact warranty terms.