Centric 121.33088 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.33088

The Centric C-TEK Standard Disc Brake Rotor 121.33088 is engineered for reliable braking performance on Audi S4 models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and stable stopping power under normal driving conditions.

• Compatible with Audi S4 vehicles
• Part number 121.33088 for precise identification
• Vented disc brake rotor design for improved cooling
• Overall diameter of 11.811 inches (300 mm)
• Nominal thickness of 0.866 inches (22 mm) with discard thickness at 0.787 inches (20 mm)
• Floating disc mounting style with straight vane design
• Five stud/lug holes with 0.591 inch (15 mm) diameter
• Center hole diameter of 2.677 inches (68 mm)
• Weight approximately 14 lbs (6.36 kgs)
• ABS tone ring not included

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric focuses on delivering OEM-equivalent replacement rotors that meet factory specifications. This product line emphasizes consistent quality and fitment for standard braking applications, making it suitable for routine maintenance and repair on vehicles like the Audi S4. The 121.33088 rotor maintains the original equipment dimensions and design features, including vented construction and floating mounting, to ensure proper brake system function.

Technical Description and Specifications

This Centric disc brake rotor features a vented design with straight vanes to facilitate effective heat dissipation during braking. The smooth surface finish supports even pad contact and wear. With an overall diameter of 11.811 inches (300 mm) and a nominal thickness of 0.866 inches (22 mm), it matches the original equipment dimensions for the Audi S4. The discard thickness is 0.787 inches (20 mm), indicating when the rotor should be replaced to maintain safe braking performance. The rotor mounts using a floating disc style and includes five lug holes sized at 0.591 inches (15 mm) diameter on a 4.409 inch (112 mm) bolt circle diameter. The center hole diameter is 2.677 inches (68 mm). This rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Audi S4 models
• Addresses brake pulsation caused by uneven rotor surfaces
• Restores proper rotor thickness to maintain braking efficiency
• Improves heat dissipation to reduce brake fade during normal driving
• Ensures correct fitment for vehicles requiring vented, floating rotors

Installation Notes and Tips

• Verify compatibility with Audi S4 before installation using part number 121.33088
• Inspect brake pads and replace if worn to ensure optimal rotor performance
• Clean mounting surfaces to prevent rotor runout and vibration
• Torque lug nuts to manufacturer specifications to avoid rotor damage
• Check rotor thickness and discard limits during installation

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.33088 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Users should consult product documentation or Centric directly for warranty terms applicable to this rotor.