Centric 121.33127 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.33127

The Centric C-TEK Standard Disc Brake Rotor 121.33127 is engineered for reliable braking performance on select Audi models. Designed as a solid rotor with a smooth surface, it provides consistent stopping power for vehicles such as the Audi A4, A5, A6, A7, and Q5.

• Compatible with Audi A4, A4 allroad, A4 Quattro, A5, A5 Quattro, A5 Sportback, A6, A6 Quattro, A7 Quattro, allroad, and Q5 models
• Part number 121.33127 for precise identification
• Solid disc brake rotor with smooth surface type
• Outside diameter of 11.811 inches (300 mm)
• Nominal thickness of 0.472 inches (12 mm) and discard thickness of 0.394 inches (10 mm)
• Overall height of 1.417 inches (36 mm)
• Floating disc mounting with 5 lug holes (0.602 inches diameter)
• Center hole diameter of 2.677 inches (68 mm) and mounting bolt hole circle diameter of 4.409 inches (112 mm)
• Weight approximately 12.2 lbs (5.55 kgs)
• 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 a balance of quality and value for everyday driving conditions. These rotors are designed to meet or exceed OEM specifications, providing dependable braking performance without additional features such as venting or ABS tone rings. The 121.33127 rotor is a solid type, suitable for applications where a smooth, consistent braking surface is required.

Detailed Product Description

This Centric disc brake rotor features a solid construction with a smooth surface, optimized for use on various Audi models including the A4, A5, A6, A7, and Q5. The rotor measures 11.811 inches in outside diameter and has a nominal thickness of 0.472 inches, ensuring compatibility with factory brake pads and calipers. The discard thickness is 0.394 inches, indicating when the rotor should be replaced to maintain safe braking performance. The rotor mounts using a floating disc mounting system with five lug holes, each 0.602 inches in diameter, and a mounting bolt hole circle diameter of 4.409 inches. The center hole diameter is 2.677 inches, matching OEM specifications for proper fitment. This rotor does not include an ABS tone ring or bearings, so it is intended for vehicles where these components are separate or not required.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation or noise
• Restores proper braking performance on Audi A4, A5, A6, A7, and Q5 models
• Addresses rotor thickness below manufacturer discard limits
• Eliminates uneven brake pad wear due to rotor surface imperfections
• Suitable for vehicles requiring solid rotors without venting or ABS tone rings

Installation Notes and Tips

• Verify rotor part number 121.33127 matches vehicle specifications before installation
• Inspect calipers and brake pads for wear during rotor replacement
• Ensure mounting surfaces are clean and free of debris for proper rotor seating
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Bleed brake system if necessary after installation to maintain brake responsiveness

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.33127 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to provide consistent braking performance when installed and maintained according to manufacturer guidelines.